Convert a house into flats in Lewisham
Do you need planning permission for a conversion into flats in Lewisham? Here is what the permitted development rules say, how London Borough of Lewisham’s designations change them, and what decides an application — grounded in the official guidance, quoted verbatim.
Do you need planning permission for a conversion into flats in Lewisham?
Subdividing one dwelling into two or more is a material change of use: there are no householder permitted development rights for it, so every conversion is a full planning application. Whether a conversion into flats needs permission in Lewisham still depends on your exact address and the designations on it.
The starting point
Subdividing one dwelling into two or more is a material change of use: there are no householder permitted development rights for it, so every conversion is a full planning application.
How Lewisham’s designations apply
| Designation in Lewisham | Published |
|---|---|
| Conservation areas | 30 |
| Article 4 directions (PD removed) | 89 |
| Listed building outlines | 364 |
Quality decides it — room sizes against space standards, layouts, light and outlook, and amenity space. The principle of conversion is usually supported; poor internal quality is where schemes fail. Counts are read live from planning.data.gov.uk; your report checks them against your exact address.
What Lewisham weighs
Quality decides it — room sizes against space standards, layouts, light and outlook, and amenity space. The principle of conversion is usually supported; poor internal quality is where schemes fail.
As a London borough, London Borough of Lewisham also decides against the London Plan 2021 — the strategic policy layer for all 33 boroughs — alongside national policy and its own Local Plan.
See a conversion into flats in a real report
A change of use inside the Maritime Greenwich World Heritage Site — housing policy and heritage weighed together, 78% of 267 nearby decisions approved.
Get a planning report for your Lewisham address
A Planning Policy report reads the designations on your exact Lewisham address, quotes the London Borough of Lewisham and national policies that apply to a conversion into flats, and — on Pro — shows decided applications nearby with outcomes.