Loft conversions and dormers in Arun
3,728 applications since 1993. 2,958 approved and 273 refused. Refused: about 1 in 12 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 | 108 | 61 | 3 |
| 2025 | 121 | 93 | 5 |
| 2024 | 131 | 85 | 11 |
| 2023 | 145 | 101 | 7 |
| 2022 | 177 | 117 | 16 |
| 2021 | 208 | 144 | 17 |
| 2020 | 133 | 96 | 7 |
| 2019 | 124 | 101 | 2 |
| 2018 | 131 | 102 | 11 |
| 2017 | 129 | 101 | 11 |
| 2016 | 147 | 110 | 14 |
| 2015 | 129 | 89 | 16 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Adur and Worthing | 2,319 | 213 | about 1 in 12 |