Rear extensions in Surrey Heath
2,677 applications since 2020. 2,095 approved and 301 refused. Refused: about 1 in 8 here, about 1 in 7 across the councils we cover.
Last updated 9 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 | 271 | 192 | 22 |
| 2025 | 312 | 261 | 30 |
| 2024 | 320 | 264 | 33 |
| 2023 | 369 | 287 | 48 |
| 2022 | 439 | 318 | 72 |
| 2021 | 513 | 420 | 42 |
| 2020 | 453 | 353 | 54 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Award Design | 95 | 101 |
| M3 Architectural Design Ltd | 59 | 68 |
| Planning & Building Drawings Ltd | 39 | 47 |
| Mike Beck Design Ltd | 32 | 36 |
| Milburn Designs | 26 | 29 |
| Inception Planning Limited | 23 | 27 |
| Cranford Design Ltd | 22 | 22 |
| Surrey Building Services | 18 | 24 |
| MJH Architects | 13 | 14 |
| MB Design Services | 13 | 13 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Guildford | 3,880 | 818 | about 1 in 6 |
| Runnymede | 2,034 | 335 | about 1 in 7 |
| Woking | 2,889 | 541 | about 1 in 6 |