Outbuilding and garden room planning approval rate in Southampton
83% of 36 decided outbuilding and garden room applications in Southampton 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.
83%
Approval rate, all years, from 36 decided
36
decided outbuilding and garden room applications in Southampton: 30 approved, 6 refused
82%
Recent rate, decided since 2022, from 22 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 Withdrawn applications are excluded.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 2016 to 2026. 0 of 36 decided records have no year recorded. Coverage may have gaps within the date range.
22 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 Southampton, or read about permitted development in Southampton. An approval rate does not decide which route your property qualifies for.
Example outbuilding and garden room decisions in Southampton
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 Southampton's official website to find its planning register and search the references below. Descriptions may be shortened.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 25/01453/FUL | 2026 | Refused | Erection out an outbuilding (Retrospective). 16 Warbler Close Southampton SO16 8HT |
| 26/00034/FUL | 2026 | Approved | Erection of an outbuilding in rear garden. 103A Kathleen Road Southampton SO19 8LP |
| 24/01111/FUL | 2025 | Approved | Erection of rear outbuilding for use as a home office. 216 West End Road Southampton SO18 6PN |
| 25/00118/PLDC | 2025 | Approved | Application for a lawful development certificate for proposed erection of a single-storey outbuilding with raised decking between main house and outbuilding. 27 Monks Wood Close Southampton SO16 3TT |
| 23/01087/FUL | 2023 | Refused | Conversion of approved annexe (14/01590/FUL) into a one bedroom dwelling (Retrospective) 117 Prince of Wales Avenue Southampton SO15 4LS |
| 23/01087/FUL | 2023 | Refused | Conversion of approved annexe (14/01590/FUL) into a one bedroom dwelling (Retrospective) 117 Prince of Wales Avenue Southampton SO15 4LS |
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 Southampton
- Single-storey rear extension 94%, 229 decided
- Two-storey rear extension 76%, 87 decided
- Wraparound extension 98%, 44 decided
- Side extension 85%, 109 decided
- Loft conversion and dormer 90%, 49 decided
- Rooflight 80%, 15 decided
- Porch 88%, 24 decided
- Garage conversion 91%, 11 decided
- Basement 92%, 13 decided
- Window and door 93%, 46 decided