{
 "name": "contaminatedlandsurveycost.co.uk Contaminated Land Survey Fee Index",
 "title": "Contaminated Land Survey Fee Index",
 "url": "https://contaminatedlandsurveycost.co.uk/datasets/contaminated-land-survey-fee-index/",
 "csv": "https://contaminatedlandsurveycost.co.uk/datasets/contaminated-land-survey-fee-index.csv",
 "markdown": "https://contaminatedlandsurveycost.co.uk/datasets/contaminated-land-survey-fee-index/index.md",
 "computed_at": "2026-10-28",
 "license": "https://contaminatedlandsurveycost.co.uk/terms",
 "headline": "For phase-1, the median published figure in the Contaminated Land Survey Fee Index is 750 GBP across 9 figures from the sources' own pages (range 500 to 950 GBP), read 27 October 2026.",
 "quotes": [
  "For phase-1, the median published figure in the Contaminated Land Survey Fee Index is 750 GBP across 9 figures from the sources' own pages (range 500 to 950 GBP), read 27 October 2026.",
  "17 of the 53 named sources read in full publish a figure; 41 publish none, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage phase-1-walkover: median 845 GBP across 3 sources, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage phase-1: median 750 GBP across 9 sources, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage coal-mining-risk: median 575 GBP across 2 sources, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage ground-gas: median 650 GBP across 1 source, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage screening: median 185 GBP across 4 sources, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage phase-2: median 1,650 GBP across 4 sources, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage verification: median 495 GBP across 1 source, read 27 October 2026.",
  "Contaminated Land Survey Fee Index, stage phase-1-sampling: median 1,250 GBP across 1 source, read 27 October 2026."
 ],
 "citation": "\"contaminatedlandsurveycost.co.uk Contaminated Land Survey Fee Index\", updated 2026-10-28, https://contaminatedlandsurveycost.co.uk/datasets/contaminated-land-survey-fee-index/.",
 "changed_since": null,
 "national": {
  "unit": "GBP",
  "n": 25,
  "median": 750,
  "min": 39,
  "max": 1800,
  "p25": 500,
  "p75": 950,
  "mean": 774.76,
  "units": {
   "GBP": 25
  },
  "published_sources": 17,
  "named_sources": 62,
  "read_sources": 53,
  "not_published": 41,
  "published_share": 0.321
 },
 "by_axis": {
  "stage": {
   "phase-1-walkover": {
    "GBP": {
     "n": 3,
     "median": 845,
     "min": 800,
     "max": 950,
     "p25": 800,
     "p75": 950,
     "mean": 865
    }
   },
   "phase-1": {
    "GBP": {
     "n": 9,
     "median": 750,
     "min": 500,
     "max": 950,
     "p25": 550,
     "p75": 822.5,
     "mean": 713.3333
    }
   },
   "coal-mining-risk": {
    "GBP": {
     "n": 2,
     "median": 575,
     "min": 550,
     "max": 600,
     "p25": null,
     "p75": null,
     "mean": 575
    }
   },
   "ground-gas": {
    "GBP": {
     "n": 1,
     "median": 650,
     "min": 650,
     "max": 650,
     "p25": 650,
     "p75": 650,
     "mean": 650
    }
   },
   "screening": {
    "GBP": {
     "n": 4,
     "median": 185,
     "min": 39,
     "max": 300,
     "p25": 48,
     "p75": 298.75,
     "mean": 177.25
    }
   },
   "phase-2": {
    "GBP": {
     "n": 4,
     "median": 1650,
     "min": 1000,
     "max": 1800,
     "p25": 1125,
     "p75": 1800,
     "mean": 1525
    }
   },
   "verification": {
    "GBP": {
     "n": 1,
     "median": 495,
     "min": 495,
     "max": 495,
     "p25": 495,
     "p75": 495,
     "mean": 495
    }
   },
   "phase-1-sampling": {
    "GBP": {
     "n": 1,
     "median": 1250,
     "min": 1250,
     "max": 1250,
     "p25": 1250,
     "p75": 1250,
     "mean": 1250
    }
   }
  }
 },
 "rows": [
  {
   "source": "Earth Environmental & Geotechnical - Phase 1 desk study",
   "url": "https://www.earthenvironmental.co.uk/phase-1-desk-study/",
   "figure": "£950 ",
   "value": 950,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1-walkover"
   },
   "retrieved_at": "2026-10-12",
   "quote": ", ideal for planning applications £950 +VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": "36c582ea8cdd673ab5663bf15e1a86469a1723816daa9dd1bdae2621e7a3e38c"
  },
  {
   "source": "Earth Environmental & Geotechnical - Phase 1 desk study",
   "url": "https://www.earthenvironmental.co.uk/phase-1-desk-study/",
   "figure": "£750 ",
   "value": 750,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-12",
   "quote": "A Basic Phase 1 Desk Study report without a site walkover survey would be provided for a fixed price of £750 +VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": "36c582ea8cdd673ab5663bf15e1a86469a1723816daa9dd1bdae2621e7a3e38c"
  },
  {
   "source": "Earth Environmental & Geotechnical - coal mining risk assessment",
   "url": "https://www.earthenvironmental.co.uk/coal-mining-risk-assessment/",
   "figure": "£ 600.00 ",
   "value": 600,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "coal-mining-risk"
   },
   "retrieved_at": "2026-10-12",
   "quote": "We offer a fixed price Coal Mining Risk Assessment for £ 600.00 excl VAT.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "4ed1742d97e3bd42a0092212848d0be511b77fae3290c68f11056bce989d3795"
  },
  {
   "source": "Earth Environmental & Geotechnical - coal mine gas risk assessment",
   "url": "https://www.earthenvironmental.co.uk/coal-mine-gas-risk-assessment/",
   "figure": "£650.00 ",
   "value": 650,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "ground-gas"
   },
   "retrieved_at": "2026-10-12",
   "quote": "We offer a fixed price Coal Mine Gas Risk Assessment for £650.00 excl VAT.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "0a0f6409fc370aa08ce4aa43bdf81d3705f93954ef20a235d2bf9c31ade84db4"
  },
  {
   "source": "Ground & Water - Phase 1 desk study",
   "url": "https://www.groundandwater.co.uk/product/desktop-study/",
   "figure": "£300 ",
   "value": 300,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "screening"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Or even at the planning stage? We also offer a £300 +VAT anticipated ground conditions sheet, which is a pre-cursor to the Desk Studies and SI.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "1dc7ef2d076358527238d870d713ef7a413c661dd66f3f246878a0bda705da95"
  },
  {
   "source": "Soilutions - how much does a Phase 2 site investigation cost",
   "url": "https://www.soilutions.co.uk/guides/how-much-does-a-phase-2-site-investigation-report-cost/",
   "figure": "£1,500 ",
   "value": 1500,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-2"
   },
   "retrieved_at": "2026-10-12",
   "quote": "Our soil site investigations start at around £1,500 for a basic investigation for a single residential plot, but can exceed hundreds of thousands of pounds for large developments or particularly contaminated sites.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "2de42eb50daf3aa77fe32319b66615eb8f5a7e7d1e716a551dde8c76cf031894"
  },
  {
   "source": "EnviroSolution - Phase 1 desk study cost",
   "url": "https://envirosolution.co.uk/how-much-does-a-phase-1-desktop-study-cost/",
   "figure": "£500 ",
   "value": 500,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Site Type Typical Fee Range Turnaround Small residential plot £500 – £700 5–7 working days",
   "source_class": "primary-provider-own-site",
   "text_sha256": "476197172212db7d8f6312030b0c0d19e388f96dfd64e6183c49d90a37d65dce"
  },
  {
   "source": "Arbtech - contaminated land survey",
   "url": "https://arbtech.co.uk/contaminated-land-survey/",
   "figure": "£1800.",
   "value": 1800,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-2"
   },
   "retrieved_at": "2026-10-12",
   "quote": "Costs for further surveys vary according to site requirements; a phase 2 intrusive survey can start at around £1800.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "14ef0696de4098a98f3d04843e4618d72fcea3a9fc4a717bc15d17bbc1b049b1"
  },
  {
   "source": "Arbtech - contaminated land survey",
   "url": "https://arbtech.co.uk/contaminated-land-survey/",
   "figure": "£950 ",
   "value": 950,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-12",
   "quote": "Generally speaking, the cost of a phase 1 contaminated land survey starts at £950 for residential or smaller commercial sites.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "14ef0696de4098a98f3d04843e4618d72fcea3a9fc4a717bc15d17bbc1b049b1"
  },
  {
   "source": "Cornwall Mining Consultants - contaminated land",
   "url": "https://cornwallminingconsultants.co.uk/services/contaminated-land/",
   "figure": "£750 ",
   "value": 750,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "A Phase I Land Contamination Desk Study starts from £750 + VAT, with the costs of further staged assessments dependent on the findings and recommendations of the Phase I Report.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "4ac15903d239112c45ecfab420deeac503221ecc454a7088f0f5c5fef9fd07ba"
  },
  {
   "source": "Castledine Environmental - costs",
   "url": "https://www.castledineenvironmental.co.uk/costs",
   "figure": "£795",
   "value": 795,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "From £795",
   "source_class": "primary-provider-own-site",
   "text_sha256": "a5e5d8b54625bc737b49d186dbdc70179a5766a2f83ea3073dc77a0e2f069b28"
  },
  {
   "source": "Castledine Environmental - costs",
   "url": "https://www.castledineenvironmental.co.uk/costs",
   "figure": "£1800",
   "value": 1800,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-2"
   },
   "retrieved_at": "2026-10-27",
   "quote": "From £1800",
   "source_class": "primary-provider-own-site",
   "text_sha256": "a5e5d8b54625bc737b49d186dbdc70179a5766a2f83ea3073dc77a0e2f069b28"
  },
  {
   "source": "Castledine Environmental - costs",
   "url": "https://www.castledineenvironmental.co.uk/costs",
   "figure": "£495",
   "value": 495,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "verification"
   },
   "retrieved_at": "2026-10-27",
   "quote": "£495",
   "source_class": "primary-provider-own-site",
   "text_sha256": "a5e5d8b54625bc737b49d186dbdc70179a5766a2f83ea3073dc77a0e2f069b28"
  },
  {
   "source": "Castledine Environmental - costs",
   "url": "https://www.castledineenvironmental.co.uk/costs",
   "figure": "£550",
   "value": 550,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "coal-mining-risk"
   },
   "retrieved_at": "2026-10-27",
   "quote": "From £550",
   "source_class": "primary-provider-own-site",
   "text_sha256": "a5e5d8b54625bc737b49d186dbdc70179a5766a2f83ea3073dc77a0e2f069b28"
  },
  {
   "source": "G&J Geoenvironmental - Phase II site investigation",
   "url": "https://www.gjgeoenvironmental.com/phase-ii-site-investigation-services",
   "figure": "£1K",
   "value": 1000,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-2"
   },
   "retrieved_at": "2026-10-27",
   "quote": "For example, a very simple investigation on a one or two-plot residential development comprising the collection of a few near-surface samples for laboratory analysis for a suite of common contaminants would start at around £1K plus VAT, including all siteworks and reporting.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "0cbc3704c8ef20f4adb2e77fda35b19090a9cfd986339688e918267f1e1a9e63"
  },
  {
   "source": "PF & Co Site Intelligence - Phase 1 desk study",
   "url": "https://www.pfandco.co.uk/reports/phase-1-desk-study",
   "figure": "£295",
   "value": 295,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "screening"
   },
   "retrieved_at": "2026-10-27",
   "quote": "FROM £295",
   "source_class": "primary-provider-own-site",
   "text_sha256": "6d71fba0f2cf2063d39bf2bc16da4abe5d8bdd215e74bb474ca67adde7857391"
  },
  {
   "source": "GeoScreen - ground risk screening",
   "url": "https://geoscreen.uk/",
   "figure": "£75 ",
   "value": 75,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "screening"
   },
   "retrieved_at": "2026-10-27",
   "quote": "GROUND RISK SCREENING · ENGLAND, WALES & SCOTLAND · FROM £75 + VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": "d9f74a952b23423cf2eae3b43b1904d81e8590c312be5fd8e490753ed30f6079"
  },
  {
   "source": "AIGEOREPORT - ground risk report",
   "url": "https://aigeoreport.com/",
   "figure": "£39 ",
   "value": 39,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "screening"
   },
   "retrieved_at": "2026-10-27",
   "quote": "from coordinates to report £39 (~$49)",
   "source_class": "primary-provider-own-site",
   "text_sha256": "26d476dee4c823947707c86378491d79b50b40dc6ef470627a882350026ea680"
  },
  {
   "source": "GeoSmart Information - contaminated land reports",
   "url": "https://geosmartinfo.co.uk/reports/contaminated-land/",
   "figure": "£850 ",
   "value": 850,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Phase 1 Contaminated Land Reports from £850 + VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Ground First - Phase 1 contaminated land reports",
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/",
   "figure": "£725 ",
   "value": 725,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "PHASE 1 DESKTOP from £725 +VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Ground First - Phase 1 contaminated land reports",
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/",
   "figure": "£845 ",
   "value": 845,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1-walkover"
   },
   "retrieved_at": "2026-10-27",
   "quote": "PHASE 1 INSPECT from £845 +VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Ground First - Phase 1 contaminated land reports",
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/",
   "figure": "£1250 ",
   "value": 1250,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1-sampling"
   },
   "retrieved_at": "2026-10-27",
   "quote": "PHASE 1 SAMPLE from £1250 +VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Technics Group - Phase 1 desk study",
   "url": "https://www.technicsgroup.com/services/phase-1-desk-study",
   "figure": "£800 ",
   "value": 800,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1-walkover"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Prices from £800 + VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Technics Group - Phase 1 desk study",
   "url": "https://www.technicsgroup.com/services/phase-1-desk-study",
   "figure": "£600 ",
   "value": 600,
   "unit": "GBP",
   "vat": "ex",
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Prices from £600 + VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  },
  {
   "source": "Soilutions - how much does a Phase 1 desk study cost",
   "url": "https://www.soilutions.co.uk/guides/how-much-does-a-phase-1-desk-study-report-cost/",
   "figure": "£500 ",
   "value": 500,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "stage": "phase-1"
   },
   "retrieved_at": "2026-10-27",
   "quote": "Soilutions’ Phase 1 Desk Study / Preliminary Risk Assessment reports range from £500 to £1,200 (+VAT) and we always strive to maximise the value to our clients.",
   "source_class": "primary-provider-own-site",
   "text_sha256": ""
  }
 ],
 "not_published": [
  {
   "source": "Earth Environmental & Geotechnical - do I need a Phase 1",
   "url": "https://www.earthenvironmental.co.uk/do-i-need-a-phase-1-desk-study/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Earth Environmental & Geotechnical - when do you need a Phase 1",
   "url": "https://www.earthenvironmental.co.uk/when-do-you-need-a-phase-1-desk-study/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Earth Environmental & Geotechnical - purchase Phase 1",
   "url": "https://www.earthenvironmental.co.uk/purchase-phase-1/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "GeoSmart Information - contaminated land knowledge hub",
   "url": "https://geosmartinfo.co.uk/knowledge-hub/contaminated-land/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "GeoSmart Information - what is a Phase 1 desk study",
   "url": "https://geosmartinfo.co.uk/blog/phase-1-desk-study/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ground First - Phase 1 desktop",
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/phase-1-desktop/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Ground First - Phase 1 sample",
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/phase-1-sample/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Soilutions - Phase 1 desk study report",
   "url": "https://www.soilutions.co.uk/reports/phase-1-desk-study-report/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "EnviroSolution - Phase 1 desktop study",
   "url": "https://envirosolution.co.uk/services/phase-1-desktop-study/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Arbtech - contaminated land remediation",
   "url": "https://arbtech.co.uk/contaminated-land-remediation/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Arbtech - land contamination assessment",
   "url": "https://arbtech.co.uk/land-contamination-assessment/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Arbtech - contaminated land",
   "url": "https://arbtech.co.uk/contaminated-land/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Arbtech - ground gas risk assessment",
   "url": "https://arbtech.co.uk/ground-gas-risk-assessment/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "G&J Geoenvironmental - Phase I desk study",
   "url": "https://www.gjgeoenvironmental.com/phase-i-desk-study-pra",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "PraxPro - geoenvironmental reports",
   "url": "https://praxpro.co.uk/geoenvironmental-reports/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Adeptus - fixed cost Phase 1 desk study",
   "url": "https://adeptus.co.uk/phase-1/desk-study-report-contamination",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Adeptus - Phase 2 contaminated land assessment",
   "url": "https://adeptus.co.uk/phase-2/contaminated-land-assessment/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Adeptus - contaminated land consultant",
   "url": "https://adeptus.co.uk/contaminated-land-consultant",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Jomas Associates - Phase 1",
   "url": "https://jomasassociates.com/phase-1/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Jomas Associates - land contamination assessments",
   "url": "https://jomasassociates.com/land-contamination-assessments/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Fortress Associates - Phase 1 desk study",
   "url": "https://clockfortress.com/phase-1-desk-study/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Contaminated Land Surveys",
   "url": "https://contaminatedlandsurveys.com/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ashfield Solutions - Phase 1 contaminated land report",
   "url": "https://www.ashfieldsolutions.com/services-land/phase-1-environmental-risk-assessment/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Clear Environmental - FAQ",
   "url": "https://www.clearenviro.co.uk/faq",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Clear Environmental - coal mining risk assessment",
   "url": "https://www.clearenviro.co.uk/services/coal-mining-risk-assessment",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Roberts Environmental - ground gas assessment",
   "url": "https://www.robertsenvironmental.co.uk/services/ground-gas-assessment",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Roberts Environmental - coal mining risk assessment",
   "url": "https://www.robertsenvironmental.co.uk/services/coal-mining-risk-assessment",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "IGE Consulting - ground gas risk assessment",
   "url": "https://igeconsulting.co.uk/news/ground-gas-risk-assessment/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "SOCOTEC - contaminated land investigation",
   "url": "https://www.socotec.co.uk/our-services/contaminated-land-investigation-and-consultancy",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Kiwa - contaminated land investigation",
   "url": "https://www.kiwa.com/en/gb/services/testing/contaminated-land-investigation/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Southwest Environmental - geo-environmental consultants",
   "url": "https://southwest-environmental.co.uk/navigation_pages/navigation_geo_environmental_consultants.html",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Wesson Environmental - land contamination investigation guide",
   "url": "https://wessonenvironmental.co.uk/land-contamination-investigation-uk-guide/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Adler & Allan - contaminated land survey",
   "url": "https://www.adlerandallan.co.uk/services/strategy-consultancy/land-quality/contaminated-land-survey",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "The Testing Lab - contaminated land soil testing cost",
   "url": "https://thetestinglab.eu/contaminated-land-soil-testing-cost-uk-the-2026-professional-pricing-guide/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Groundsure - Coal Authority consultants coal mining report",
   "url": "https://www.groundsure.com/products/the-coal-authority-consultants-coal-mining-report-product-page/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Property Searches Direct - EnviroSmart Plus Phase 1 (reseller)",
   "url": "https://www.propertysearchesdirect.co.uk/product-page/ES-phase1",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "BuildHub forum - expected intrusive Phase 2 costs",
   "url": "https://forum.buildhub.org.uk/topic/36446-expected-intrusive-phase-2-geo-and-contamination-survey-costs/",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "HouseCheckup - environmental search",
   "url": "https://housecheckup.co.uk/environmental-search",
   "retrieved_at": "2026-10-27",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "24Housing - Phase 1 contaminated land report",
   "url": "https://24housing.co.uk/phase-1-contaminated-land-report/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "AGS - Association of Geotechnical and Geoenvironmental Specialists",
   "url": "https://www.ags.org.uk/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "SiLC - Specialist in Land Condition Register",
   "url": "https://www.silc.org.uk/",
   "retrieved_at": "2026-10-27",
   "reason": "read in full and no accepted figure on the page"
  }
 ],
 "sources": [
  {
   "url": "https://www.earthenvironmental.co.uk/phase-1-desk-study/",
   "label": "Earth Environmental & Geotechnical - Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.earthenvironmental.co.uk/do-i-need-a-phase-1-desk-study/",
   "label": "Earth Environmental & Geotechnical - do I need a Phase 1",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.earthenvironmental.co.uk/when-do-you-need-a-phase-1-desk-study/",
   "label": "Earth Environmental & Geotechnical - when do you need a Phase 1",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.earthenvironmental.co.uk/purchase-phase-1/",
   "label": "Earth Environmental & Geotechnical - purchase Phase 1",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.earthenvironmental.co.uk/coal-mining-risk-assessment/",
   "label": "Earth Environmental & Geotechnical - coal mining risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.earthenvironmental.co.uk/coal-mine-gas-risk-assessment/",
   "label": "Earth Environmental & Geotechnical - coal mine gas risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.groundandwater.co.uk/product/desktop-study/",
   "label": "Ground & Water - Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://geosmartinfo.co.uk/reports/contaminated-land/",
   "label": "GeoSmart Information - contaminated land reports",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://geosmartinfo.co.uk/knowledge-hub/contaminated-land/",
   "label": "GeoSmart Information - contaminated land knowledge hub",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://geosmartinfo.co.uk/blog/phase-1-desk-study/",
   "label": "GeoSmart Information - what is a Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/",
   "label": "Ground First - Phase 1 contaminated land reports",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/phase-1-desktop/",
   "label": "Ground First - Phase 1 desktop",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://groundfirst.com/reports/phase-1-contaminated-land-reports/phase-1-sample/",
   "label": "Ground First - Phase 1 sample",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.technicsgroup.com/services/phase-1-desk-study",
   "label": "Technics Group - Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.soilutions.co.uk/guides/how-much-does-a-phase-1-desk-study-report-cost/",
   "label": "Soilutions - how much does a Phase 1 desk study cost",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.soilutions.co.uk/guides/how-much-does-a-phase-2-site-investigation-report-cost/",
   "label": "Soilutions - how much does a Phase 2 site investigation cost",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.soilutions.co.uk/reports/phase-1-desk-study-report/",
   "label": "Soilutions - Phase 1 desk study report",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://envirosolution.co.uk/how-much-does-a-phase-1-desktop-study-cost/",
   "label": "EnviroSolution - Phase 1 desk study cost",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://envirosolution.co.uk/services/phase-1-desktop-study/",
   "label": "EnviroSolution - Phase 1 desktop study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://envirosolution.co.uk/services/coal-mining-risk-assessment/",
   "label": "EnviroSolution - coal mining risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/contaminated-land-survey/",
   "label": "Arbtech - contaminated land survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/contaminated-land-remediation/",
   "label": "Arbtech - contaminated land remediation",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/land-contamination-assessment/",
   "label": "Arbtech - land contamination assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/contaminated-land/",
   "label": "Arbtech - contaminated land",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/ground-gas-risk-assessment/",
   "label": "Arbtech - ground gas risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://cornwallminingconsultants.co.uk/services/contaminated-land/",
   "label": "Cornwall Mining Consultants - contaminated land",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.castledineenvironmental.co.uk/costs",
   "label": "Castledine Environmental - costs",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.gjgeoenvironmental.com/post/phase-i-phase-ii-site-investigation-costs-uk",
   "label": "G&J Geoenvironmental - Phase I and II costs guide",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.gjgeoenvironmental.com/phase-ii-site-investigation-services",
   "label": "G&J Geoenvironmental - Phase II site investigation",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.gjgeoenvironmental.com/phase-i-desk-study-pra",
   "label": "G&J Geoenvironmental - Phase I desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.pfandco.co.uk/reports/phase-1-desk-study",
   "label": "PF & Co Site Intelligence - Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://praxpro.co.uk/geoenvironmental-reports/",
   "label": "PraxPro - geoenvironmental reports",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://geoscreen.uk/",
   "label": "GeoScreen - ground risk screening",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://aigeoreport.com/",
   "label": "AIGEOREPORT - ground risk report",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://adeptus.co.uk/land-contamination-assessment/",
   "label": "Adeptus - land contamination assessment 2026",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://adeptus.co.uk/phase-1/desk-study-report-contamination",
   "label": "Adeptus - fixed cost Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://adeptus.co.uk/phase-2/contaminated-land-assessment/",
   "label": "Adeptus - Phase 2 contaminated land assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://adeptus.co.uk/contaminated-land-consultant",
   "label": "Adeptus - contaminated land consultant",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://jomasassociates.com/phase-1/",
   "label": "Jomas Associates - Phase 1",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://jomasassociates.com/land-contamination-assessments/",
   "label": "Jomas Associates - land contamination assessments",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://clockfortress.com/phase-1-desk-study/",
   "label": "Fortress Associates - Phase 1 desk study",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://contaminatedlandsurveys.com/",
   "label": "Contaminated Land Surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ashfieldsolutions.com/services-land/phase-1-environmental-risk-assessment/",
   "label": "Ashfield Solutions - Phase 1 contaminated land report",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.clearenviro.co.uk/faq",
   "label": "Clear Environmental - FAQ",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.clearenviro.co.uk/services/coal-mining-risk-assessment",
   "label": "Clear Environmental - coal mining risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.robertsenvironmental.co.uk/services/ground-gas-assessment",
   "label": "Roberts Environmental - ground gas assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.robertsenvironmental.co.uk/services/coal-mining-risk-assessment",
   "label": "Roberts Environmental - coal mining risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://igeconsulting.co.uk/news/ground-gas-risk-assessment/",
   "label": "IGE Consulting - ground gas risk assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.socotec.co.uk/our-services/contaminated-land-investigation-and-consultancy",
   "label": "SOCOTEC - contaminated land investigation",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.kiwa.com/en/gb/services/testing/contaminated-land-investigation/",
   "label": "Kiwa - contaminated land investigation",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://southwest-environmental.co.uk/navigation_pages/navigation_geo_environmental_consultants.html",
   "label": "Southwest Environmental - geo-environmental consultants",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://wessonenvironmental.co.uk/land-contamination-investigation-uk-guide/",
   "label": "Wesson Environmental - land contamination investigation guide",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.adlerandallan.co.uk/services/strategy-consultancy/land-quality/contaminated-land-survey",
   "label": "Adler & Allan - contaminated land survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://thetestinglab.eu/contaminated-land-soil-testing-cost-uk-the-2026-professional-pricing-guide/",
   "label": "The Testing Lab - contaminated land soil testing cost",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.groundsure.com/products/the-coal-authority-consultants-coal-mining-report-product-page/",
   "label": "Groundsure - Coal Authority consultants coal mining report",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.propertysearchesdirect.co.uk/product-page/ES-phase1",
   "label": "Property Searches Direct - EnviroSmart Plus Phase 1 (reseller)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://forum.buildhub.org.uk/topic/36446-expected-intrusive-phase-2-geo-and-contamination-survey-costs/",
   "label": "BuildHub forum - expected intrusive Phase 2 costs",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.mybuilder.com/architectural-services/price-guides/land-survey-cost",
   "label": "MyBuilder - land survey cost",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://housecheckup.co.uk/environmental-search",
   "label": "HouseCheckup - environmental search",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://24housing.co.uk/phase-1-contaminated-land-report/",
   "label": "24Housing - Phase 1 contaminated land report",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ags.org.uk/",
   "label": "AGS - Association of Geotechnical and Geoenvironmental Specialists",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.silc.org.uk/",
   "label": "SiLC - Specialist in Land Condition Register",
   "license": "the publisher's own terms; quoted for reporting and comment"
  }
 ],
 "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 17 of the 53 named sources that could be read published a usable figure; 41 published none and are recorded as not published, never filled in; 9 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 25 figures, never sentences; 150 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): per STAGE (screening, Phase 1 without walkover, Phase 1 with walkover, Phase 2, ground gas, coal mining risk assessment) the median, quartiles and range of the published 'from' prices, ex VAT, across firms that publish; the share of firms that publish a price at all; nobody publishes this across the market",
 "embed": "<figure style=\"margin:0;padding:16px;border:1px solid #d9d9d9;border-radius:8px;background:#ffffff;color:#111111;font-family:system-ui,sans-serif;max-width:480px\"><p style=\"margin:0 0 8px;font-size:28px;font-weight:700;color:#111111;background:#ffffff\">750 GBP</p><p style=\"margin:0 0 8px;font-size:14px;color:#111111;background:#ffffff\">median for phase-1, Contaminated Land Survey Fee Index, across 9 figures, read 27 October 2026</p><figcaption style=\"font-size:12px;color:#444444;background:#ffffff\"><a href=\"https://contaminatedlandsurveycost.co.uk/datasets/contaminated-land-survey-fee-index/#median\" style=\"color:#1a4fd6;background:#ffffff\">Source: contaminatedlandsurveycost.co.uk Contaminated Land Survey Fee Index</a></figcaption></figure>"
}
