Housing expansion is usually meaning to add another bedroom on your loft, or extend your living room from your garden area. 

The work is normally taking between 6 months to a year, main reason is due to planning permission application, structural drawing and building regulation approvals. It is not always possible to build as how you wanted. 

We worked with many designers and structural engineers who have years of experience to deal with many complicated cases. Who can give you best advise to maximise your property size as well as your rental income.