Excavation of 250mm, this being below the frost heave level.
100mm of compact limestone, covered with blinding of sand.
Under floor Insulation
50mm deep layer of insulated blocks.
1000 grade polythene damp proof membrane.
Concrete floor no thinner than 100mm.
All walls have insulated cavity using jablite polystyrene 1200mm x 450mm sheets.
Brickwork feature or plaster.
Brickwork to suit existing house (If exact match is not possible alternative samples will be made available).