House extension drawings in Lambeth
Lambeth granted 83% of the 595 householder applications it decided in the four quarters to 2026 Q2 (our analysis of MHCLG planning application statistics, table PS2), and the national register lists 65 conservation-area entries for the borough. A Lambeth extension starts with a designation check. Rear extension drawings from £695.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
Prefer to talk it through?
Check the designations before the design
The register of 65 conservation-area entries comes from our analysis of the MHCLG Planning Data Platform conservation-area dataset and may not match Lambeth's own list, so look at the council's conservation area map for your street. Then ask whether an Article 4 direction applies, because that can remove permitted development rights even outside a conservation area.
A designation changes the drawings as well as the route. Our conservation area extension rules guide explains what the council wants to see, and the Article 4 direction guide explains the directions.
Kitchen extensions at the back or the side
Kitchen extensions are usually single-storey additions to the rear or the side. On a house that is not detached, the General Permitted Development Order 2015 allows a rear extension of up to 3 metres beyond the original rear wall, or up to 6 metres through prior approval (Schedule 2, Part 1, Class A). Side extensions are far more tightly limited and are not permitted development in a conservation area.
Across the eight quarters from 2024 Q3 to 2026 Q2, 49% of the larger home extension prior approvals Lambeth determined were granted (our analysis of MHCLG planning application statistics, table PS1). If you are filling a side return, see our side return extension drawings.
Across the eight quarters from 2024 Q3 to 2026 Q2, 49% of the larger home extension prior approvals Lambeth determined were granted (our analysis of MHCLG planning application statistics, table PS1).
Speed and the appeals record
Lambeth decided 94% of its householder applications outside prior approvals within 8 weeks over the four quarters to 2026 Q2 (our analysis of MHCLG planning application statistics, table PS2). On appeal, 34% of the 220 householder cases the Planning Inspectorate decided for Lambeth between 2021 and 2026 were allowed (our analysis of the Planning Inspectorate Casework Database, release 2609). Treat both as a record of how the council has behaved, not a promise of how it will handle your application.
What it costs, and where we fit
Lambeth's householder application fee is £548 from 1 April 2026. DrawingsDirect's starting fixed fee for single-storey rear extension drawings, with the survey and the planning or permitted development drawings, is £695. The pricing page lists other fees.
Related pages cover the planning permission process in Lambeth, floor plans in Lambeth and the measured survey in Lambeth. Our London house extension drawings hub links the rest.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| £695 | DrawingsDirect starting fixed fee for single-storey rear extension drawings (survey and planning or permitted development drawings), from the published price list | drawingsdirect.co.uk |
| 3 metres | GPDO 2015 Sch 2 Pt 1 Class A.1(f)(i): a single-storey rear extension may extend beyond the rear wall of the original house by up to 3 metres, house other than detached (source wording: 3 metres) | www.legislation.gov.uk |
| 6 metres | GPDO 2015 Sch 2 Pt 1 Class A.1(g): larger home extension under the prior approval process (A.4), house other than detached, up to 6 metres beyond the original rear wall (source wording: 6 metres) | www.legislation.gov.uk |
| 595 | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 83% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 94% | Our analysis of MHCLG planning application statistics, table PS2 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| 220 | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 34% | Our analysis of Planning Inspectorate Casework Database (released 1 Oct 2026 (Casework Database 2609)) | www.gov.uk |
| 65 | Our analysis of MHCLG Planning Data Platform conservation-area and article-4-direction datasets (bulk snapshot retrieved 14 Aug 2026) | www.planning.data.gov.uk |
| 49% | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.gov.uk |
| £548 | Fees for planning applications in England from 1 April 2026 (MHCLG, SI 2012/2920 as annually indexed), category 6(1): householder application for the enlargement, improvement or alteration of a single dwellinghouse (source wording: £548) | assets.publishing.service.gov.uk |
Questions people ask
Do I need planning permission for a kitchen extension in Lambeth?
How much do kitchen extension drawings cost in Lambeth?
Photographs: Chris Whippet (CC BY-SA 2.0); David Hawgood (CC BY-SA 2.0).
