Garden rooms and outbuildings in Kensington
2,238 applications since 2019. 1,616 approved and 169 refused. Refused: about 1 in 11 here, about 1 in 7 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Single storey, not in front of the house
- No higher than 2.5 m within 2 m of a boundary; otherwise 4 m with a dual-pitched roof or 3 m any other
- Together with other buildings, no more than half the garden and grounds
- For use incidental to the house, not a separate home
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 | 172 | 101 | 5 |
| 2025 | 242 | 200 | 7 |
| 2024 | 294 | 214 | 30 |
| 2023 | 321 | 218 | 40 |
| 2022 | 300 | 233 | 13 |
| 2021 | 310 | 219 | 25 |
| 2020 | 294 | 213 | 21 |
| 2019 | 305 | 218 | 28 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Brent | 3,701 | 1,608 | about 1 in 3 |
| Hammersmith and Fulham | 3,420 | 785 | about 1 in 5 |
| Old Oak Park Royal | 1 | 0 | none |
| Wandsworth | 1,968 | 186 | about 1 in 12 |
| Westminster | 1,540 | 182 | about 1 in 9 |