Side extensions in Dartford
2,225 applications since 2016. 1,741 approved and 239 refused. Refused: about 1 in 8 here, about 1 in 7 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Single storey, no higher than 4 m
- No wider than half the width of the original house
- Not facing a road
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 | 135 | 58 | 28 |
| 2025 | 175 | 117 | 36 |
| 2024 | 162 | 133 | 19 |
| 2023 | 175 | 126 | 34 |
| 2022 | 188 | 149 | 21 |
| 2021 | 270 | 229 | 11 |
| 2020 | 206 | 188 | 4 |
| 2019 | 212 | 177 | 14 |
| 2018 | 244 | 201 | 20 |
| 2017 | 239 | 195 | 24 |
| 2016 | 219 | 168 | 28 |
Neighbouring councils
| Council | Approved | Refused | How often |
|---|---|---|---|
| Bexley | 4,335 | 753 | about 1 in 7 |
| Gravesham | 6,242 | 1,384 | about 1 in 6 |
| Thurrock | 1,102 | 320 | about 1 in 4 |