Head height
There has to be enough head height for a usable room and for the stairs. If there is not, the roof may need a dormer or more significant changes.
Dormers and rooflights
Rooflights keep the roof line as it is. A dormer adds floor space and head height but is more work to build. The size and number of dormers makes a big difference.
The structure
Most lofts need new floor joists to take the weight of a room, and often steel beams where roof timbers are removed or changed.
The stairs
A loft room needs a proper staircase, and finding space for it on the floor below can mean changes to a bedroom, landing or cupboard.
Fire safety and insulation
The building regulations set requirements for a safe escape route, fire doors, insulation and ventilation. These are part of every loft conversion and are covered by the building warrant.
Bathroom or not
Adding a bathroom or shower room brings plumbing, drainage and tiling into the project.
Finishes
Flooring, built-in storage, lighting and decoration depend on your choices, and we list them separately so you can see what each one costs.
How we price it
Our quantity surveyors price the build from the approved warrant drawings. The main price covers the construction cost to build to the warrant, finishing items are listed separately, and what is not included is written down.

