GS Renovation builds loft conversions in Brixton, from the bay-fronted Victorian terraces off Brockwell Park to the Edwardian streets running towards Streatham. In SW2 the closet wing at the back of the house is what shapes the design. We coordinate the engineer, build the steelwork and dormer, and see Lambeth Council building control through.
Getting a proper room out of an SW2 terrace
Start with a tape measure at the ridge. Roughly 2.2m to 2.4m of existing height between the ceiling joists and the ridge is what makes a Brixton loft work without dropping the ceilings on the floor below. If the height is there, the rear closet wing gives you the option of an L-shaped dormer, wrapping the new roof around the back and down over the wing so you gain a double bedroom, a bathroom and a landing rather than a single awkward room.
Where a full dormer is not wanted or not permitted, a rooflight conversion is the lighter option. It adds no volume, keeps the roof line as it is and often sits within permitted development, but it only gives you the floor area the existing roof already encloses. Indicative London ranges for 2026 are roughly £30,000 to £45,000 for a rooflight conversion against £55,000 to £80,000 for an L-shaped dormer, so the two are very different propositions.
Lambeth Council and the wall you share
Brixton is a patchwork. Some streets carry permitted development rights for a rear dormer within the usual 40 cubic metre terraced allowance, and others fall inside conservation areas where those rights are removed and Lambeth Council will expect a planning application, sometimes steering you towards a mansard instead of a box dormer. Nobody can tell you which applies from the postcode alone, so we check the designation for your address before any drawings are commissioned.
Every terrace in SW2 shares at least one party wall, and a loft conversion nearly always cuts into it, whether for steel bearings or the dormer cheek. That makes the work notifiable under the Party Wall etc. Act 1996. The notice is yours to serve as the building owner, and we prepare the technical detail behind it so your neighbour gets a clear picture of what is happening and when.
- Staircase design to Part K, including the landing below
- Trussed roofs redesigned before any web is cut
- Structural steel sized by the engineer and set on padstones
- Velux and conservation rooflights fitted and flashed
- New floor joists independent of the existing ceiling
Why Choose GS Renovation in Brixton
Brixton homeowners choose GS Renovation because we are honest about what an SW2 roof will give you before anyone spends money on drawings. Then one team delivers it: engineer coordination, steels, new floor, dormer, stair, insulation and finish, with Lambeth Council building control signed off at the end. Fully insured, free no-obligation quotations, Companies House no. 14611254.
- Paperwork and certificates handed over for when you sell
- Interlinked mains alarms fitted and certified
- A dedicated project manager from first survey to handover
- Roof type assessed so you get the scheme your house can actually take
- Dust screens and floor protection in occupied homes
- Roof made good, leadwork and guttering finished properly