Rear extensions in Hammersmith and Fulham
44,490 applications since 1979. 35,805 approved and 4,744 refused. Refused: about 1 in 9 here, about 1 in 7 across the councils we cover.
Last updated 8 November 2026.
Without planning permission
- Up to 3 m deep on a terrace or semi, 4 m on a detached house
- Up to 6 m or 8 m through the neighbour-consultation route, not on protected land
- No higher than 4 m, and eaves no higher than 3 m within 2 m of a boundary
- Together with other buildings, no more than half the garden and grounds
- Materials similar in appearance to the house
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 | 512 | 235 | 7 |
| 2025 | 731 | 645 | 24 |
| 2024 | 733 | 623 | 44 |
| 2023 | 787 | 635 | 63 |
| 2022 | 943 | 756 | 79 |
| 2021 | 1,144 | 907 | 121 |
| 2020 | 889 | 686 | 107 |
| 2019 | 936 | 765 | 94 |
| 2018 | 1,108 | 913 | 104 |
| 2017 | 1,429 | 1,111 | 185 |
| 2016 | 1,715 | 1,348 | 225 |
| 2015 | 1,961 | 1,546 | 228 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Brent | 9,258 | 3,922 | about 1 in 3 |
| Ealing | 33,271 | 9,518 | about 1 in 4 |
| Hounslow | 22,712 | 9,765 | about 1 in 3 |
| Kensington | 5,842 | 645 | about 1 in 10 |
| Old Oak Park Royal | 9 | 0 | none |
| Richmond | 7,397 | 1,752 | about 1 in 5 |
| Wandsworth | 8,539 | 720 | about 1 in 13 |