Rear extensions in Winchester
2,308 applications since 2020. 2,031 approved and 46 refused. Refused: about 1 in 45 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 | 228 | 158 | 8 |
| 2025 | 286 | 255 | 6 |
| 2024 | 275 | 245 | 3 |
| 2023 | 298 | 267 | 12 |
| 2022 | 362 | 333 | 5 |
| 2021 | 462 | 415 | 9 |
| 2020 | 397 | 358 | 3 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| MDT Design | 76 | 76 |
| C3 Design Limited | 32 | 32 |
| King Architecture & Design | 29 | 29 |
| J Design & Planning Ltd | 28 | 29 |
| Storyboard Architects Ltd | 24 | 24 |
| L.M.D. Designs Ltd. | 23 | 23 |
| T2 architects | 23 | 23 |
| Summertree Architects Limited | 20 | 20 |
| PMG Building Design&Consultancy Ltd | 16 | 17 |
| C.P. Architectural Ltd | 13 | 13 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Basingstoke | 3,985 | 171 | about 1 in 24 |
| Havant | 0 | 0 | none |
| Test Valley | 1,679 | 80 | about 1 in 22 |