Single-storey rear extension planning approval rate in Southampton
94% of 229 decided single-storey rear extension 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.
94%
Approval rate, all years, from 229 decided
229
decided single-storey rear extension applications in Southampton: 215 approved, 14 refused
97%
Recent rate, decided since 2022, from 117 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 Withdrawn applications are excluded.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 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.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 26/00035/FUL | 2026 | Approved | Erection of a rear conservatory. 100 Athelstan Road Southampton SO19 4DF |
| 23/01083/ELDC | 2025 | Approved | Application for a lawful development certificate for existing single storey rear extension 281 Burgess Road Southampton SO16 3BA |
| 24/01120/PLDC | 2025 | Approved | Application for a lawful development certificate for proposed single-storey rear extensions with a flat roof 'L' shaped dormer to the rear elevation to facil... 112 Broadlands Road Southampton SO17 3AR |
| 25/00980/PLDC | 2025 | Refused | Application for a lawful development certificate for proposed rear extension of existing raised patio. 408 Hill Lane Southampton SO15 7TY |
| 24/00394/FUL | 2024 | Refused | Erection of a single-storey annex at rear of property to facilitate conversion from C4 (Housing in Multiple Occupation) to Sui-Generis (7-bedroom HMO) 117 Harrison Road Southampton SO17 3TL |
| 23/01120/FUL | 2023 | Refused | Erection of a single storey side/rear extension to facilitate conversion into 2 dwellings (1x 1 bed flat, 1x3 bed house). 43 Queenstown Road Southampton SO15 3BN |
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
- 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
- Outbuilding and garden room 83%, 36 decided
- Porch 88%, 24 decided
- Garage conversion 91%, 11 decided
- Basement 92%, 13 decided
- Window and door 93%, 46 decided