Tez wrote:

I have a couple of quotes from builders for converting my loft to a
third bedroom. My mid-terrace house has a ground floor and first
floor at the moment. Another flight of steps will be put in to lead
to the attic bedroom.

One builder mentioned increasing the thickness of the ceiling below to
meet building regulations. The other builder didnt mention changing
anything outside of the attic space.

Are there basic regulations that have to be met when converting an
attic to a third bedroom - fire resistance, ventilations, insulation,
fire escape? Are there legal requirements? Will a planning officer
come round and ask for it to be changed if it isnt done right?

Have a look at this very good site by John Rumm, who's a regular here,
and which probably answers your queries:
http://www.internode.co.uk/loft/

I also thought there was an FAQ on this topic at
http://www.diyfaq.org.uk but I can't see it now - either it's gone now
or I'm losing the plot?

David