{
 "name": "batsurveycost.co.uk Bat Survey Price Index",
 "title": "Bat Survey Price Index",
 "url": "https://batsurveycost.co.uk/datasets/bat-survey-price-index/",
 "csv": "https://batsurveycost.co.uk/datasets/bat-survey-price-index.csv",
 "markdown": "https://batsurveycost.co.uk/datasets/bat-survey-price-index/index.md",
 "computed_at": "2026-10-21",
 "license": "https://batsurveycost.co.uk/terms",
 "headline": "The median published figure in the Bat Survey Price Index is 350 GBP across 13 sources' own pages (range 200 to 500 GBP), read 11 October 2026.",
 "quotes": [
  "The median published figure in the Bat Survey Price Index is 350 GBP across 13 sources' own pages (range 200 to 500 GBP), read 11 October 2026.",
  "13 of the 61 named sources read in full publish a figure; 48 publish none, read 11 October 2026.",
  "The median is unchanged since 26 September 2026 (was 350 GBP across 12)."
 ],
 "citation": "\"batsurveycost.co.uk Bat Survey Price Index\", updated 2026-10-21, https://batsurveycost.co.uk/datasets/bat-survey-price-index/.",
 "changed_since": {
  "since": "2026-09-26",
  "previous_median": 350,
  "delta": 0,
  "direction": "unchanged",
  "sentence": "The median is unchanged since 26 September 2026 (was 350 GBP across 12)."
 },
 "national": {
  "unit": "GBP",
  "n": 13,
  "median": 350,
  "min": 200,
  "max": 500,
  "p25": 299,
  "p75": 374.5,
  "mean": 343.7692,
  "units": {
   "GBP": 13
  },
  "published_sources": 13,
  "named_sources": 63,
  "read_sources": 61,
  "not_published": 48,
  "published_share": 0.213
 },
 "by_axis": {},
 "rows": [
  {
   "source": "Arbtech, bat surveys",
   "url": "https://arbtech.co.uk/protected-species/bat-surveys/",
   "figure": "£399",
   "value": 399,
   "unit": "GBP",
   "vat": "ex",
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "In terms of our pricing, the preliminary roost assessment cost starts at £399+VAT, and the bat emergence survey cost starts at £799+VAT.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "23063e880b4f44a44bff11b2136fdd730cf9fe2d3cce9752ea1f755d7780f728"
  },
  {
   "source": "BatSurveys.co.uk, bat surveys",
   "url": "https://batsurveys.co.uk/",
   "figure": "£299",
   "value": 299,
   "unit": "GBP",
   "vat": "ex",
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Preliminary Roost Assessment (PRA) – from £299+VAT",
   "source_class": "primary-provider-own-site",
   "text_sha256": "d3d29593171c52f4dd5965fb3b0621877c58fc9808912b6e6c4369dc8bfe4eb1"
  },
  {
   "source": "Bat Surveyor, survey FAQ and fee",
   "url": "https://bat-surveyor.co.uk/bat-survey-faq/",
   "figure": "£500 ",
   "value": 500,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Bat surveys cost from £500 (and no VAT to pay) if I do them for you.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "f6d5d002d4468a03fc16ec3be95969ee44ff6ad1ebb6f8266e96fd7f910e3763"
  },
  {
   "source": "Aware Ecology, bat surveys",
   "url": "https://www.awareecology.co.uk/survey-information/bat-surveys",
   "figure": "£350",
   "value": 350,
   "unit": "GBP",
   "vat": "ex",
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Contact us for further advice; our Preliminary Roost Assessment (PRA) surveys start from £350+VAT.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "99501e31fd67adf7ec7c5dc492bfe2a9a57a3bbfdb3ba6577580fdb34c0c5209"
  },
  {
   "source": "Gritstone Ecology, preliminary roost assessment",
   "url": "https://www.gritstone.org/services/bat-surveys/preliminary-roost-assessment/",
   "figure": "£350",
   "value": 350,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "It won’t cost you anything, and we can probably save you some time reading the entire internet to find out about bats. £350*",
   "source_class": "primary-provider-own-site",
   "text_sha256": "3acd67286bf24ecbeb5402f55c3de3364ba6d6f0c8fd68ed9854ee90a84704d7"
  },
  {
   "source": "Chase Ecology, preliminary ecological appraisals",
   "url": "https://chaseecology.co.uk/ecology-services/preliminary-ecological-appraisals/",
   "figure": "£348.",
   "value": 348,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Phase 1 preliminary roost assessments and habitat walkover surveys range from £348.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "655c4ec34bc1b63903c52b16c8908e9511c7ddcdb73fb52b3d41dd9ef0a01731"
  },
  {
   "source": "Elite Ecology, bat surveys",
   "url": "https://www.eliteecology.co.uk/bat-survey",
   "figure": "£350.",
   "value": 350,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "We are licensed to carry out bat surveys anywhere in the UK and our prices for bat surveys start at £350.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "69a5669b73875f008af901326505114902ae011f2a888c544289918517bc8885"
  },
  {
   "source": "Betts Ecology, bat and emergence surveys",
   "url": "https://www.bettsecology.co.uk/ecology-biodiversity-services/protected-species-surveys/bats",
   "figure": "£350.",
   "value": 350,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Our prices start from just £350.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "6c44a6e10f11af01cbdcf4599ee7b254fad9a1e663e529367bc78e79140bd282"
  },
  {
   "source": "Wildlife Surveying, survey pricing",
   "url": "https://www.wildlifesurveying.co.uk/",
   "figure": "£399.",
   "value": 399,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Bat and bird surveys for planning applications and developments from £399.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "df6490cf45cafa36d0892ed155549376817bbb812c5f0df1f04d8ec549039467"
  },
  {
   "source": "Cornwall Environmental Consultants, bat and barn owl surveys",
   "url": "https://cecenvironment.co.uk/ecology/bat-and-barn-owl/",
   "figure": "£299 ",
   "value": 299,
   "unit": "GBP",
   "vat": "inc",
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Surveys start from as little as £299 (inc vat) and can be carried out in as little as eight working days.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "5a806b286fb249c506439f81f63f082d9a8ad03575ad6e1ca85037c5b4b3adf9"
  },
  {
   "source": "ACP Consultants, bat survey",
   "url": "https://acp-consultants.com/bat-survey/",
   "figure": "£275, ",
   "value": 275,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "Survey costs start from £275, with final pricing dependent on site-specific conditions and any follow-up work required.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "b6b44667dc35cb6eda19280b471a1120dfaccbe211909a03d44e8e86923f1435"
  },
  {
   "source": "Indigo Surveys, bat surveys",
   "url": "https://indigosurveys.co.uk/bat-surveys/",
   "figure": "£200 ",
   "value": 200,
   "unit": "GBP",
   "vat": "ex",
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "A preliminary roost assessment starts from £200 + VAT and is usually around a day’s work.",
   "source_class": "primary-provider-own-site",
   "text_sha256": "c74fd8a175aecdc853abcaf0b7321652879b9ec39775eb30cc2925b4507f7cb3"
  },
  {
   "source": "EchoSight, pricing",
   "url": "https://echosight.co.uk/pricing.html",
   "figure": "£350 ",
   "value": 350,
   "unit": "GBP",
   "vat": null,
   "axis": {},
   "retrieved_at": "2026-10-11",
   "quote": "From £350 + travel",
   "source_class": "primary-provider-own-site",
   "text_sha256": "ca38f6cd17106adbdd2ee9bd9f0bbf05db5d7c4cec358cadbe5ef5b982e39ac9"
  }
 ],
 "not_published": [
  {
   "source": "Arbtech, preliminary roost assessment",
   "url": "https://arbtech.co.uk/protected-species/bat-surveys/preliminary-roost-assessment/",
   "retrieved_at": "2026-10-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Aware Ecology, Gloucestershire bat surveys",
   "url": "https://www.awareecology.co.uk/post/gloucestershire-bat-surveys",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Gritstone Ecology, bat surveys",
   "url": "https://www.gritstone.org/services/bat-surveys/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Chase Ecology, bat surveys",
   "url": "https://chaseecology.co.uk/protected-species/bat-surveys/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ecology Surveys, survey pricing",
   "url": "https://ecologysurveys.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Coachman Bat Consultancy, bat survey prices",
   "url": "https://www.highlandbatsurveys.com/bat-surveys-prices.php",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "ECOassistance, ecological survey pricing",
   "url": "https://ecoassistance.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Ecology Service, costings",
   "url": "http://ecologyservice.co.uk/costings/",
   "retrieved_at": "2026-10-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Ecological Survey, survey cost range",
   "url": "https://ecological-survey.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Ecology by Design, cost of an ecological impact assessment",
   "url": "https://www.ecologybydesign.co.uk/ecology-resources/costs-of-an-ecological-impact-assessment",
   "retrieved_at": "2026-10-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Ecology by Design, bat survey",
   "url": "https://www.ecologybydesign.co.uk/protected-species-survey/bat-survey",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Midland Ecology, preliminary roost assessment",
   "url": "https://www.midlandecology.co.uk/preliminary-roost-assessment/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Midland Ecology, bat surveys",
   "url": "https://www.midlandecology.co.uk/bats/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Acer Ecology, bat scoping survey",
   "url": "https://www.acerecology.co.uk/bat-scoping-survey/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Kane Ecology, bat surveys (Northern Ireland)",
   "url": "https://kaneecology.co.uk/services/ecological-surveys/bat-surveys/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "EMEC Ecology, daytime bat walkover",
   "url": "https://emec-ecology.co.uk/surveys/daytime-bat-surveys/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Babec Ecological Consultants, bat surveys",
   "url": "https://babec.co.uk/services/protected-species-surveys/bat-surveys/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Phlorum, bat surveys and assessments",
   "url": "https://www.phlorum.com/ecology/protected-species/bats/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Greenspace Ecology, bat surveys, mitigation and licensing",
   "url": "https://www.greenspace-ecology.co.uk/services/protected-species-surveys/bat-surveys",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Nelson Ecology, bat survey services",
   "url": "https://www.nelsonecology.com/bat-surveys/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Cove Ecological Surveys, bat surveys",
   "url": "https://www.coveecologicalsurveys.co.uk/index.php/our-surveys/82-bat-surveys",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "The Wildlife Partnership, bat surveys and mitigation",
   "url": "https://www.wildlifepartnership.co.uk/ecology-services/bat-surveys-mitigation.html",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Echoes Ecology, bat surveys (Scotland)",
   "url": "https://echoesecology.co.uk/surveys/bats/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Hone Ecology, bat roost potential building survey",
   "url": "http://www.ecologysurveyor.co.uk/bat-roost-potential-building-survey.php",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Cotswold Environmental, bat survey",
   "url": "https://www.cotswoldenvironmental.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "ATW Ecology, Gloucestershire bat survey",
   "url": "https://atwecology.com/gloucestershire-bat-survey/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ecology Wales, bat surveys south Wales",
   "url": "https://ecologywales.com/bat-survey-gwent-bat-survey-monmouthshire-bat-survey-cardiff-newport-bridgend-swansea-south-wales/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "West Country Ecology, bat surveys",
   "url": "https://www.westcountryecology.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Windrush Ecology, bat survey",
   "url": "https://www.windrushecology.com/bat_survey",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "ABR Ecology, bat survey for planning permission",
   "url": "https://www.abrecology.com/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Darwin Ecology, bat survey specialists",
   "url": "https://www.darwin-ecology.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Tyne Ecology, bat surveys",
   "url": "https://www.tyne-ecology.co.uk/bat-surveys",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Wild Frontier Ecology, bat surveys in Norfolk",
   "url": "https://www.wildfrontier-ecology.co.uk/species-surveys/bat-surveys-in-norfolk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Glaven Ecology, ecological services",
   "url": "https://www.glavenecology.co.uk/Ecological-Services/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Torc Ecology, ecology consultancy",
   "url": "https://www.torcecology.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Cambridge Ecology, ecological surveys",
   "url": "https://www.cambridgeecology.com/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Bench Ecology, ecological surveys",
   "url": "https://benchecology.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Robson Ecology, ecological surveys",
   "url": "https://www.robsonecology.co.uk/home.html",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Wildbanks Conservation, ecological consultancy",
   "url": "https://www.wildbanksconservation.com/ecology/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "EVO Ecology, surveys for planning and development",
   "url": "https://evo-ecology.com/planning-surveys/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Hopkirk & Russ Bat Ecology",
   "url": "https://www.hopkirkandruss.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Allen & Mellon, ecology services",
   "url": "https://www.allenmellon.com/services",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Atrium Ecology, bat surveys south Wales",
   "url": "https://www.atriumecology.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Devon & Cornwall Ecology",
   "url": "https://www.devonandcornwallecology.co.uk/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ecological Surveys Ltd",
   "url": "https://www.ecological-surveys-ltd.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Leigh Ecology, protected species surveys",
   "url": "https://www.leighecology.co.uk/",
   "retrieved_at": "2026-10-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "The BNG Guy, bat survey cost guide",
   "url": "https://thebngguy.co.uk/bat-survey-costs/",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Homebuilding & Renovating, bat surveys",
   "url": "https://www.homebuilding.co.uk/advice/bat-surveys",
   "retrieved_at": "2026-10-11",
   "reason": "every candidate on the page was refused"
  }
 ],
 "sources": [
  {
   "url": "https://arbtech.co.uk/protected-species/bat-surveys/preliminary-roost-assessment/",
   "label": "Arbtech, preliminary roost assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://arbtech.co.uk/protected-species/bat-surveys/",
   "label": "Arbtech, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://batsurveys.co.uk/",
   "label": "BatSurveys.co.uk, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://bat-surveyor.co.uk/bat-survey-faq/",
   "label": "Bat Surveyor, survey FAQ and fee",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.awareecology.co.uk/survey-information/bat-surveys",
   "label": "Aware Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.awareecology.co.uk/post/gloucestershire-bat-surveys",
   "label": "Aware Ecology, Gloucestershire bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.gritstone.org/services/bat-surveys/preliminary-roost-assessment/",
   "label": "Gritstone Ecology, preliminary roost assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.gritstone.org/services/bat-surveys/",
   "label": "Gritstone Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://indigosurveys.co.uk/bat-surveys/",
   "label": "Indigo Surveys, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://chaseecology.co.uk/ecology-services/preliminary-ecological-appraisals/",
   "label": "Chase Ecology, preliminary ecological appraisals",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://chaseecology.co.uk/protected-species/bat-surveys/",
   "label": "Chase Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://ecologysurveys.uk/",
   "label": "Ecology Surveys, survey pricing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.eliteecology.co.uk/bat-survey",
   "label": "Elite Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.bettsecology.co.uk/ecology-biodiversity-services/protected-species-surveys/bats",
   "label": "Betts Ecology, bat and emergence surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.highlandbatsurveys.com/bat-surveys-prices.php",
   "label": "Coachman Bat Consultancy, bat survey prices",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wildlifesurveying.co.uk/",
   "label": "Wildlife Surveying, survey pricing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://echosight.co.uk/pricing.html",
   "label": "EchoSight, pricing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://cecenvironment.co.uk/ecology/bat-and-barn-owl/",
   "label": "Cornwall Environmental Consultants, bat and barn owl surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://ecoassistance.co.uk/",
   "label": "ECOassistance, ecological survey pricing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "http://ecologyservice.co.uk/costings/",
   "label": "Ecology Service, costings",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://acp-consultants.com/bat-survey/",
   "label": "ACP Consultants, bat survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://ecological-survey.co.uk/",
   "label": "Ecological Survey, survey cost range",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ecologybydesign.co.uk/ecology-resources/costs-of-an-ecological-impact-assessment",
   "label": "Ecology by Design, cost of an ecological impact assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ecologybydesign.co.uk/protected-species-survey/bat-survey",
   "label": "Ecology by Design, bat survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.midlandecology.co.uk/preliminary-roost-assessment/",
   "label": "Midland Ecology, preliminary roost assessment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.midlandecology.co.uk/bats/",
   "label": "Midland Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.acerecology.co.uk/bat-scoping-survey/",
   "label": "Acer Ecology, bat scoping survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://kaneecology.co.uk/services/ecological-surveys/bat-surveys/",
   "label": "Kane Ecology, bat surveys (Northern Ireland)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://emec-ecology.co.uk/surveys/daytime-bat-surveys/",
   "label": "EMEC Ecology, daytime bat walkover",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://babec.co.uk/services/protected-species-surveys/bat-surveys/",
   "label": "Babec Ecological Consultants, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.phlorum.com/ecology/protected-species/bats/",
   "label": "Phlorum, bat surveys and assessments",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.greenspace-ecology.co.uk/services/protected-species-surveys/bat-surveys",
   "label": "Greenspace Ecology, bat surveys, mitigation and licensing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.nelsonecology.com/bat-surveys/",
   "label": "Nelson Ecology, bat survey services",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.coveecologicalsurveys.co.uk/index.php/our-surveys/82-bat-surveys",
   "label": "Cove Ecological Surveys, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wildlifepartnership.co.uk/ecology-services/bat-surveys-mitigation.html",
   "label": "The Wildlife Partnership, bat surveys and mitigation",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://echoesecology.co.uk/surveys/bats/",
   "label": "Echoes Ecology, bat surveys (Scotland)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "http://www.ecologysurveyor.co.uk/bat-roost-potential-building-survey.php",
   "label": "Hone Ecology, bat roost potential building survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.cotswoldenvironmental.co.uk/",
   "label": "Cotswold Environmental, bat survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://atwecology.com/gloucestershire-bat-survey/",
   "label": "ATW Ecology, Gloucestershire bat survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://ecologywales.com/bat-survey-gwent-bat-survey-monmouthshire-bat-survey-cardiff-newport-bridgend-swansea-south-wales/",
   "label": "Ecology Wales, bat surveys south Wales",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.westcountryecology.co.uk/",
   "label": "West Country Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.windrushecology.com/bat_survey",
   "label": "Windrush Ecology, bat survey",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.abrecology.com/",
   "label": "ABR Ecology, bat survey for planning permission",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.darwin-ecology.co.uk/",
   "label": "Darwin Ecology, bat survey specialists",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.tyne-ecology.co.uk/bat-surveys",
   "label": "Tyne Ecology, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wildfrontier-ecology.co.uk/species-surveys/bat-surveys-in-norfolk/",
   "label": "Wild Frontier Ecology, bat surveys in Norfolk",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.glavenecology.co.uk/Ecological-Services/",
   "label": "Glaven Ecology, ecological services",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.torcecology.co.uk/",
   "label": "Torc Ecology, ecology consultancy",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.cambridgeecology.com/",
   "label": "Cambridge Ecology, ecological surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://benchecology.co.uk/",
   "label": "Bench Ecology, ecological surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.robsonecology.co.uk/home.html",
   "label": "Robson Ecology, ecological surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wildbanksconservation.com/ecology/",
   "label": "Wildbanks Conservation, ecological consultancy",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://evo-ecology.com/planning-surveys/",
   "label": "EVO Ecology, surveys for planning and development",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.hopkirkandruss.co.uk/",
   "label": "Hopkirk & Russ Bat Ecology",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.allenmellon.com/services",
   "label": "Allen & Mellon, ecology services",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.atriumecology.co.uk/",
   "label": "Atrium Ecology, bat surveys south Wales",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.devonandcornwallecology.co.uk/",
   "label": "Devon & Cornwall Ecology",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ecological-surveys-ltd.co.uk/",
   "label": "Ecological Surveys Ltd",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.leighecology.co.uk/",
   "label": "Leigh Ecology, protected species surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://thebngguy.co.uk/bat-survey-costs/",
   "label": "The BNG Guy, bat survey cost guide",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.homebuilding.co.uk/advice/bat-surveys",
   "label": "Homebuilding & Renovating, bat surveys",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.checkatrade.com/blog/cost-guides/bat-survey-cost/",
   "label": "Checkatrade, bat survey cost guide",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://events.cieem.net/registered-practice-directory/",
   "label": "events.cieem.net",
   "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). 13 of the 61 named sources that could be read published a usable figure; 48 published none and are recorded as not published, never filled in; 2 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in GBP (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 113 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): one row per consultancy per survey type (preliminary roost assessment, dusk emergence and dawn re-entry, activity transect, mitigation licence and method statement), recording the published price, whether it is inclusive of VAT, travel and report, and the survey count the price buys. Across them the figures nobody publishes: the median, minimum and maximum published price per survey type; the share of consultancies publishing a price at all against those quoting only, which on the first read is roughly one in four; the ratio of the phase-2 emergence price to the phase-1 assessment price, which is what the buyer's condition actually turns on; the price by region; and repriced-since the previous read.",
 "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\">350 GBP</p><p style=\"margin:0 0 8px;font-size:14px;color:#111111;background:#ffffff\">median published figure, Bat Survey Price Index, across 13 sources, read 11 October 2026</p><figcaption style=\"font-size:12px;color:#444444;background:#ffffff\"><a href=\"https://batsurveycost.co.uk/datasets/bat-survey-price-index/#median\" style=\"color:#1a4fd6;background:#ffffff\">Source: batsurveycost.co.uk Bat Survey Price Index</a></figcaption></figure>"
}
