Loft conversions in Bristol
Most Bristol terraces can take a rear dormer without a planning application, which adds a double bedroom and a shower room. We do the drawings, the structural calculations, the party wall notices and the Building Control sign-off.
Typical cost
£44,000 to £82,000
Time on site
8 to 12 weeks on site

What’s included
£44,000 to £58,000 for a rooflight conversion. £58,000 to £82,000 with a rear dormer. Includes VAT, drawings and fire-safety work.
Drawings, structural calculations and a lawful development certificate
Party wall notices to your neighbours
New floor joists, steel beams and the dormer structure
Fire doors and mains-wired smoke alarms for the escape route
A new staircase that meets the head-height rules
Insulation, plastering, electrics, plumbing and decorating
Rooflight or dormer
A rooflight conversion keeps the roof shape and adds windows in the slope. It’s cheaper and quicker, but you only get full standing height in the middle of the room. A rear dormer squares off the back of the roof, so the room is usable wall to wall and there is space for a shower room.
Staying at home during the build
We build from scaffolding at the back of the house, so for the first five or six weeks the work happens above you without coming through the house. The loft hatch is opened up in about week six, when the staircase goes in, and that is the dusty week.

Questions we get asked
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