Loft conversions and dormers in Kensington
2,453 applications since 2019. 1,679 approved and 264 refused. Refused: about 1 in 7 here, about 1 in 6 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Up to 40 cubic metres of extra roof space on a terrace, 50 on a semi or detached house
- Not on the roof slope facing a road, and no higher than the existing roof
- Materials similar in appearance, set back about 0.2 m from the eaves, and side windows obscure-glazed
England, houses only. Flats, listed buildings, conservation areas and Article 4 directions change this. The full rules.
Year by year
| Year | Applications | Approved | Refused |
|---|---|---|---|
| 2026 | 196 | 113 | 9 |
| 2025 | 290 | 226 | 8 |
| 2024 | 380 | 260 | 27 |
| 2023 | 381 | 239 | 67 |
| 2022 | 324 | 230 | 29 |
| 2021 | 324 | 225 | 46 |
| 2020 | 249 | 163 | 41 |
| 2019 | 309 | 223 | 37 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Brent | 5,678 | 1,834 | about 1 in 4 |
| Hammersmith and Fulham | 16,719 | 2,396 | about 1 in 8 |
| Old Oak Park Royal | 7 | 0 | none |
| Wandsworth | 4,793 | 497 | about 1 in 11 |
| Westminster | 2,769 | 403 | about 1 in 8 |