Two-storey rear extension planning approval rate in Southampton
76% of 87 decided two-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.
76%
Approval rate, all years, from 87 decided
87
decided two-storey rear extension applications in Southampton: 66 approved, 21 refused
74%
Recent rate, decided since 2022, from 31 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 Withdrawn applications are excluded.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 two-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 |
|---|---|---|---|
| 24/00931/FUL | 2025 | Approved | Erection of a part two-storey, part single storey rear extensions and single-storey front extension (part retrospective). 105 Mayfield Road Southampton SO17 3SY |
| 25/00176/FUL | 2025 | Approved | Erection of a two-storey rear extension and front porch (amended after validation to include porch). 117 Macnaghten Road Southampton SO18 1GG |
| 25/00177/FUL | 2025 | Approved | Erection of two storey rear extension following demolition of existing single storey extension. 25 Glenfield Crescent Southampton SO18 4RG |
| 25/00278/FUL | 2025 | Refused | Erection of a part 2-storey, part first floor rear extension and new first floor side window. 46 Langhorn Road Southampton SO16 3TN |
| 24/00549/FUL | 2024 | Refused | Erection of part two storey part first floor side and rear extension 2 Stanley Road Southampton SO17 2LW |
| 23/00335/FUL | 2023 | Refused | Erection of a two-storey side, single storey front and rear extensions, and roof extension to facilitate loft conversion 53 Channels Farm Road Southampton SO16 2PF |
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
- 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