Single-storey rear extension planning approval rate in Wandsworth
93% of 2,373 decided single-storey rear 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.
93%
Approval rate, all years, from 2,373 decided
2,373
decided single-storey rear extension applications in Wandsworth: 2,207 approved, 166 refused
91%
Recent rate, decided since 2022, from 1,717 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 Withdrawn applications are excluded.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 single-storey rear 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.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 2025/0938 | 2026 | Approved | Alterations including erection of single-storey rear extension |
| 2025/2778 | 2026 | Approved | Alterations including erection of single-storey rear extension and single-storey garden office in rear garden. Replacement of existing windows with new timbe... |
| 2025/3111 | 2026 | Approved | Alterations to include erection of a roof extension to main roof including raising the roof ridge by 400mm and rooflights to front roofslope. Erection of a s... |
| 2025/4325 | 2026 | Refused | Part retrospective planning permission for rear extension and alteration to roof to include changes to height/depth of extension and changes to lower-ground... |
| 2025/4535 | 2026 | Refused | Erection of single-storey rear extension to extend beyond the rear wall of the existing dwellinghouse by 4.41m, the total height of the proposed extension is... |
| 2022/2795 | 2025 | Refused | Alterations including erection of asingle-storey extension to rear upper ground floor and Installation of new windows x 3 at lower and upper ground floor sid... Flat Upper Ground Floor B |
Planning a rear extension in Wandsworth
Start by checking whether your property and proposed work qualify for permitted development or need an application. The rate above does not answer that question. Read the rear-extension planning guide.
What to show on your drawings
Wandsworth’s Housing SPD discusses rear extensions in section 4, from paragraph 4.21. It asks designers to consider how the extension relates to the original house and neighbouring homes.
- Neighbouring windows: show their position and how the extension affects daylight and outlook.
- Height and depth: consider the combined effect at the boundary, including existing rear additions.
- Scale and appearance: relate the roof and proportions to the host house rather than treating the footprint alone as the design.
Read the council’s rear-extension guidance (Housing SPD, PDF). This guidance was adopted in 2016. Read it alongside the current Local Plan and adopted updates; do not use the SPD’s older policy references as a substitute for current policy.
Compare the right applications
Some records combine a rear extension with side extensions, roof works or other changes. Check the full proposal and the council’s reasons before treating one as comparable to yours.
Search Wandsworth’s planning register for the references above and read the drawings and decision documents.
See what our rear-extension drawing service includes, or check the constraints at your Wandsworth address.
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
- Two-storey rear extension 90%, 1,463 decided
- Wraparound extension 94%, 426 decided
- Side extension 94%, 1,560 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