Loft conversion and dormer planning approval rate in Brent
69% of 1,081 decided loft conversion and dormer applications in Brent were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
69%
Approval rate, all years, from 1,081 decided
1,081
decided loft conversion and dormer applications in Brent: 744 approved, 337 refused
65%
Recent rate, decided since 2022, from 430 decided
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Example loft conversion and dormer decisions in Brent
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 25/2984 | 2026 | Approved | Joint application for proposed mansard roof extension and 4x rear dormer windows to flats 43B & Flat 2, 45 High Street, London, NW10 4NJ |
| 25/3118 | 2026 | Approved | Proposed conversion of existing first and second floor maisonette into 2, self-contained flats, mansard roof extension with 1 x front and 2 x rear dormer win... 226 & 226A High Road, London, NW10 2NX |
| 25/3136 | 2026 | Refused | Replacement of the windows in the existing rear dormer extension of the dwellinghouse 24 Plympton Avenue, London, NW6 7TJ |
| 25/3137 | 2026 | Refused | Certificate of lawfulness for existing use of the ground floor as a two bedroom self contained flat and the use of the first floor and loft floor as a 5 bedr... 245 Chamberlayne Road, London, NW10 3NX |
| 25/3149 | 2026 | Approved | Proposed roof terrace, dormer to outrigger and alterations to rear dormer to dwellinghouse. 50 Tennyson Road, London, NW6 7SA |
| 25/3325 | 2026 | Refused | Certificate of lawfulness for proposed dormer to the roof of rear outrigger to dwellinghouse 19 Greyhound Road, London, NW10 5QH |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in Brent
- Single-storey rear extension 73%, 8,757 decided
- Two-storey rear extension 64%, 2,223 decided
- Wraparound extension 80%, 1,084 decided
- Side extension 73%, 1,333 decided
- Rooflight 82%, 3,607 decided
- Outbuilding and garden room 60%, 580 decided
- Porch 69%, 337 decided
- Garage conversion 82%, 268 decided
- Basement 84%, 1,204 decided
- Window and door 87%, 1,625 decided