hemis specialise in the design and construction of loft-conversions. Whether working from drawings provided or from a site-survey, hemis will prepare the drawings and calculations that Building Control and the builder will require. Most loft-conversions do not require Planning Permission but occasionally, Planning Permission is required and hemis would prepare the drawings and information required for the application.

To build a loft-conversion, you need to know how to alter the structure to create a room, fit the stair and build the dormer. Beams will be required and roof- and floor-joists sized. hemis prepares the calculations and shows all this information on the drawings.The drawings would also show the thermal- and acoustic-insulation, the waterproofing of the dormer-window and skylights, and the means of escape from fire and detail the smoke-alarm system, all the BRE standards.

Loft-conversions often have en-suites or bathrooms. The drawings would show the drainage and other services such as electricity and plumbing and detail the materials required for these rooms.

hemis will submit the drawings to Building Control, and Planning if required, and act as your Agent throughout the construction process answering questions raised by the Building Control Officer or builder.