Outbuilding and garden room planning approval rate in Lewisham
83% of 413 decided outbuilding and garden room applications in Lewisham 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 413 decided
413
decided outbuilding and garden room applications in Lewisham: 341 approved, 72 refused
86%
Recent rate, decided since 2022, from 251 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 Withdrawn applications are excluded.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 2001 to 2026. 0 of 413 decided records have no year recorded. Coverage may have gaps within the date range.
251 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 Lewisham, or read about permitted development in Lewisham. An approval rate does not decide which route your property qualifies for.
Example outbuilding and garden room decisions in Lewisham
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.
Search Lewisham's planning register using the references below. Descriptions may be shortened; read the complete proposal and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| DC/25/140279 | 2026 | Approved | Application for a Lawful Development Certificate under Section 192 of the Town and Country Planning Act 1990 (as amended), confirming compliance with Class E... 56 NEWQUAY ROAD, LONDON, SE6 2NS |
| DC/25/141173 | 2026 | Approved | Construction of an outbuilding in the rear garden at 46 Southbrook Road SE12. 46 SOUTHBROOK ROAD, LONDON, SE12 8LL |
| DC/25/141900 | 2026 | Approved | Retrospective planning permission for a outbuilding in the rear garden at Flat B, 109 Lewisham Way SE14. FLAT B, 109 LEWISHAM WAY, LONDON, SE14 6QJ |
| DC/24/137916 | 2025 | Refused | Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Class E of S... 43 FERMOR ROAD, LONDON, SE23 2HW |
| DC/25/139089 | 2025 | Refused | Application for a Lawful Development Certificate (Proposed) submitted under Section 192 of the Town and Country Planning Act 1990 (as amended) and Class A &... 212 ALBYN ROAD, LONDON, SE8 4JQ |
| DC/25/139993 | 2025 | Refused | Construction of a detached office outbuilding to the rear of 19 Garlies Road SE23 19 GARLIES ROAD, LONDON, SE23 2RU |
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 Lewisham
- Single-storey rear extension 77%, 4,139 decided
- Two-storey rear extension 70%, 705 decided
- Wraparound extension 83%, 729 decided
- Side extension 74%, 571 decided
- Loft conversion and dormer 69%, 713 decided
- Rooflight 86%, 2,030 decided
- Porch 85%, 142 decided
- Garage conversion 92%, 110 decided
- Basement 81%, 770 decided
- Window and door 93%, 3,017 decided