Side extension planning approval rate in Wandsworth
94% of 1,560 decided side extension applications in Wandsworth 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.
94%
Approval rate, all years, from 1,560 decided
1,560
decided side extension applications in Wandsworth: 1,468 approved, 92 refused
93%
Recent rate, decided since 2022, from 1,311 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 Withdrawn applications are excluded. The eight-record threshold is a display rule, not a guarantee that a sample is statistically reliable.
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.
Coverage for this project type
Dated records in this archive span 1997 to 2026. 3 of 1,560 decided records have no year recorded. Coverage may have gaps within the date range.
1,311 decided records are dated 2022 or later. This is an archive count, not a measure of all current council activity.
These project categories can include different application routes and proposals combining several kinds of work. Read the proposal and decision type before comparing it with your project.
Check planning requirements in Wandsworth, or read about permitted development in Wandsworth. An approval rate does not decide which route your property qualifies for.
Example side extension decisions in Wandsworth
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.
Search Wandsworth's planning register using the references below. Descriptions may be shortened; read the complete proposal and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 2025/0669 | 2026 | Approved | Alterations including erection of part three-storey rear/side extension, first and second floor rear extension and roof extension above three-storey back add... |
| 2025/3073 | 2026 | Approved | Variation of condition 2 (in accordance with approved drawings) pursuant to planning permission dated 11/04/2025 ref 2023/0589 (Erection of a single storey... Flat Ground Floor |
| 2025/3452 | 2026 | Approved | Alterations including erection of single-storey rear/side extension. |
| 2025/4052 | 2026 | Refused | Variation of condition 2 (in accordance with approved drawings) of planning permission dated 25/04/2025 ref 2025/0652 (Alterations including erection of mans... |
| 2025/4509 | 2026 | Refused | Non-material amendment to planning permission dated 25/04/2025 ref 2024/3276 (Alterations including erection of rear dormer roof extension to main roof and e... |
| 2026/0180 | 2026 | Refused | Alterations including demolition of existing rear extension and erection of single-storey rear/side extension |
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 Wandsworth
- Single-storey rear extension 93%, 2,373 decided
- Two-storey rear extension 90%, 1,463 decided
- Wraparound extension 94%, 426 decided
- Loft conversion and dormer 89%, 2,067 decided
- Rooflight 92%, 461 decided
- Outbuilding and garden room 91%, 149 decided
- Porch 89%, 123 decided
- Garage conversion 90%, 31 decided
- Basement 95%, 2,592 decided
- Window and door 93%, 1,376 decided