Loft conversions and dormers in Plymouth
604 applications since 2020. 499 approved and 23 refused. Refused: about 1 in 23 here, about 1 in 6 across the councils we cover.
Last updated 8 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 | 57 | 39 | 2 |
| 2025 | 63 | 49 | 4 |
| 2024 | 80 | 70 | 1 |
| 2023 | 85 | 73 | 2 |
| 2022 | 102 | 84 | 5 |
| 2021 | 113 | 100 | 2 |
| 2020 | 104 | 84 | 7 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Mike Leggett Building Plans Ltd | 27 | 27 |
| BWA Architecture Ltd | 24 | 24 |
| The Hive Design Studio Ltd | 12 | 13 |
| Studiojb Architectural Services Ltd | 8 | 8 |
| Coombe Consultants | 7 | 7 |
| Architectural Consultant | 4 | 5 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| South West Devon | 60 | 14 | about 1 in 5 |