Feasibility
The first stage of any loft conversion is a close inspection of the loft space to find out its exact dimensions and whether conversion is feasible. On entering the loft one needs to establish if there is adequate room under the ridge of the roof. A measurement of 2.3 metres is required to allow enough headroom, although you may find that you can still get a useful room from as little as 7 feet (2.1 metres), and there must be at least 2 metres clearance above the position of the access stairs. The roof should be checked for any signs that rainwater is entering the roof space. The appearance of dark stains on the roof rafters is a strong indication that this problem exists. Repairs to the roof are usually carried out during the works as part of the loft conversion process due to the construction of dormers and fitting roof windows.
Due to the slope of the roof and the required access headroom, the feasibility of a loft conversion is dependant upon a minimum height of approximately 2.2 m (7 ft 6 in) measured from the joist to the apex. Providing that this requirement is met, most properties will likely possess the potential to have the loft space converted.
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