Rear extensions in Thurrock
3,220 applications since 2020. 1,949 approved and 663 refused. Refused: about 1 in 4 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 | 317 | 170 | 35 |
| 2025 | 384 | 251 | 65 |
| 2024 | 356 | 237 | 59 |
| 2023 | 391 | 263 | 76 |
| 2022 | 531 | 332 | 103 |
| 2021 | 730 | 402 | 184 |
| 2020 | 511 | 294 | 141 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Afroze Khan Design Studio | 35 | 37 |
| ONE Design & Planning Ltd | 27 | 28 |
| DSB Property Designs Ltd | 26 | 30 |
| Build On Architects | 17 | 19 |
| James Ware & Associates Ltd | 17 | 17 |
| Maplin Engineering Limited | 14 | 15 |
| Lotus Plan Design Build Ltd | 12 | 13 |
| Ar. Design & Construction Ltd | 10 | 14 |
| A9 Architecture | 9 | 11 |
| Maplin Studio Limited | 9 | 9 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Basildon | 3,804 | 746 | about 1 in 6 |
| Bexley | 7,620 | 1,664 | about 1 in 6 |
| Brentwood | 13,012 | 2,516 | about 1 in 6 |
| Castle Point | 2,485 | 661 | about 1 in 5 |
| Dartford | 2,723 | 342 | about 1 in 9 |
| Gravesham | 11,028 | 2,101 | about 1 in 6 |
| Havering | 19,872 | 3,447 | about 1 in 7 |
| Medway | 2,796 | 342 | about 1 in 9 |