Loft & Cellar Conversions

Attic and Cellar Conversion in Manchester and Cheshire

Converting your roof space into extra accommodation such as a bedroom or play area is a good solution to gaining more space.

From a planning point of view certain work can be carried out under permitted development particularly where only a roof light is being used, accept where the roof light is on the front elevation of the building facing a main road. Where the conversion involves a dormer window there are more stringent regulations that may require you to have to make a planning application – we can advise further dependent on the individual circumstances. The main difficulties are related to Building Regulations where head height and the stair access/position is a often a concern plus being able to achieve a correct means of escape plus the requirement to fire protect the main stairs access route of the house. We produce all the  plans and details to meet these criteria.

Attic_conversion2Attic Stairs



Turning your cellar or basement into usuable space to be used as an office, play area or bedroom/bathroom is often a practical proposition particularly if you have a double chamber.

Converting an existing cellar beneath your house from a storage area to habitable space involves only a ‘change of use’ and therefore would not require planning approval. Reducing the floor level of a cellar ‘significantly’ however to improve the ceiling height would have the effect of enlarging the volume of the property and could therefore be treated as an extension which would require planning approval – clarification with the LA planning department is always advisable; look at house extension plans manchester for details of of Planning & Building Authorities and where we operate.



Making sure your basement is completely dry is essential – today the most reliable method to waterproof a cellar is by acavity drain membrane system’ which is attached to the cellar walls by offset studs creating a cavity which allows it to be fully drained and any water penetration is diverted into a floor drain around the perimeter of the room. Where there is no natural floor drain the water can be pumped to an appropriate outlet.

Where your cellar is already perfectly dry it may be appropriate to use the less expensive ‘tanking’ method which involves the application of a layer of waterproof cement render to the walls which is applied in several layers – it is usually linked to the waterproof floor screed on top of the concrete floor slab.

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