GS Renovation converts lofts in Stoke Newington, working with the period terraces that surround Clissold Park. N16 has real head height in most roofs and conservation area coverage across much of the area, so design and consents go hand in hand. We coordinate the engineer and the drawings, then build and see Hackney Council building control through.
Choosing the form for an N16 terrace
Stoke Newington roofs are generally deep enough to convert without touching the ceilings below, so the design question is what goes on the back. A house with a rear closet wing takes an L-shaped dormer, giving a double bedroom across the main roof and a bathroom over the wing. Where the terrace sits in a conservation area and a box dormer would be refused, a mansard is often the form that gets consent and delivers more volume besides.
The costs separate accordingly. Indicative London ranges for 2026 put an L-shaped dormer at roughly £55,000 to £80,000 and a mansard at roughly £70,000 to £100,000 or more, with an en suite adding £8,000 to £15,000. Deciding early which one your street realistically supports saves paying twice for a design that was never going to be approved, which is why we look at the conservation designation and the planning history of the address before anything else is commissioned.
Hackney Council, fire safety and shared walls
Hackney Council maintains extensive conservation areas across N16, and where yours applies, permitted development rights for the loft are removed and the design is judged on its merits. Outside those areas the terraced allowance of 40 cubic metres may apply, subject to matching materials, obscure glazed side windows and nothing forward of the roof plane. We check the designation and the planning history of your address rather than working from a neighbour's precedent.
Converting a two storey terrace creates a third storey, and Part B then calls for a protected stairwell running down to a final exit, with fire doors and interlinked alarms. That has to be designed in from the start because it shapes the landing and the doors on every floor. Steel bearings and dormer cheeks cut into the party wall are notifiable, and as the building owner you serve the notice with our technical detail behind it.
- Staircase design to Part K, including the landing below
- Trussed roofs redesigned before any web is cut
- Head height and ridge survey before design
- Rear dormers to win full head height across the new floor
- Rooflight conversions where the roof line must not change
The GS Renovation Difference in Stoke Newington
Stoke Newington homeowners choose GS Renovation because we set the design against the planning reality before drawings are commissioned, then build the whole thing: steels, floor, mansard or dormer, protected stair, insulation, bathroom and finish, with Hackney Council building control carried to completion. You deal with one accountable team, not a chain of subcontractors.
- New floor structure carried on steel, never on the old ceiling joists
- Interlinked mains alarms fitted and certified
- Structural engineer instructed and coordinated on your behalf
- Rated 4.9 from 31 reviews on MyBuilder
- Neighbours given notice before the noisy stages
- Free follow-up visit after completion if anything needs attention