Outbuilding and garden room planning approval rate in Kensington and Chelsea
87% of 247 decided outbuilding and garden room applications in Kensington and Chelsea 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.
87%
Approval rate, all years, from 247 decided
247
decided outbuilding and garden room applications in Kensington and Chelsea: 216 approved, 31 refused
87%
Recent rate, decided since 2022, from 164 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 Withdrawn applications are excluded.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 Kensington and Chelsea
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 |
|---|---|---|---|
| CL/25/00091 | 2025 | Approved | Confirmation that the outbuilding in the rear garden is lawful. (Certificate of Lawful Existing Use/Development) Flat A, 3 Barkston Gardens, LONDON, SW5 0ER |
| CL/25/00505 | 2025 | Approved | Construction of a summerhouse within rear garden.(Certificate of Lawful Proposed Use or Development.) 83 Addison Road, LONDON, W14 8ED |
| CL/25/02307 | 2025 | Approved | Construction of rear garden outbuilding (Certificate of Proposed Development). 9 St Alban's Grove, LONDON, W8 5PN |
| LB/24/07496 | 2025 | Refused | Works to lower ground closet wing, including new side infill of painted brick, including sash window; replacement lower ground rear wing door; new stone step... 3 Bedford Gardens, LONDON, W8 7ED |
| LB/25/02347 | 2025 | Refused | Erection of enlarged replacement garden room. 1 Canning Place, LONDON, W8 5AD |
| PP/24/07495 | 2025 | Refused | Works to lower ground closet wing, including new side infill of painted brick, including sash window; replacement lower ground rear wing door; new stone step... 3 Bedford Gardens, LONDON, W8 7ED |
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 Kensington and Chelsea
- Single-storey rear extension 88%, 1,593 decided
- Two-storey rear extension 88%, 178 decided
- Wraparound extension 77%, 47 decided
- Side extension 90%, 270 decided
- Loft conversion and dormer 82%, 1,062 decided
- Rooflight 92%, 1,447 decided
- Porch 94%, 192 decided
- Garage conversion 100%, 51 decided
- Basement 90%, 3,371 decided
- Window and door 93%, 4,500 decided