Harrow Council approves 75.9% of planning applications, based on 22,332 real decisions analysed from the council’s public planning portal. The national average across all councils tracked by PlanningLens is 88.6%. Harrow sits 12.7 percentage points below the national average.
According to PlanningLens analysis of 2,426 decided applications, Harrow Council approved 81.4% of planning applications in 2025. Across 22,332 decisions on record (July 2019 to September 2026), the overall approval rate in Harrow is 75.9%; the national average across UK councils tracked by PlanningLens is 88.6%.
Source: PlanningLens (planninglens.co.uk) analysis of Harrow council planning portal records · Data to 7 September 2026 · Quote freely with attribution
Enter your postcode for a free, personalised approval pattern report, based on your ward and application type.
Not all applications are treated equally. Extension types, listed building consent, and change of use applications each have very different success rates in Harrow.
| Application Type | Approved | Refused | Total | Rate |
|---|---|---|---|---|
| Other | 16,953 | 5,379 | 22,332 | 75.9% |
A loft conversion in one ward can have a 90% approval rate. In the next ward, 55%. The free check tells you which side you're on, your free property report is emailed in minutes.
Check My PostcodeWard-level data reveals where planning applications are most and least likely to succeed. Officers, local policies, and neighbourhood character all play a role.
| Ward | Approved | Refused | Total | Rate |
|---|---|---|---|---|
| Pinner | 1,081 | 333 | 1,414 | 76.4% |
| Pinner South | 1,078 | 311 | 1,389 | 77.6% |
| Marlborough | 1,022 | 245 | 1,267 | 80.7% |
| Harrow Weald | 859 | 309 | 1,168 | 73.5% |
| Hatch End | 922 | 237 | 1,159 | 79.6% |
| Harrow on the Hill | 838 | 245 | 1,083 | 77.4% |
| Greenhill | 820 | 257 | 1,077 | 76.1% |
| Canons | 771 | 273 | 1,044 | 73.9% |
| Roxeth | 770 | 273 | 1,043 | 73.8% |
| Belmont | 741 | 255 | 996 | 74.4% |
| Edgware | 657 | 282 | 939 | 70.0% |
| Kenton West | 704 | 172 | 876 | 80.4% |
| Kenton East | 653 | 186 | 839 | 77.8% |
| Rayners Lane | 605 | 201 | 806 | 75.1% |
| West Harrow | 555 | 160 | 715 | 77.6% |
| Stanmore Park | 460 | 168 | 628 | 73.2% |
| Stanmore | 466 | 152 | 618 | 75.4% |
| Roxbourne | 432 | 172 | 604 | 71.5% |
| Headstone North | 416 | 136 | 552 | 75.4% |
| Headstone | 434 | 115 | 549 | 79.1% |
| Headstone South | 391 | 140 | 531 | 73.6% |
| Queensbury | 384 | 113 | 497 | 77.3% |
| Wealdstone | 349 | 148 | 497 | 70.2% |
| Centenary | 375 | 119 | 494 | 75.9% |
| North Harrow | 363 | 103 | 466 | 77.9% |
Showing top 25 of 27 wards by volume. Your free property report includes the full ward breakdown.
See full ward breakdown →How Harrow’s planning approval rate has changed year by year, up 5.8pp since 2019.
Bar height reflects approval rate. Colour: green ≥85%, amber ≥70%, red below 70%.
Real residential planning decisions from Harrow council. Each reference links to the council's own planning portal so you can verify the details yourself.
| Reference | Proposal | Decision |
|---|---|---|
| PL/1994/26 Kenton West | Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 2 | Approved |
| PL/1890/26 Harrow Weald | Single storey front extension incorporating front porch, single and two storey s | Refused |
| PL/1884/26 Canons | Single storey front extension; two storey side extension; single storey rear ext | Approved |
| PL/1875/26 Pinner | Alterations and extension to roof to form end gables; rear dormer; window in end | Approved |
| PL/1728/26 Pinner South | Conversion of garage to habitable room; single storey rear extension; external a | Approved |
| PL/1719/26 North Harrow | Single storey rear extension; conversion of garage into habitable room with inst | Approved |
| PL/1463/26 Stanmore | Conversion of dwelling into three flats (1 X 1 bed, 1 X 2 bed and 1 X 3 bed); tw | Approved |
| PL/1819/26 Hatch End | Single storey glass conservatory to rear | Approved |
| PL/1751/26 Roxeth | Single storey rear extension; external alterations; conversion of dwellinghouse | Refused |
| PL/1585/26 Harrow Weald | Conversion of garage to habitable room including raising roof height | Approved |
Find out what actually gets approved near your address first. Your free property report analyses the 20 nearest decisions to your property, ward-specific refusal patterns, and extension-by-extension approval patterns. Based on Harrow's 22,332 real decisions. Free, emailed in minutes.
Check my postcodeCompare Harrow's planning approval rates with neighbouring areas:
Dig deeper into Harrow's planning statistics, by ward, extension type, or project category:
Data-driven guides to help you understand planning approval patterns:
Yes. PlanningLens offers a free planning permission check for Harrow. Enter your postcode to instantly see approval rates for your ward and application type, based on 22,332 real decisions from Harrow council. The full property-specific report is also free and emailed within minutes.
Enter your postcode on PlanningLens for a free instant check based on Harrow's real planning decisions. The free property report goes further: it analyses the 20 nearest comparable decisions to your property, ward-level refusal patterns, and approval rates by application type. Free and emailed within minutes.
Based on 22,332 planning decisions, the overall approval rate in Harrow is 75.9%. The national average across councils tracked by PlanningLens is 88.6%. Rates vary significantly by ward and application type.
PlanningLens has analysed 22,332 planning decisions from Harrow council. 16,953 were approved and 5,379 were refused. These figures cover every decision on record for the council, July 2019 to September 2026.
The average approval rate in Harrow is 75.9%, but outcomes depend heavily on your specific ward, the type of extension or development you are proposing, and local planning policy. Use the free PlanningLens postcode check to get a personalised score.
Writing about planning in Harrow? These figures are free to republish with attribution. Copy the one-line citation, or paste the stat box into any website, CMS or newsletter, it carries its own styling and links back to this page for verification.