Attic Conversion: Three Numbers That Decide Everything

The attic is the last big space most people leave empty. It is also the cheapest room you will ever add, because the walls and roof already exist.

Measure three numbers first

Ridge height — you need at least 2.3 m, ideally 2.5 m. Below 2 m it will never be a living space, only storage.

Roof pitch — at 35° and steeper you get usable floor area near the walls. Below 30°, almost everything disappears under the slope.

Floor load capacity — the original ceiling joists were sized for boxes, not for a bed, a bookshelf and two adults. This one goes to a structural engineer, not to YouTube.

Daylight decides the rest

Roof windows deliver roughly twice the light of a vertical window of the same size. Mount them lower than anyone suggests — bottom edge 110-120 cm above the floor, so you can see out while sitting.

A white ceiling and a pale floor add a psychological metre to the room. Dark timber on the slope does the opposite.

Work with the slope, not against it

Put the things that do not need height underneath it: the bed, low built-in storage, a desk, a reading nook. Keep the centre of the room clear — that is where you walk.

Test it before you call the builders

A conversion costs a small fortune and the layout gets decided once. Upload a photo of the bare attic to RoomFlip and generate a few versions — bedroom, studio, kids' room. Five minutes tells you what actually works, and saves you three meetings.