Outbuilding and garden room planning approval rate in Brent
60% of 580 decided outbuilding and garden room 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.
60%
Approval rate, all years, from 580 decided
580
decided outbuilding and garden room applications in Brent: 348 approved, 232 refused
61%
Recent rate, decided since 2022, from 332 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 Withdrawn applications are excluded.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 outbuilding and garden room 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 |
|---|---|---|---|
| 25/1200 | 2026 | Approved | Retain existing outbuilding in rear garden. 10 Sherrick Green Road, London, NW10 1LD |
| 25/2343 | 2026 | Approved | Construction of outbuilding and hardstanding with associated increase in ground levels to rear garden of dwellinghouse. 42 Birchen Grove, London, NW9 8SA |
| 25/3319 | 2026 | Refused | Certificate of lawfulness for the existing single storey outbuilding forÿpurposes incidental to the residential use of the dwellinghouse, including use as a... 5C Exeter Road, London, NW2 4SJ |
| 25/3581 | 2026 | Approved | Certificate of lawfulness for proposed single storey outbuilding and alterations to the landscaping to the rear garden of the dwellinghouse. 583 Kenton Road, Harrow, HA3 9RS |
| 23/0890 | 2025 | Refused | Outline planning permission for demolition of existing dwellinghouse and outbuildings and erection of a two-storey building with accommodation in roof space... 272 Dollis Hill Lane, London, NW2 6HH |
| 24/3639 | 2025 | Refused | Certificate of lawfulness for proposed outbuilding to rear garden of dwellinghouse. 131 Chaplin Road, Wembley, HA0 4UN |
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
- Loft conversion and dormer 69%, 1,081 decided
- Rooflight 82%, 3,607 decided
- Porch 69%, 337 decided
- Garage conversion 82%, 268 decided
- Basement 84%, 1,204 decided
- Window and door 87%, 1,625 decided