Loft conversion and dormer planning approval rate in Southampton
90% of 49 decided loft conversion and dormer 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.
90%
Approval rate, all years, from 49 decided
49
decided loft conversion and dormer applications in Southampton: 44 approved, 5 refused
90%
Recent rate, decided since 2022, from 30 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 Withdrawn applications are excluded.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 loft conversion and dormer 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 |
|---|---|---|---|
| 25/00772/FUL | 2025 | Approved | Erection of a single-storey front porch with steps and gable end roof extension 12 Willow Tree Walk Southampton SO19 8SL |
| 25/00780/FUL | 2025 | Approved | Roof extension to facilitate loft conversion. 3 Trent Road Southampton SO18 4PR |
| 25/00800/FUL | 2025 | Approved | Erection of a single-storey front extension and dormer on front elevation. 39 Chessel Crescent Southampton SO19 4BR |
| 25/00947/FUL | 2025 | Refused | Loft conversion with roof alterations with dormers on rear elevation (Retrospective) 40A Oakley Road Southampton SO16 4LG |
| 23/00188/FUL | 2023 | Refused | Erection of a hip to gable roof extension and rear dormer window. 28 Raymond Road Southampton SO15 5AL |
| 23/01205/FUL | 2023 | Refused | Roof extensions including rear hip to gable and side and front dormer windows. 30 Shelley Road Southampton SO19 6QJ |
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
- 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