Loft conversions and dormers in Brentwood
6,150 applications since 1989. 4,572 approved and 1,247 refused. Refused: about 1 in 5 here, about 1 in 6 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Up to 40 cubic metres of extra roof space on a terrace, 50 on a semi or detached house
- Not on the roof slope facing a road, and no higher than the existing roof
- Materials similar in appearance, set back about 0.2 m from the eaves, and side windows obscure-glazed
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 | 152 | 100 | 14 |
| 2025 | 205 | 168 | 27 |
| 2024 | 182 | 136 | 37 |
| 2023 | 184 | 146 | 32 |
| 2022 | 267 | 200 | 48 |
| 2021 | 341 | 251 | 65 |
| 2020 | 259 | 163 | 75 |
| 2019 | 262 | 196 | 53 |
| 2018 | 329 | 246 | 69 |
| 2017 | 298 | 225 | 56 |
| 2016 | 275 | 207 | 56 |
| 2015 | 224 | 151 | 60 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Andrew Davison Architects | 43 | 52 |
| Spatial Design Architects | 20 | 23 |
| RJB Architect Ltd | 16 | 21 |
| M P Chartered Architects | 13 | 13 |
| e+m design partnership | 8 | 9 |
| Design Consultancy | 7 | 7 |
| RSP Design | 6 | 7 |
| Blackmore Design Ltd | 5 | 8 |
| Blue Lava Architecture Ltd. | 5 | 6 |
| njrouse architectural design | 5 | 5 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Basildon | 1,432 | 425 | about 1 in 4 |
| Epping Forest | 0 | 0 | none |
| Havering | 4,808 | 1,954 | about 1 in 3 |
| Thurrock | 998 | 274 | about 1 in 5 |