Loft conversion and dormer planning approval rate in Lewisham
69% of 713 decided loft conversion and dormer 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.
69%
Approval rate, all years, from 713 decided
713
decided loft conversion and dormer applications in Lewisham: 491 approved, 222 refused
62%
Recent rate, decided since 2022, from 299 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 Withdrawn applications are excluded.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 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.
| Reference | Year | Decision | Application |
|---|---|---|---|
| DC/25/142054 | 2026 | Approved | Construction of a roof extension in the rear roof slope together with the partial removal of the existing chimney stack at the rear outrigger and all associa... 29 SALEHURST ROAD, LONDON, SE4 1AS |
| DC/25/142202 | 2026 | Approved | Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B an... 199 MANWOOD ROAD, LONDON, SE4 1SF |
| DC/26/142645 | 2026 | Approved | Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) Class B of Sched... 19 WHATMAN ROAD, LONDON, SE23 1EY |
| DC/24/136425 | 2025 | Refused | Construction of rear dormer extension and the installation of new casement windows to the rear at 104 Thornsbeach Road, SE6. 104 THORNSBEACH ROAD, LONDON, SE6 1HD |
| DC/25/138574 | 2025 | Refused | Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Schedule 2,... 90 SYDENHAM PARK ROAD, LONDON, SE26 4LH |
| DC/25/138781 | 2025 | Refused | An application submitted under Section 73 of the Town and Country Planning Act 1990 for Minor Material Amendments in connection with the planning permission... LAND ADJACENT TO, 31 CLAYHILL CRESCENT, LONDON, SE9 4JA |
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
- Rooflight 86%, 2,030 decided
- Outbuilding and garden room 83%, 413 decided
- Porch 85%, 142 decided
- Garage conversion 92%, 110 decided
- Basement 81%, 770 decided
- Window and door 93%, 3,017 decided