Harrow Council approves 80.6% of planning applications, based on 12,600 real decisions analysed from the council’s public planning portal. The national average across all councils tracked by PlanningLens is 87.9%. Harrow sits 7.3 percentage points below the national average.
Enter your postcode for a personalised approval likelihood score — 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 | 6,538 | 1,287 | 7,825 | 83.6% |
| Full | 2,792 | 858 | 3,650 | 76.5% |
| Prior Approval | 830 | 295 | 1,125 | 73.8% |
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.
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 | 484 | 160 | 644 | 75.2% |
| Pinner South | 447 | 136 | 583 | 76.7% |
| GREENHILL | 526 | 38 | 564 | 93.3% |
| Marlborough | 390 | 86 | 476 | 81.9% |
| Hatch End | 364 | 99 | 463 | 78.6% |
| Harrow Weald | 333 | 117 | 450 | 74.0% |
| Greenhill | 316 | 104 | 420 | 75.2% |
| Roxeth | 302 | 117 | 419 | 72.1% |
| Harrow on the Hill | 304 | 101 | 405 | 75.1% |
| Edgware | 280 | 123 | 403 | 69.5% |
| Canons | 289 | 111 | 400 | 72.2% |
| Belmont | 261 | 100 | 361 | 72.3% |
| MARLBOROUGH | 314 | 21 | 335 | 93.7% |
| Kenton East | 248 | 73 | 321 | 77.3% |
| Stanmore | 228 | 87 | 315 | 72.4% |
| Headstone | 228 | 61 | 289 | 78.9% |
| Centenary | 213 | 68 | 281 | 75.8% |
| Kenton West | 232 | 48 | 280 | 82.9% |
| Rayners Lane | 176 | 71 | 247 | 71.3% |
| STANMORE PARK | 231 | 16 | 247 | 93.5% |
| CANONS | 221 | 17 | 238 | 92.9% |
| North Harrow | 184 | 52 | 236 | 78.0% |
| HARROW ON THE HILL | 206 | 21 | 227 | 90.7% |
| West Harrow | 165 | 59 | 224 | 73.7% |
| WEALDSTONE | 201 | 13 | 214 | 93.9% |
Showing top 25 of 48 wards by volume. Your Pro Report includes the full ward breakdown.
See full ward breakdown →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/0911/25 Pinner South | Front porch, Conversion of garage to habitable room, Alterations to roof of gara | Approved |
| PL/0920/25 Pinner South | Single storey side to rear extension (Demolition of side extension) | Approved |
| PL/0883/25 Stanmore | Single storey side to rear extension | Approved |
| PL/0900/25 Headstone | Single storey front extension incorporating porch, Single storey side to rear ex | Approved |
| PL/0772/25 Roxeth | Alterations to roof to form end gable and rear dormer, Window in end gable, Roof | Approved |
| PL/1039/25 Roxeth | Single storey side to rear extension (Demolition of attached garage and rear ext | Approved |
| PL/1380/24 Roxeth | Replacement windows | Approved |
| PL/0821/25 Harrow Weald | Two storey front extension incorporating porch, Conversion of garage to habitabl | Approved |
| PL/0879/25 Pinner | Front porch, Conversion of garage to utility room, First floor rear extension, A | Approved |
| PL/0884/25 Kenton West | Single storey front extension incorporating porch, Single storey side extension, | Approved |
Find out what actually gets approved near your address first. Your Pro Report analyses the 20 nearest decisions to your property, ward-specific refusal patterns, and extension-by-extension approval patterns. Based on Harrow's 12,600 real decisions. Delivered by email in minutes.
Get My Pro Report — £79Compare 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:
Based on 12,600 planning decisions, the overall approval rate in Harrow is 80.6%. The national average across councils tracked by PlanningLens is 87.9%. However, rates vary significantly by ward and application type.
PlanningLens has analysed 12,600 planning decisions from Harrow council. 10,160 were approved and 2,440 were refused. These figures cover decisions from January 2020 to the present.
The average approval rate in Harrow is 80.6%, but outcomes depend heavily on your specific ward, the type of extension or development you are proposing, and local planning policy. Use the PlanningLens free postcode check to get a personalised score.