Loft conversions and dormers in Conwy
1,081 applications since 1988. 911 approved and 112 refused. Refused: about 1 in 9 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 | 38 | 28 | 5 |
| 2025 | 33 | 29 | 2 |
| 2024 | 51 | 39 | 7 |
| 2023 | 53 | 44 | 8 |
| 2022 | 53 | 49 | 3 |
| 2021 | 62 | 57 | 5 |
| 2020 | 44 | 33 | 7 |
| 2019 | 52 | 45 | 5 |
| 2018 | 34 | 29 | 2 |
| 2017 | 42 | 41 | 0 |
| 2016 | 50 | 46 | 3 |
| 2015 | 39 | 38 | 1 |