Rear extensions in South Somerset
1,670 applications since 2020. 1,389 approved and 52 refused. Refused: about 1 in 28 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 | 129 | 80 | 8 |
| 2025 | 195 | 169 | 8 |
| 2024 | 197 | 173 | 6 |
| 2023 | 232 | 205 | 2 |
| 2022 | 311 | 261 | 9 |
| 2021 | 327 | 268 | 11 |
| 2020 | 279 | 233 | 8 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Paul Day Architectural Designs | 57 | 57 |
| Alex Ravelo Design | 55 | 55 |
| Scope Architectural | 46 | 46 |
| Tj Hawkins Architectural Design Consultants | 29 | 31 |
| Tandem Architects | 27 | 27 |
| Ian Pamplin Architecture | 20 | 20 |
| Tor Architectural Services | 15 | 15 |
| Hill Reading Architects | 13 | 15 |
| Whiteacre Planning Ltd | 12 | 15 |
| Barry Buckley Architectural Services | 10 | 10 |