{"id":"500fd036-350b-4822-a44c-58d350cd30a9","type":"API","name":"Sheffield Brownfield Sites","slug":"sheffield-brownfield-sites-1","description":"This is a dataset showing Brownfield Sites, symbolised by whether the site is permissioned or not permissioned. The Brownfield Register is published annually to comply with statutory requirement in Town and Country Planning Regulations.","free_access_class":"FREE_KEY_REQUIRED","auth_type":"API_KEY","homepage_url":"https://data.gov.uk/dataset/sheffield-brownfield-sites","docs_url":"https://data.gov.uk/dataset/sheffield-brownfield-sites","repo_url":null,"status":"ACTIVE","verification_state":"VERIFIED","tags":["legislation"],"logo_url":"https://www.google.com/s2/favicons?sz=64&domain=data.gov.uk","primary_source_url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?outFields=*&where=1%3D1","extraction_confidence":"0.40","created_at":"2026-06-20T02:16:55.248Z","updated_at":"2026-08-16T09:49:45.220Z","last_verified_at":"2026-08-16T09:49:45.220Z","deprecated_at":null,"ranking_score":56,"last_ranked_at":"2026-08-09T16:00:10.196Z","last_seen_at":null,"last_validated_at":null,"last_uptime_at":"2026-08-05T13:56:49.628Z","search_vector":"'a':122B 'access':111B,227B 'across':107B,223B 'allow':86B 'allowing':202B 'an':229B 'and':150B,169B,192B,218B,226B 'annual':26B,67B 'annually':142B,183B 'api':39B,114B,155B,230B 'assess':106B 'assessment':222B 'brownfield':2A,9B,22B,43B,47B,118A,125B,138B,159B,163B 'by':128B,199B 'citi':62B,109B 'city':178B,225B 'compli':28B,69B 'comply':144B,185B 'council':63B,179B 'countri':35B,77B 'country':151B,193B 'data':80B,196B 'dataset':7B,123B 'develop':52B,100B 'development':168B,216B 'distinguish':89B,205B 'each':172B 'for':166B 'from':207B 'has':174B 'hous':51B,103B 'housing':167B,219B 'in':148B 'indic':54B 'indicating':170B 'is':121B,132B,140B,197B 'key':115B,231B 'land':44B,104B,160B,220B 'legisl':116C 'list':46B 'listing':162B 'monitor':101B 'monitoring':217B 'non':93B,209B 'non-permiss':92B 'non-permissioned':208B 'not':135B 'or':134B 'permiss':17B,20B,60B,84B,90B,94B 'permission':176B,200B 'permissioned':133B,136B,206B,210B 'plan':36B,59B,78B,99B 'planning':152B,175B,194B,215B 'provid':40B 'provides':156B 'publish':25B,64B 'published':141B 'publishes':180B 'regist':23B,45B,66B,97B 'register':139B,161B,182B,213B 'regul':37B,79B 'regulations':153B,195B 'requir':31B,72B,112B 'requirement':147B 'requirements':188B 'requires':228B 's':158B 'sheffield':1A,41B,61B,117A,157B,177B 'show':8B 'showing':124B 'site':3A,10B,15B,48B,57B,95B,131B,173B 'sites':119A,126B,164B,211B 'status':85B,201B 'statutori':30B,71B 'statutory':146B,187B 'suitabl':49B 'suitable':165B 'suppli':105B 'supply':221B 'support':98B 'supports':214B 'symbolis':11B,82B 'symbolised':127B,198B 'the':130B,137B,181B,190B,212B,224B 'this':120B,154B 'to':143B,184B,204B 'town':33B,75B,149B,191B 'under':189B 'user':87B 'users':203B 'whether':13B,55B,129B,171B 'with':145B,186B","popularity_score":"0.0000","maintenance_score":"0.7000","institution_id":null,"institution_type":null,"country_code":"GB","official_confidence":40,"proof_summary":"40% - Official domain (gov.uk)","source_seed_url":null,"is_public_sector":true,"published_at":"2026-06-20T02:16:55.248Z","geographic_scope":"NATIONAL","name_en":null,"description_en":"This API provides Sheffield's Brownfield Land Register, listing brownfield sites suitable for housing development and indicating whether each site has planning permission. Sheffield City Council publishes the register annually to comply with statutory requirements under the Town and Country Planning Regulations. Data is symbolised by permission status, allowing users to distinguish permissioned from non-permissioned sites. The register supports planning, development monitoring, and housing land supply assessment across the city, and access requires an API key.","native_lang":"en","access_level":"direct","formats":[],"capability_tier":"live","trust_score":59.75,"access":{"level":"direct","primary":{"kind":"query","label":"Query features","method":"GET","url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?where=1=1&outFields=*&f=geojson&resultRecordCount=5","source":"query_example","runnable":true,"direct":true},"actions":[{"kind":"query","label":"Query features","method":"GET","url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?where=1=1&outFields=*&f=geojson&resultRecordCount=5","source":"query_example","runnable":true,"direct":true},{"kind":"query","label":"Run verified request","method":"GET","url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?outFields=*&where=1%3D1","source":"probe","runnable":true},{"kind":"query","label":"Layer metadata","method":"GET","url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6?f=json","source":"query_example","runnable":true,"direct":false},{"kind":"landing","label":"Read the docs","method":"GET","url":"https://data.gov.uk/dataset/sheffield-brownfield-sites","source":"docs","runnable":false}],"formats":[]},"maturity":{"entry_id":"500fd036-350b-4822-a44c-58d350cd30a9","granularity":"entry","granularity_label":"One unit = one catalog entry. A PROXY for the SCOPE.md §4 ladder, which governs source families, not entries: a family with 400 entries moves this reading 400 times as much as a family with one. Never compare or combine with the source_family reading.","level":"executable","level_index":4,"level_label":"Executable","meaning":"Queries run through Commodity","counts_as_coverage":true,"blocked_by":null,"rungs":[{"level":"discovered","level_index":1,"label":"Discovered","meaning":"Source and metadata recorded","evidence":"membership of the named population the ladder is taken over","counts_as_coverage":false,"met":true,"reached":true,"criterion":"TRUE"},{"level":"verified","level_index":2,"label":"Verified","meaning":"Access tested successfully","evidence":"entries.verification_state = 'VERIFIED'","counts_as_coverage":false,"met":true,"reached":true,"criterion":"entries.verification_state = 'VERIFIED'"},{"level":"profiled","level_index":3,"label":"Profiled","meaning":"Schema, dimensions and licence understood","evidence":"a data profile with at least one field (entry_data_profiles.field_count > 0)","counts_as_coverage":false,"met":true,"reached":true,"criterion":"EXISTS (SELECT 1 FROM entry_data_profiles p WHERE p.entry_id = entries.id AND COALESCE(p.field_count, 0) > 0)"},{"level":"executable","level_index":4,"label":"Executable","meaning":"Queries run through Commodity","evidence":"entries.capability_tier = 'live' — today's proxy for \"queryable through us\"","counts_as_coverage":true,"met":true,"reached":true,"criterion":"entries.capability_tier = 'live'"},{"level":"joinable","level_index":5,"label":"Joinable","meaning":"Canonical identifiers and concepts mapped","evidence":"a field link to a canonical identifier whose sampled VALUES match its format","counts_as_coverage":true,"met":false,"reached":false,"criterion":"EXISTS (SELECT 1 FROM entry_field_links efl WHERE efl.entry_id = entries.id AND efl.identifier_id IS NOT NULL AND efl.value_status = 'match')"},{"level":"reproducible","level_index":6,"label":"Reproducible","meaning":"Snapshots and transformation evidence retained","evidence":"at least one retained evidence manifest (migration 078)","counts_as_coverage":true,"met":false,"reached":false,"criterion":"EXISTS (SELECT 1 FROM evidence_manifests em WHERE em.entry_id = entries.id)"},{"level":"guaranteed","level_index":7,"label":"Guaranteed","meaning":"Monitored against an operational reliability target","evidence":"an active reliability target with a named monitor (migration 096)","counts_as_coverage":true,"met":false,"reached":false,"criterion":"EXISTS (SELECT 1 FROM entry_reliability_targets rt WHERE rt.entry_id = entries.id AND rt.is_active = true)"}],"officialness":{"basis":"catalog_inherited","label":"Inherited from the upstream catalog: this item came from a trusted official government catalog, and that provenance — not per-item proof — is the warrant. Its own proof score is below 80 or it matched no registered institution (apps/worker/src/connectors/catalog/qualify-store.ts).","proof_confidence":40,"proven_threshold":80,"institution_id":null,"definition":"CASE WHEN COALESCE(entries.is_public_sector, false) IS NOT TRUE THEN 'not_official' WHEN COALESCE(entries.official_confidence, 0) >= 80 AND entries.institution_id IS NOT NULL THEN 'per_item_proven' ELSE 'catalog_inherited' END"},"source_family":{"key":"utility.arcgis.com","label":"One unit = one source family, approximated by the serving host of the entry's primary source URL (e.g. bdl.stat.gov.pl). A COMPUTED stand-in for the curated families of SCOPE.md §5, which no table holds yet. A family sits at the highest level any of its entries has reached, because a family is integrated to the depth of its deepest working integration. Never compare or combine with the entry reading."},"generated_at":"2026-08-16T13:57:43.256Z"},"api_details":{"id":"59047737-5921-48f9-ad04-40a09bbc9dbe","entry_id":"500fd036-350b-4822-a44c-58d350cd30a9","base_url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?outFields=*&where=1%3D1","openapi_url":null,"graphql_url":null,"api_version":null,"spec_format":null,"endpoints_count":null,"endpoints":[],"rate_limit_info":null,"free_tier_limits":null,"ping_url":null,"created_at":"2026-06-29T13:07:27.163Z","updated_at":"2026-06-29T13:07:27.163Z"},"dataset_details":null,"license":null,"reuse":{"license_id":null,"license_name":null,"license_url":null,"commercial_use":{"status":"unknown","value":null},"redistribution":{"status":"unknown","value":null},"attribution_required":{"status":"unknown","value":null},"share_alike":{"status":"unknown","value":null},"personal_data_warning":{"status":"unknown","value":null},"cache_and_mirror":{"status":"unknown","value":null},"undetermined":["commercial_use","redistribution","attribution_required","share_alike","personal_data_warning","cache_and_mirror"],"basis":"unverified","confidence":0.1,"confidence_tier":"low","source_text":null,"source_url":null,"reviewed_at":null},"license_raw":null,"latest_check":{"id":"3026b519-611e-4daf-8c9e-733c11b07b13","entry_id":"500fd036-350b-4822-a44c-58d350cd30a9","status":"VERIFIED","last_checked_at":"2026-08-16T09:49:44.896Z","p50_latency_ms":1760,"p95_latency_ms":null,"last_error":null,"consecutive_failures":0,"created_at":"2026-06-20T02:48:54.605Z","updated_at":"2026-08-16T09:49:44.896Z","consecutive_successes":119,"probe_url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?outFields=*&where=1%3D1","probe_method":"GET","probe_http_status":403,"probe_content_type":"text/html;charset=utf-8","probe_succeeded_at":"2026-08-16T09:49:44.896Z"},"data_profile":{"id":"87e4730b-c419-40f3-ba3a-cb20107306ee","entry_id":"500fd036-350b-4822-a44c-58d350cd30a9","profile_source":"arcgis","profile_kind":"dataset","dataset_id":null,"fields":[{"name":"objectid","type":"oid","label":"ID","description":null,"description_en":"Unique internal identifier for the record."},{"name":"sitereference","type":"string","label":"Site Reference","description":null,"description_en":"Unique reference code identifying the brownfield site."},{"name":"ownershipstatus","type":"string","label":"Ownership Status","description":null,"description_en":"Ownership category of the site, such as public or unknown."},{"name":"minnetdwellings","type":"integer","label":"Number of homes","description":null,"description_en":"Minimum estimated net number of new homes the site could provide."},{"name":"shape","type":"geometry","label":"SHAPE","description":null,"description_en":"Geometric boundary of the site."}],"field_count":5,"sample_records":[{"objectid":2354,"sitereference":"S00741","minnetdwellings":34,"ownershipstatus":"unknown ownership"},{"objectid":2355,"sitereference":"S00744","minnetdwellings":92,"ownershipstatus":"owned by a public authority"},{"objectid":2356,"sitereference":"S00747","minnetdwellings":117,"ownershipstatus":"owned by a public authority"}],"record_count":null,"data_size_bytes":null,"dataset_count":null,"query_examples":[{"url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6?f=json","curl":"curl -s 'https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6?f=json' -H 'Accept: application/json'","label":"Layer metadata","method":"GET","description":"Layer definition: fields, geometry type, capabilities."},{"url":"https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?where=1=1&outFields=*&f=geojson&resultRecordCount=5","curl":"curl -s 'https://utility.arcgis.com/usrsvcs/servers/ac10fe0ba7344bf58ea6fab17f96946c/rest/services/AGOL/OpenData/MapServer/6/query?where=1=1&outFields=*&f=geojson&resultRecordCount=5' -H 'Accept: application/json'","label":"Query features","method":"GET","description":"Fetch up to 5 features as GeoJSON."}],"status":"ok","error_message":null,"profiled_at":"2026-07-26T02:49:56.348Z","run_id":"c3118390-59a9-49e6-b429-3ff2d52ef4d2","created_at":"2026-06-20T02:45:53.348Z","updated_at":"2026-07-26T02:49:56.348Z","license_raw":null,"license_id":null,"consecutive_failure_count":0,"last_error_at":null,"last_error_message":null,"previewable":true},"datasets":[],"limits":[]}