Rear extensions in Northumberland (Park)
53 applications since 2020. 41 approved and 1 refused. Refused: about 1 in 42 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 | 3 | 1 | 0 |
| 2025 | 13 | 12 | 1 |
| 2024 | 4 | 4 | 0 |
| 2023 | 4 | 2 | 0 |
| 2022 | 2 | 2 | 0 |
| 2021 | 14 | 11 | 0 |
| 2020 | 13 | 9 | 0 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Carlisle | 1,114 | 14 | about 1 in 81 |