Loft Conversions Mitcham, Designed and Built by One Team

Often not. Many loft conversions count as permitted development: up to 40 cubic metres of extra roof space on a terraced house and 50 cubic metres on a semi-detached or detached house, with nothing built out beyond the roof slope facing the road. Flats and maisonettes have no permitted development rights, and a roof extension in a conservation area, such as Mitcham Cricket Green, needs planning permission from Merton Council. A mansard usually needs it too.

Yes, every loft conversion does, even when no planning permission is needed. Building control checks the new floor structure, fire safety on the way down the stairs, insulation, ventilation and the staircase itself. We plan the conversion to meet those rules from the start.

It depends on the roof. A rear dormer suits most terraced houses. A hip-to-gable conversion, often with a rear dormer, suits semi-detached and detached houses with a hipped roof. A mansard gives the most space but usually needs planning permission. A rooflight conversion keeps the roof as it is and works where there is already good height under the ridge.

If you live in a semi-detached or terraced house and the work affects the shared wall, for example steel beams resting in it, the Party Wall etc. Act 1996 applies. You serve notice on your neighbours at least two months before that work starts, and they have 14 days to reply.

Yes. We have our own plumbers and electricians, so a shower room or en-suite can be fitted by the same team as the rest of the loft. Where it goes depends on head height and on how the waste reaches the existing soil pipe, so it is best planned at the drawing stage.

Yes. Our team includes architects as well as builders, joiners, plumbers and electricians, so the drawings, the planning or permitted development check and the build are all handled by Concept Construction London.