Basement planning approval rate in Winchester
96% of 24 decided basement 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.
96%
Approval rate, all years, from 24 decided
24
decided basement applications in Winchester: 23 approved, 1 refused
Unknown
Recent rate, decided since 2022: only 5 decided, fewer than 8
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 Withdrawn applications are excluded.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 2025. 0 of 24 decided records have no year recorded. Coverage may have gaps within the date range.
5 decided records are dated 2022 or later; too few to display a recent rate. This is an archive count, not a measure of all current council activity.
Small archive sample: only 24 decided records support this figure. A small number of different outcomes can substantially change the percentage.
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 basement 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 |
|---|---|---|---|
| 25/00079/LIS | 2025 | Refused | Basement alterations include re-instate access to the basement which has been closed off and bricked up, basement steps removed and replaced, new basement wi... 14 Eastgate Street Winchester Hampshire SO23 8EB |
| 25/01320/HOU | 2025 | Approved | Single Storey Side Infill Extension and Enlarged Cellar 52 Hyde Abbey Road Winchester Hampshire SO23 7DA |
| 25/01703/HOU | 2025 | Approved | Proposed basement in front garden area Clarendon House Hurdle Way Compton Down Winchester Hampshire SO21 2AN |
| 23/02242/HOU | 2024 | Approved | (AMENDED PLANS) Insertion of windows at basement level 37 Alison Way Winchester Hampshire SO22 5BT |
| 23/02583/FUL | 2024 | Approved | Demolition of existing 4-bedroom chalet bungalow and construction of new 4-bedroom chalet bungalow with basement and associated annex. The Cottage St Johns Lane Shedfield Southampton Hampshire SO32 2TA |
| 19/01863/LIS | 2020 | Approved | Proposed fitting of two new basement vents within the flank elevation stall riser and two new sill brackets to second floor window. 43 High Street Winchester SO23 9BL |
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
- Side extension 94%, 253 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
- Window and door 96%, 167 decided