Wraparound extension planning approval rate in Hillingdon
79% of 844 decided wraparound extension applications in Hillingdon 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.
79%
Approval rate, all years, from 844 decided
844
decided wraparound extension applications in Hillingdon: 666 approved, 178 refused
83%
Recent rate, decided since 2022, from 643 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 Withdrawn applications are excluded.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 wraparound extension decisions in Hillingdon
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 |
|---|---|---|---|
| 10996/APP/2025/3180 | 2026 | Approved | Erection of wraparound side and rear extension, and a front porch. 94 WINDSOR AVENUE |
| 11687/APP/2025/3185 | 2026 | Approved | Erection of single storey side/rear wraparound extension and the conversion of the attached side garage into habitable use, following the demolition of the e... 35 CAMPDEN ROAD |
| 13473/APP/2026/32 | 2026 | Approved | Erection of a single storey side and rear extension and retention of an outbuilding, following the demolition of the existing garage and garden shed. 43 PAVILION WAY |
| 20886/APP/2025/2742 | 2026 | Refused | Conversion of roof to habitable use to include 2 x side dormers, 4 x side window dormers, hip to gable end front and rear extension, gable end windows, raise... 23 NICHOLLS AVENUE |
| 24166/APP/2025/2918 | 2026 | Refused | Erection of single storey wrap around extension to the front, rear and side, following the demolition of existing rear and side extension 16 HUGHES ROAD |
| 38305/APP/2026/119 | 2026 | Refused | Erection of single storey front, side and rear extension, conversion of roof space to habitable use to include raising the ridge height, hip to gable extensi... ROSE MARIE |
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 Hillingdon
- Single-storey rear extension 83%, 7,240 decided
- Two-storey rear extension 66%, 2,756 decided
- Side extension 71%, 1,686 decided
- Loft conversion and dormer 74%, 585 decided
- Rooflight 89%, 2,768 decided
- Outbuilding and garden room 81%, 1,230 decided
- Porch 75%, 374 decided
- Garage conversion 89%, 425 decided
- Basement 86%, 432 decided
- Window and door 86%, 496 decided