Side extension planning approval rate in Winchester
94% of 253 decided side extension applications in Winchester 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 253 decided
253
decided side extension applications in Winchester: 237 approved, 16 refused
95%
Recent rate, decided since 2022, from 85 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 Withdrawn applications are excluded.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 2015 to 2026. 0 of 253 decided records have no year recorded. Coverage may have gaps within the date range.
85 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 Winchester, or read about permitted development in Winchester. An approval rate does not decide which route your property qualifies for.
Example side extension decisions in Winchester
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.
Visit Winchester's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 25/02272/HOU | 2026 | Approved | First floor side extension above garage including infill to rear elevation, and single storey rear extension to replace existing conservatory. 39 Courtenay Road Winchester Hampshire SO23 7ER |
| 25/02293/LDP | 2026 | Approved | Application for a Lawful Development Certificate for a proposed use or development under Section 192 of the Town and Country Planning Act 1990 for the single... 6 Westfield Drive Swanmore Southampton Hampshire SO32 2WA |
| 25/02303/HOU | 2026 | Approved | Single storey side extension Lowhill Farm Portsmouth Road Fishers Pond Eastleigh Hampshire SO50 7HF |
| 25/01662/HOU | 2025 | Refused | Part two storey and part one storey front and side extension.Addition of porch. 4 Oakwood Close Otterbourne Winchester Hampshire SO21 2EB |
| 22/02814/HOU | 2023 | Refused | Proposed amendments to single storey side extension permitted under 21/01379/HOU 3 Upper Silkstead Cottages Silkstead Lane Hursley Winchester Hampshire SO21 2LG |
| 22/02815/LIS | 2023 | Refused | Proposed amendments to single storey side extension permitted under 21/01380/LIS 3 Upper Silkstead Cottages Silkstead Lane Hursley Winchester Hampshire SO21 2LG |
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 Winchester
- Single-storey rear extension 99%, 492 decided
- Two-storey rear extension 96%, 152 decided
- Wraparound extension 99%, 73 decided
- Loft conversion and dormer 92%, 173 decided
- Rooflight 96%, 101 decided
- Outbuilding and garden room 95%, 149 decided
- Porch 98%, 90 decided
- Garage conversion 93%, 58 decided
- Basement 96%, 24 decided
- Window and door 96%, 167 decided