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NO! I’ve had near identical jobs come across my desk in the past and they’re fraught with Building Regulation traps, and the owner is never prepared for the work involved. Firstly, under Regulation 5(g) of the Building Regulations, this would be defined as a material change of use: ‘the...

Screed up to the walls should be fine. Presuming that there is continuity between the start of the wall insulation and the floor insulation, the effect of cold-bridging should be negligible.

Good point- I assumed full loft conversion.

If it were new-built you'd look for 6inches/150mm minimum clearance. I've seen this get picked up by mortgage surveyors too. If you can only manage 4inches/100mm I would try to maintain a 50mm gap between the actual decking and the house for water to run down (attaching the actual supporting...

There are 2 other methods of showing compliance. You can do a simple calculation whereby the you may be able to show that you've 'traded off' the heat loss from the extra glazing with better-than-minimum insulation elsewhere (see paragraph 18, Approved Document L1B). This may require you to beef...

In 2003 the LDSA (London District Surveyor's Association) agreed the following after Part E (Sound) was revised: 'The new flooring, should be a minimum 21mm thick chipboard or equivalent, of minimum 15 kg/m2 density and screwed with occasional screw fixings to the joists to prevent...