Side and house extension drawings in Brixton Hill, SW2
Whether a side extension in Brixton Hill needs Lambeth's planning permission turns on its width and height, whether it joins a rear extension, and whether your road is in a conservation area, where the national register holds 65 entries for Lambeth (our analysis of the MHCLG Planning Data Platform conservation-area dataset). DrawingsDirect checks those points for your house and draws the side, side-return or combined scheme at a fixed fee.
Fixed fee from £495 drawings + £200 survey (£695 total) · all prices
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Side extensions on Brixton Hill streets
Many side extensions on Brixton Hill are built on the narrow strip beside a terrace or semi: a side return that gives a kitchen more width, or a side-and-rear combination. They are tighter to plan than a plain rear extension because the new wall sits close to the neighbour's boundary and often changes the view from the street.
Our side return extension drawings page explains what we draw for these schemes, and the side return vs wraparound comparison helps you choose a shape before you commission anything.
How Lambeth decides householder applications
Lambeth decided 595 householder applications in the four quarters to 2026 Q2, and 83% were granted (our analysis of MHCLG planning application statistics, table PS2). SW2 sits within the borough, though parts of the postcode district may fall in a neighbouring council, so confirm your address with the planning map.
The larger home extension prior approval is counted separately. Over the eight quarters to 2026 Q2 Lambeth found prior approval was required on 65 notifications and granted 49% of those (our analysis of MHCLG planning application statistics, table PS1); notifications that needed no prior approval are a separate outcome. That route covers rear extensions deeper than the standard limit, not side extensions.
Those 65 are entries on the government's planning data register rather than the council's own tally, so Lambeth's conservation area map has the final word on your road.
The rear limits that apply to the same house
On a house that is not detached, a single-storey rear extension can go back 3 metres under permitted development, and up to 6 metres through the larger home extension prior approval (GPDO 2015, Schedule 2, Part 1, Class A, on legislation.gov.uk).
If your plan joins a side addition to a rear one, the whole scheme is judged together, and a combined extension often needs a householder application. Our guide to planning permission for a side return extension goes through the thresholds.
65 Lambeth entries on the national conservation-area register
Those 65 are entries on the government's planning data register rather than the council's own tally, so Lambeth's conservation area map has the final word on your road. Inside a conservation area the council examines brickwork, window pattern and roof form closely.
Look up your road on the government's conservation-area dataset before you settle on a design. We check it for you as part of every quote.
Fees: council and DrawingsDirect
The council's statutory fee for a householder extension application is £548, and £249 for a prior approval for a larger rear extension, both from 1 April 2026. Our rear extension drawings start from £695; the pricing page shows the full list.
Send the address and a sketch or a few photographs through the form on this page, and we reply with a fixed fee for your house.
Sources
Every figure on this page, where it comes from and a link to the original.
| Figure | Source | Link |
|---|---|---|
| 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 |
| 65 | Our analysis of MHCLG planning application statistics, table PS1 (district open data table) (released 24 Sep 2026, quarters to 2026 Q2) | www.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 |
| 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 |
| 3 metres | GPDO 2015 Sch 2 Pt 1 Class A.1(f)(i): single-storey rear extension max depth, 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 (prior approval, A.4) max depth, house other than detached (source wording: 6 metres) | www.legislation.gov.uk |
| £548 | Statutory fee from 1 April 2026, SI 2012/2920 Sch 1 Pt 2 category 6(1): householder application for alterations or extensions to a single dwellinghouse | assets.publishing.service.gov.uk |
| £249 | Statutory fee from 1 April 2026: prior approval for a householder larger rear extension (GPDO Part 1 Class A) | assets.publishing.service.gov.uk |
| £695 | DrawingsDirect starting fixed fee for rear extension drawings, from the published price list | drawingsdirect.co.uk |
Questions people ask
Do I need planning permission for a side extension in Brixton?
How much are side extension drawings in SW2?
Does a conservation area stop an extension in Lambeth?
Photographs: Chris Whippet (CC BY-SA 2.0).
