We want to remove several internal walls in our bungalow. What drawings do we need?

If you are not sure whether the internal walls are load-bearing or not, it is wise to appoint a structural engineer. Even where the walls are not supporting the roof structure, they may be performing a bracing function and your engineer will be able to advise you on a safe method of wall removal. If supporting beams are required after the walls are removed, the engineer will size the required beams.

An architectural designer will advise on the alterations, calling on an engineer to size the supporting beams.