Side extension planning approval rate in Sutton
78% of 1,284 decided side extension applications in Sutton 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.
78%
Approval rate, all years, from 1,284 decided
1,284
decided side extension applications in Sutton: 1,000 approved, 284 refused
78%
Recent rate, decided since 2022, from 636 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 Withdrawn applications are excluded.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 side extension decisions in Sutton
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 |
|---|---|---|---|
| DM2025/01112 | 2026 | Approved | Erection of a first floor side extension and alteration to side first floor roof. |
| DM2025/01323 | 2026 | Refused | Demolition of existing single storey side extension and erection of a detached single storey dwelling to rear of existing property with provision of cycle an... |
| DM2025/01333 | 2026 | Approved | Erection of a single storey side extension, increase in height of the single storey rear extension including the replacement of the roof lantern with a roofl... |
| DM2025/01401 | 2026 | Approved | Erection of a single storey side extension and alterations to fenestrations. |
| DM2025/01481 | 2026 | Refused | Erection of a first floor side extension. |
| DM2024/01728 | 2025 | Refused | Erection of a first floor side extension, conversion of garages into a habitable room, provision of a passenger lift, alteration to the existing conservatory... |
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 Sutton
- Single-storey rear extension 77%, 3,670 decided
- Two-storey rear extension 73%, 1,436 decided
- Wraparound extension 82%, 615 decided
- Loft conversion and dormer 82%, 297 decided
- Rooflight 90%, 1,697 decided
- Outbuilding and garden room 83%, 321 decided
- Porch 88%, 216 decided
- Garage conversion 90%, 284 decided
- Basement 86%, 165 decided
- Window and door 92%, 325 decided