Two-storey rear extension planning approval rate in Kensington and Chelsea
88% of 178 decided two-storey rear extension 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.
88%
Approval rate, all years, from 178 decided
178
decided two-storey rear extension applications in Kensington and Chelsea: 157 approved, 21 refused
89%
Recent rate, decided since 2022, from 105 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 Withdrawn applications are excluded.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 two-storey rear extension 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 |
|---|---|---|---|
| CON/25/01141 | 2025 | Approved | Details required by condition 8 (SuDS) of planning permission 24/06854 (Demolition of existing garage and side wing to create two storey extension featuring... 61 Clarendon Road, LONDON, W11 4JE |
| CON/25/03687 | 2025 | Approved | Details required by Condition 7 (Sustainable Drainage Systems Strategy) of planning permission 24/05851 (Infill extension at second floor front elevation; co... 8 Chepstow Villas, LONDON, W11 2RB |
| CON/25/03730 | 2025 | Approved | Details required by condition 5 (Sustainable Urban Drainage System (SuDS) of planning permission PP/24/05952 (Replacement of single-storey rear infill extens... 19 Norland Square, LONDON, W11 4PU |
| LB/24/05045 | 2025 | Refused | Demolition of existing five-storey rear outrigger extension and replacement with two-storey rear outrigger extension with roof terrace, works to roof and rea... 24 Pembridge Square, LONDON, W2 4DR |
| PP/24/05044 | 2025 | Refused | Demolition of existing five-storey rear outrigger extension and replacement with two-storey rear outrigger extension with roof terrace, works to roof and rea... 24 Pembridge Square, LONDON, W2 4DR |
| PP/24/01025 | 2024 | Refused | Demolition of two storey rear extension and replacement with two storey extension with roof terrace above. Removal of conservatory link structure and replace... 5 Seymour Walk, LONDON, SW10 9NE |
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
- Wraparound extension 77%, 47 decided
- Side extension 90%, 270 decided
- Loft conversion and dormer 82%, 1,062 decided
- Rooflight 92%, 1,447 decided
- Outbuilding and garden room 87%, 247 decided
- Porch 94%, 192 decided
- Garage conversion 100%, 51 decided
- Basement 90%, 3,371 decided
- Window and door 93%, 4,500 decided