Side extensions in Sutton
4,046 applications since 2019. 2,935 approved and 859 refused. Refused: about 1 in 4 here, about 1 in 7 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Single storey, no higher than 4 m
- No wider than half the width of the original house
- Not facing a road
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 | 272 | 182 | 28 |
| 2025 | 391 | 328 | 48 |
| 2024 | 456 | 350 | 78 |
| 2023 | 524 | 374 | 135 |
| 2022 | 664 | 452 | 182 |
| 2021 | 680 | 480 | 162 |
| 2020 | 555 | 392 | 120 |
| 2019 | 504 | 377 | 106 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Croydon | 7,496 | 1,834 | about 1 in 5 |
| Epsom and Ewell | 0 | 0 | none |
| Kingston | 3,936 | 1,146 | about 1 in 4 |
| Merton | 2,500 | 397 | about 1 in 7 |
| Reigate | 2,406 | 275 | about 1 in 10 |