Windows and doors in Dacorum
5,824 applications since 1989. 5,083 approved and 149 refused. Refused: about 1 in 35 here, about 1 in 9 across the councils we cover.
Last updated 9 November 2026.
Without planning permission
- Materials and look similar to the existing house
- New upper-floor side windows obscure-glazed and fixed below 1.7 m
England, houses only. Flats, listed buildings, conservation areas and Article 4 directions change this.
Year by year
| Year | Applications | Approved | Refused |
|---|---|---|---|
| 2026 | 171 | 123 | 16 |
| 2025 | 206 | 178 | 14 |
| 2024 | 225 | 199 | 12 |
| 2023 | 282 | 239 | 24 |
| 2022 | 263 | 231 | 14 |
| 2021 | 334 | 288 | 16 |
| 2020 | 246 | 217 | 15 |
| 2019 | 235 | 216 | 9 |
| 2018 | 241 | 216 | 13 |
| 2017 | 235 | 220 | 6 |
| 2016 | 250 | 229 | 10 |
| 2015 | 234 | 210 | 0 |
Architects and agents, last 5 years
| Firm | Approved | Decided |
|---|---|---|
| Blackwood Architects Ltd | 33 | 35 |
| Battram Associates | 15 | 15 |
| Miramar Design Ltd | 15 | 15 |
| Langley Planning & Design Ltd | 14 | 14 |
| Sargeant Architects | 13 | 15 |
| TW-2 Architects | 11 | 11 |
| Thompson Bradford Architects Ltd | 11 | 11 |
| Pinchin Architects Ltd. | 9 | 9 |
| GG Architecture | 8 | 8 |
| Abri Design | 6 | 6 |