Outbuilding and garden room planning approval rate in Southwark
90% of 307 decided outbuilding and garden room applications in Southwark 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 307 decided
307
decided outbuilding and garden room applications in Southwark: 275 approved, 32 refused
88%
Recent rate, decided since 2022, from 187 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 Withdrawn applications are excluded.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 outbuilding and garden room decisions in Southwark
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/AP/3437 | 2026 | Approved | Contruction of an extension to existing outbuilding |
| 25/AP/3563 | 2026 | Approved | Retention of an outbuilding in the rear garden to be used for purposes incidental to the enjoyment of the dwellinghouse (garden office). Flat 2 |
| 25/AP/3569 | 2026 | Approved | Proposed outbuilding to the rear garden |
| 24/AP/3146 | 2025 | Refused | Demolition of the existing outbuilding to the rear of the property and replacement with a new single storey outbuilding and small passageway to link to the e... |
| 25/AP/0026 | 2025 | Refused | Certificate of Lawfulness (Existing) for the residential use of the outbuilding. |
| 25/AP/0546 | 2025 | Refused | Part demolition and external alterations of existing outbuilding for home office use incidental to the dwellinghouse in use as an HMO. |
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 Southwark
- Single-storey rear extension 92%, 2,018 decided
- Two-storey rear extension 92%, 470 decided
- Wraparound extension 95%, 745 decided
- Side extension 95%, 644 decided
- Loft conversion and dormer 86%, 1,006 decided
- Rooflight 95%, 1,278 decided
- Porch 97%, 90 decided
- Garage conversion 98%, 54 decided
- Basement 95%, 2,064 decided
- Window and door 95%, 1,546 decided