Loft conversion and dormer planning approval rate in Kensington and Chelsea
82% of 1,062 decided loft conversion and dormer 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.
82%
Approval rate, all years, from 1,062 decided
1,062
decided loft conversion and dormer applications in Kensington and Chelsea: 867 approved, 195 refused
83%
Recent rate, decided since 2022, from 612 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 Withdrawn applications are excluded.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 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/25/04064 | 2025 | Refused | Alterations to elevations plus extensions (mansard roofs) to create residential dwelling at No. 6 (a 3 bed dwelling) and to enlarge first floor flats at nos.... 4-8 Drayson Mews, LONDON, W8 4LY |
| CON/24/07992 | 2025 | Approved | Details required by Conditions 3 c) (details of green roof); 7 (Flood Risk Assessment and Sustainable Drainage Systems Strategy); 9 (a) (Gas and Vapour) of... 7 St Mary Abbot's Place, LONDON, W8 6LS |
| CON/24/08164 | 2025 | Approved | Details required by conditions 3 and 4 (parts b and c) (submission of details) of listed building consent 24/03504 (Internal alterations; replacement externa... 23 Ovington Street, LONDON, SW3 2JA |
| CON/25/00234 | 2025 | Approved | Details required by Appendix D of LDO (Construction Traffic Management Plan (CTMP)) for erection of mansard roof extension at third floor level as permitted... 27 Redcliffe Road, LONDON, SW10 9NP |
| CON/25/01975 | 2025 | Refused | Details required by Condition 11d (schedule of repairs to brickwork and mortar) and 11e (sample panel of repointing) of planning permission Ref. PP/23/04238... 20 Holland Street, LONDON, W8 4LT |
| CON/25/02000 | 2025 | Refused | Details required by Condition 3d (schedule of repairs to brickwork of repointing) and 3e (sample panel of repointing) of listed building consent ref. LB/23/0... 20 Holland Street, LONDON, W8 4LT |
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
- 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