Sample response · GET /v1/dossier?postcode=HA7+2SN
This is a real PropertyDossier for a real site: the former National Grid works on Marsh Lane, Stanmore (Harrow) — a retail scheme refused in 2025 and now at appeal. Nothing below is mocked. Every layer says where its data came from and when we fetched it; a layer we can't serve says so and why.
Coverage honesty: high
100% of this authority's decided applications (last 3 years) have a captured outcome; approval-rate figures reflect that sample and are still filling where coverage is partial.
Planning History
okApplications at this exact site plus the surrounding radius — outcomes, comparables and precedents.
Local planning authority public registers (via PlanNexus)
Constraints
okLive planning constraints present at the point — only what's actually there.
planning.data.gov.uk national datasets (OGL)
Lpa Performance
okHow this council actually performs — from government PS2 returns.
MHCLG planning statistics (PS2) — official
Appeals
okThe council's appeal record from Planning Inspectorate casework.
Planning Inspectorate appeal casework
Price Paid
okMarket context from HM Land Registry Price Paid.
HM Land Registry Price Paid Data
Flood
okEnvironment Agency flood zones — a miss is a positive answer, not a shrug.
Environment Agency Flood Map for Planning (OGL)
Brownfield
emptyBrownfield-register entries at the site.
“Site is not on a Brownfield Land Register.”
Brownfield Land Registers, planning.data.gov.uk (OGL)
Heritage
okListed buildings and heritage designations nearby.
Historic England — National Heritage List for England (© Historic England, Open Government Licence v3.0)
Parcel
okDerived land-parcel facts (identified / area) — never raw cadastral geometry.
HM Land Registry INSPIRE Index Polygons (derived facts only)
Epc
emptyThe property's Energy Performance Certificate where one exists (suppressible on request).
“no UPRN for this location — supply uprn= for an EPC match”
Energy Performance of Buildings data © Crown copyright (OGL v3.0, MHCLG)
Ownership
okArea-level ownership statistics from HM Land Registry — aggregates only, never names.
HM Land Registry CCOD/OCOD (Use land and property data licence)
Exactly what your integration receives — 40 KB of provenance-tagged JSON.
{
"schema_version": "2026-07-25",
"query": {
"input": {
"postcode": "HA7 2SN"
},
"match": "postcode",
"lat": null,
"lng": null,
"postcode": "HA7 2SN",
"uprn": null,
"authority_name": "Harrow",
"authority_gss": "E09000015"
},
"layers": {
"planning_history": {
"status": "ok",
"source": "Local planning authority public registers (via PlanNexus)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"nearby": {
"total": 213,
"approved": 128,
"refused": 52,
"decided": 180,
"approval_rate": 71,
"top_types": [
[
"Householder",
118
],
[
"Prior Notification - Larger Home Extension",
21
],
[
"Certificate Of Lawful Development Existing",
21
],
[
"Certificate Of Lawful Development Proposed",
15
],
[
"Full Planning Application",
12
]
],
"recent": [
{
"reference": "PL/1853/26",
"address": "1 Lansdowne Road, Stanmore, Harrow, HA7 2RX",
"description": "Front porch; Single storey side to rear extension; Alterations to roof of front extension; External alterations 1m high boundary wall to front and side; Landscaping to front and sides (Demolition of rear extensions)",
"application_type": "householder",
"inferred_category": "householder",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-07-08",
"date_validated": "2026-07-08",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233643"
},
{
"reference": "PL/1815/26",
"address": "56 Silverston Way, Stanmore, Harrow, HA7 4HR",
"description": "Single storey rear extension: 6.00 metres deep, 3.60 metres maximum height and 3.00 metres high to the eaves",
"application_type": "prior_approval",
"inferred_category": "householder",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-07-06",
"date_validated": "2026-07-06",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233611"
},
{
"reference": "PL/1811/26",
"address": "82 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SE",
"description": "Two storey side extension; single and two storey rear extensions; alterations and extension to roof to form end gables; rear dormer; three rooflights in front roof slope (Part demolition of roof)",
"application_type": "householder",
"inferred_category": "householder",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-07-03",
"date_validated": "2026-07-03",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233715"
},
{
"reference": "PL/1681/26",
"address": "12 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Details pursuant to Conditions 4 (Biodiversity Enhancement Plan) and 5 (Paving and maintenance plan, soakaway details, and materials) attached to planning reference PL/0925/26 dated 03/06/2026 for Single storey front extension incorporating porch; Single and two storey side to rear extension; Single storey rear extension; Rear dormer; Roof lights in front side and rear roof slopes (Demolition of conservatory; rear extension and detached garage to rear)",
"application_type": "discharge_conditions",
"inferred_category": "discharge_conditions",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-06-18",
"date_validated": "2026-06-18",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233647"
},
{
"reference": "PL/1660/26",
"address": "270 Whitchurch Lane, Edgware, Harrow, HA8 6QX",
"description": "Certificate of lawful development (existing): Use of property as house of multiple occupation for upto 6 persons (Use class C4)",
"application_type": "lawful_development",
"inferred_category": "lawful_development",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-06-16",
"date_validated": "2026-06-16",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233538"
},
{
"reference": "PL/1638/26",
"address": "391 Honeypot Lane, Stanmore, Harrow",
"description": "Advertisement Consent: Display of one internally illuminated fascia sign",
"application_type": "advertisement",
"inferred_category": "advertisement",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-06-15",
"date_validated": "2026-06-15",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233451"
},
{
"reference": "PL/1634/26",
"address": "73 Howberry Road, Edgware, Harrow, HA8 6TD",
"description": "Single storey rear extension: 8.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves",
"application_type": "prior_approval",
"inferred_category": "householder",
"status": "decided",
"decision": "refused",
"date_received": "2026-06-15",
"date_validated": "2026-06-15",
"decision_date": "2026-07-24",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233446"
},
{
"reference": "PL/1517/26",
"address": "20 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SF",
"description": "Single storey\nrear extension: 4.50 metres deep, 3.500 metres maximum height and 2.500 metres\nhigh to the eaves",
"application_type": "householder",
"inferred_category": "householder",
"status": "received",
"decision": null,
"date_received": "2026-06-05",
"date_validated": null,
"decision_date": null,
"source_url": null
},
{
"reference": "PL/1468/26",
"address": "25 Lansdowne Road, Stanmore, Harrow, HA7 2RX",
"description": "Front porch",
"application_type": "Householder",
"inferred_category": "householder",
"status": "received",
"decision": null,
"date_received": "2026-05-29",
"date_validated": "2026-06-23",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233673"
},
{
"reference": "PL/1022/26",
"address": "11 Cornbury Road, Edgware, Harrow, HA8 6RT",
"description": "Single storey side extension; Conversion of garage to habitable room; Replace garage door with window in front elevation; Alterations to garage roof to raise height; Single storey rear extension; Alterations to roof to form end gable and rear dormer; Roof lights in front roof slope; External alterations",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-23",
"date_validated": "2026-05-18",
"decision_date": "2026-07-13",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233229"
},
{
"reference": "PL/1202/26",
"address": "82 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SE",
"description": "Conversion of garage into habitable room; first floor side to rear extension; external alterations",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-13",
"date_validated": "2026-04-30",
"decision_date": "2026-06-25",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233136"
},
{
"reference": "PL/1191/26",
"address": "82 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SE",
"description": "Alterations and extension to roof to form end gables; rear dormer; three roof lights in front roof slope",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-06",
"date_validated": "2026-04-30",
"decision_date": "2026-06-25",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233117"
}
]
},
"comparables": {
"type": "householder",
"type_label": "householder works (extension, loft, alterations)",
"total": 132,
"approved": 90,
"refused": 22,
"withdrawn": 3,
"pending": 17,
"approval_pct": 80,
"median_weeks": 8,
"duration_n": 125,
"exemplars": [
{
"reference": "PL/1634/26",
"address": "73 Howberry Road, Edgware, Harrow, HA8 6TD",
"description": "Single storey rear extension: 8.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves",
"application_type": "prior_approval",
"inferred_category": "householder",
"status": "decided",
"decision": "refused",
"date_received": "2026-06-15",
"date_validated": "2026-06-15",
"decision_date": "2026-07-24",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233446"
},
{
"reference": "PL/1022/26",
"address": "11 Cornbury Road, Edgware, Harrow, HA8 6RT",
"description": "Single storey side extension; Conversion of garage to habitable room; Replace garage door with window in front elevation; Alterations to garage roof to raise height; Single storey rear extension; Alterations to roof to form end gable and rear dormer; Roof lights in front roof slope; External alterations",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-23",
"date_validated": "2026-05-18",
"decision_date": "2026-07-13",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233229"
},
{
"reference": "PL/1202/26",
"address": "82 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SE",
"description": "Conversion of garage into habitable room; first floor side to rear extension; external alterations",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-13",
"date_validated": "2026-04-30",
"decision_date": "2026-06-25",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233136"
},
{
"reference": "PL/1191/26",
"address": "82 Cheyneys Avenue, Canons Park, Edgware, Harrow, HA8 6SE",
"description": "Alterations and extension to roof to form end gables; rear dormer; three roof lights in front roof slope",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-05-06",
"date_validated": "2026-04-30",
"decision_date": "2026-06-25",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233117"
}
]
},
"site_history": {
"scope": "postcode",
"rows": [
{
"reference": "PL/1681/26",
"address": "12 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Details pursuant to Conditions 4 (Biodiversity Enhancement Plan) and 5 (Paving and maintenance plan, soakaway details, and materials) attached to planning reference PL/0925/26 dated 03/06/2026 for Single storey front extension incorporating porch; Single and two storey side to rear extension; Single storey rear extension; Rear dormer; Roof lights in front side and rear roof slopes (Demolition of conservatory; rear extension and detached garage to rear)",
"application_type": "discharge_conditions",
"inferred_category": "discharge_conditions",
"status": "pending_consideration",
"decision": null,
"date_received": "2026-06-18",
"date_validated": "2026-06-18",
"decision_date": null,
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=233647"
},
{
"reference": "PL/0925/26",
"address": "12 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front extension incorporating porch; Single and two storey side to rear extension; Single storey rear extension; Rear dormer; Roof lights in front side and rear roof slopes (Demolition of conservatory; rear extension and detached garage to rear)",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2026-04-02",
"date_validated": "2026-04-08",
"decision_date": "2026-06-03",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=232895"
},
{
"reference": "PL/0926/26",
"address": "12 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Certificate of Lawful Development (Proposed): Single storey outbuilding in rear garden",
"application_type": "Certificate of Lawful Development Proposed",
"inferred_category": "lawful_development",
"status": "decided",
"decision": "approved",
"date_received": "2026-04-02",
"date_validated": "2026-04-02",
"decision_date": "2026-05-28",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=232885"
},
{
"reference": "PL/3309/25/PRIOR",
"address": "Former National Grid Site, Marsh Lane, Stanmore, HA7 2SN",
"description": "Prior Approval for Demolition of both buildings located at the Former Marsh Lane Gas Works",
"application_type": "Notification of Demolition",
"inferred_category": "prior_approval",
"status": "decided",
"decision": "not_required",
"date_received": "2025-12-19",
"date_validated": "2025-12-19",
"decision_date": "2026-01-15",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=232031"
},
{
"reference": "PL/1432/25",
"address": "13 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "First floor side to rear extension, Alterations and extension to roof to form rear dormer, Roof lights in front and side roof slopes",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2025-06-03",
"date_validated": "2025-06-30",
"decision_date": "2025-08-22",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=230622"
},
{
"reference": "PL/1370/25",
"address": "Former National Grid Site, Marsh Lane, Stanmore, HA7 2SN",
"description": "The construction of a new food retail store, comprising the erection of a part one and two storey building of Class E(a) floorspace, including a warehouse, ancillary staff facilities, access, car and cycle parking, landscaping and associated works",
"application_type": "Full Planning Application",
"inferred_category": null,
"status": "decided",
"decision": "refused",
"date_received": "2025-05-27",
"date_validated": "2025-05-30",
"decision_date": "2025-09-05",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=230277"
},
{
"reference": "PL/2948/24",
"address": "CEDAR HOUSE Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front extension incorporating porch, Conversion of garage to habitable room, Single and two storey rear extension, Single storey detached outbuilding for use as an Office/Gym",
"application_type": "Householder",
"inferred_category": null,
"status": "withdrawn",
"decision": "withdrawn",
"date_received": "2024-10-30",
"date_validated": "2024-12-13",
"decision_date": "2025-02-17",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=228894"
},
{
"reference": "PL/0615/24",
"address": "CEDAR HOUSE Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front infill extension incorporating porch; conversion of garage to habitable room; single and two storey rear extension; outbuilding in rear garden",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2024-03-07",
"date_validated": "2024-03-07",
"decision_date": "2024-05-02",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=226633"
},
{
"reference": "P/0206/23",
"address": "LITTLECOT Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey rear extension; external alterations",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2023-01-23",
"date_validated": "2023-04-17",
"decision_date": "2023-06-07",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=163588"
},
{
"reference": "P/0960/21",
"address": "15 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey side to rear extension",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2021-03-09",
"date_validated": "2021-03-22",
"decision_date": "2021-10-29",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=160391"
},
{
"reference": "P/2170/19",
"address": "13 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Details pursuant to Conditions 6 (Sewage disposal) and 7 (Surface water disposal) attached to planning permission P/5285/18 dated 24.1.19 for Single storey front, side and rear extension (demolition of side extension)",
"application_type": "Prior Approval (Miscellaneous Acts)",
"inferred_category": "discharge_conditions",
"status": "decided",
"decision": "approved",
"date_received": "2019-05-13",
"date_validated": "2019-05-17",
"decision_date": "2019-07-16",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=200349"
},
{
"reference": "P/0479/19",
"address": "14 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front extension incorporating front porch; single storey side to rear extension (demolition of garage, store and conservatory)",
"application_type": "Householder",
"inferred_category": null,
"status": "decided",
"decision": "refused",
"date_received": "2019-02-01",
"date_validated": "2019-02-20",
"decision_date": "2019-04-05",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=213465"
},
{
"reference": "P/5284/18",
"address": "13 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Certificate of lawful development (proposed): Alterations to roof to form end gable, rear dormer, two rooflights in front roofslope, window in side",
"application_type": "Certificate of Lawful Development Existing",
"inferred_category": "lawful_development",
"status": "decided",
"decision": "approved",
"date_received": "2018-11-29",
"date_validated": "2018-12-06",
"decision_date": "2019-01-24",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=147992"
},
{
"reference": "P/5285/18",
"address": "13 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front, side and rear extension (demolition of side extension)",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2018-11-29",
"date_validated": "2018-12-07",
"decision_date": "2019-01-24",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=147993"
},
{
"reference": "P/5112/18",
"address": "14 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front, two storey side to rear extension incorporating front porch, single storey rear extension, rear dormer; external alterations (demolition of attached garage, stores, rear extension and conservatory)",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2018-11-19",
"date_validated": "2018-11-22",
"decision_date": "2019-01-14",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=147936"
},
{
"reference": "P/4914/18",
"address": "14 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Certificate of Lawful Development (Proposed): Single storey rear extension (Following Established Prior Approval Ref.: P/4197/18/PRIOR)",
"application_type": "Certificate of Lawful Development Existing",
"inferred_category": "lawful_development",
"status": "decided",
"decision": "approved",
"date_received": "2018-11-07",
"date_validated": "2018-11-09",
"decision_date": "2018-12-31",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=147860"
},
{
"reference": "P/4197/18/PRIOR",
"address": "14 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single Storey Rear Extension: 6 metres deep, 3.40 metres maximum height, 3.00 metres high to the eaves",
"application_type": "Prior Notification - Larger Home Extension",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2018-09-17",
"date_validated": "2018-09-20",
"decision_date": "2018-10-29",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=147620"
},
{
"reference": "P/0973/18",
"address": "17 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey; side to rear extension; front porch",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2018-03-08",
"date_validated": "2018-11-26",
"decision_date": "2019-01-24",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=190059"
},
{
"reference": "P/2959/17",
"address": "17 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single storey front extension; single storey side to rear extension; front porch",
"application_type": "Householder",
"inferred_category": "householder",
"status": "decided",
"decision": "refused",
"date_received": "2017-06-20",
"date_validated": "2017-08-14",
"decision_date": "2017-09-26",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=199516"
},
{
"reference": "P/2380/16",
"address": "17 Green Verges, Stanmore, Harrow, HA7 2SN",
"description": "Single Storey Rear Extension: extending 6 metres beyond the original rear wall, 3 metres maximum height, 3 metres high to the eaves",
"application_type": "Prior Notification - Larger Home Extension",
"inferred_category": "householder",
"status": "decided",
"decision": "approved",
"date_received": "2016-05-09",
"date_validated": "2016-05-18",
"decision_date": "2016-06-22",
"source_url": "https://planningsearch.harrow.gov.uk/planning/index.html?fa=getApplication&id=157188"
}
]
}
},
"note": null
},
"constraints": {
"status": "ok",
"source": "planning.data.gov.uk national datasets (OGL)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"conservation_area": {
"present": false,
"label": null,
"count": 0
},
"listed_building": {
"present": false,
"label": null,
"count": 0
},
"article_4_direction_area": {
"present": false,
"label": null,
"count": 0
},
"tree_preservation_zone": {
"present": false,
"label": null,
"count": 0
},
"scheduled_monument": {
"present": false,
"label": null,
"count": 0
},
"flood_risk_zone": {
"present": false,
"label": null,
"count": 0
},
"green_belt": {
"present": false,
"label": null,
"count": 0
},
"area_of_outstanding_natural_beauty": {
"present": false,
"label": null,
"count": 0
},
"world_heritage_site": {
"present": false,
"label": null,
"count": 0
},
"site_of_special_scientific_interest": {
"present": false,
"label": null,
"count": 0
}
},
"note": null
},
"lpa_performance": {
"status": "ok",
"source": "MHCLG planning statistics (PS2) — official",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"gss_code": "E09000015",
"name": "Harrow",
"region": "London",
"covered": true,
"period": "2025 Q2 – 2026 Q1",
"source": "MHCLG planning statistics (PS2), release 202603",
"approval_rate": {
"value": 0.7759,
"national_avg": 0.8707,
"regional_avg": 0.8232,
"rank": 289,
"ranked_of": 310,
"percentile": 6.8
},
"speed": {
"value": 0.909,
"national_avg": 0.904,
"regional_avg": 0.9124,
"rank": 187,
"ranked_of": 310,
"percentile": 39.8
},
"decisions": {
"value": 1330,
"national_avg": 962,
"regional_avg": 1554,
"rank": 59,
"ranked_of": 310,
"percentile": 81.2
},
"refusal_rate": {
"value": 0.2241,
"national_avg": 0.1293,
"regional_avg": 0.1768,
"rank": null,
"ranked_of": null,
"percentile": null
},
"by_type": [
{
"dev_type": "major",
"decisions": 13,
"approval_rate": 0.6154,
"speed": 0.9231
},
{
"dev_type": "minor",
"decisions": 332,
"approval_rate": 0.6476,
"speed": 0.8554
},
{
"dev_type": "other",
"decisions": 985,
"approval_rate": 0.8213,
"speed": 0.9269
}
]
},
"note": null
},
"appeals": {
"status": "ok",
"source": "Planning Inspectorate appeal casework",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"gss_code": "E09000015",
"name": "London Borough of Harrow",
"window": "appeals decided Jul 2021 – May 2026",
"source": "HM Planning Inspectorate casework data (OGL)",
"total_appeals": 680,
"decided": 605,
"allowed": 220,
"dismissed": 385,
"overturn_rate": 0.3636,
"national_overturn_rate": 0.3211,
"rank": 247,
"ranked_of": 316,
"percentile": 21.9,
"by_procedure": [
{
"procedure": "Written Representations",
"decided": 596,
"allowed": 218,
"overturn_rate": 0.3658
},
{
"procedure": "Hearing",
"decided": 5,
"allowed": 1,
"overturn_rate": 0.2
},
{
"procedure": "Inquiry",
"decided": 4,
"allowed": 1,
"overturn_rate": 0.25
}
],
"trend": [
{
"year": 2016,
"decided": 216,
"allowed": 86,
"overturn_rate": 0.3981
},
{
"year": 2017,
"decided": 420,
"allowed": 158,
"overturn_rate": 0.3762
},
{
"year": 2018,
"decided": 296,
"allowed": 100,
"overturn_rate": 0.3378
},
{
"year": 2019,
"decided": 418,
"allowed": 146,
"overturn_rate": 0.3493
},
{
"year": 2020,
"decided": 256,
"allowed": 86,
"overturn_rate": 0.3359
},
{
"year": 2021,
"decided": 164,
"allowed": 58,
"overturn_rate": 0.3537
},
{
"year": 2022,
"decided": 122,
"allowed": 40,
"overturn_rate": 0.3279
},
{
"year": 2023,
"decided": 169,
"allowed": 71,
"overturn_rate": 0.4201
},
{
"year": 2024,
"decided": 116,
"allowed": 48,
"overturn_rate": 0.4138
},
{
"year": 2025,
"decided": 107,
"allowed": 31,
"overturn_rate": 0.2897
},
{
"year": 2026,
"decided": 41,
"allowed": 12,
"overturn_rate": 0.2927
}
]
},
"note": null
},
"price_paid": {
"status": "ok",
"source": "HM Land Registry Price Paid Data",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"name": "Harrow",
"trend": [
{
"year": 2016,
"median_price": 460000,
"transactions": 2245
},
{
"year": 2017,
"median_price": 500000,
"transactions": 1990
},
{
"year": 2018,
"median_price": 471500,
"transactions": 2112
},
{
"year": 2019,
"median_price": 455000,
"transactions": 2303
},
{
"year": 2020,
"median_price": 478950,
"transactions": 1877
},
{
"year": 2021,
"median_price": 525000,
"transactions": 2502
},
{
"year": 2022,
"median_price": 530000,
"transactions": 2087
},
{
"year": 2023,
"median_price": 525000,
"transactions": 1655
},
{
"year": 2024,
"median_price": 550000,
"transactions": 1705
},
{
"year": 2025,
"median_price": 550000,
"transactions": 1608
}
],
"source": "HM Land Registry Price Paid (England & Wales, OGL)",
"window": "standard sales, 12 months to 2026-05",
"by_type": [
{
"median_price": 955000,
"transactions": 134,
"property_type": "detached"
},
{
"median_price": 650000,
"transactions": 411,
"property_type": "semi_detached"
},
{
"median_price": 571250,
"transactions": 288,
"property_type": "terraced"
},
{
"median_price": 334400,
"transactions": 423,
"property_type": "flat"
}
],
"gss_code": "E09000015",
"yoy_change": 0.0182,
"median_price": 560000,
"transactions_12mo": 1256,
"median_price_prior_12mo": 550000
},
"note": null
},
"flood": {
"status": "ok",
"source": "Environment Agency Flood Map for Planning (OGL)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"in_flood_zone": false,
"highest_zone": null,
"note": "Site is not within EA Flood Zone 2 or 3."
},
"note": null
},
"brownfield": {
"status": "empty",
"source": "Brownfield Land Registers, planning.data.gov.uk (OGL)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": null,
"note": "Site is not on a Brownfield Land Register."
},
"heritage": {
"status": "ok",
"source": "Historic England — National Heritage List for England (© Historic England, Open Government Licence v3.0)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"listed_buildings": null,
"other_designations": [
{
"name": "CANONS PARK",
"type": "Registered Park or Garden",
"distance_m": 310
}
]
},
"note": null
},
"parcel": {
"status": "ok",
"source": "HM Land Registry INSPIRE Index Polygons (derived facts only)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"identified": false,
"nearby_parcel_count": 27
},
"note": null
},
"epc": {
"status": "empty",
"source": "Energy Performance of Buildings data © Crown copyright (OGL v3.0, MHCLG)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": null,
"note": "no UPRN for this location — supply uprn= for an EPC match"
},
"ownership": {
"status": "ok",
"source": "HM Land Registry CCOD/OCOD (Use land and property data licence)",
"retrieved_at": "2026-07-27T19:17:11.437871Z",
"data": {
"scope": "authority_area",
"total_titles": 14396,
"overseas_titles": 395,
"overseas_pct": 2.7,
"freehold": 9236,
"leasehold": 5160,
"top_overseas_countries": [
{
"country": "JERSEY",
"titles": 127
},
{
"country": "BRITISH VIRGIN ISLANDS",
"titles": 113
},
{
"country": "ISLE OF MAN",
"titles": 42
},
{
"country": "GUERNSEY",
"titles": 35
},
{
"country": "SEYCHELLES",
"titles": 11
}
],
"note": "Area-level corporate-ownership statistics (HM Land Registry CCOD/OCOD)."
},
"note": null
}
},
"coverage": {
"outcome_capture": "high",
"note": "100% of this authority's decided applications (last 3 years) have a captured outcome; approval-rate figures reflect that sample and are still filling where coverage is partial."
},
"attribution": [
"Contains public sector information licensed under the Open Government Licence v3.0.",
"Planning application data compiled by PlanNexus from LPA public registers.",
"Energy Performance of Buildings data © Crown copyright and database right (MHCLG).",
"HM Land Registry data © Crown copyright and database right."
],
"generated_at": "2026-07-27T19:17:11.437871Z"
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