On Wed, 17 May 2006 17:15:25 GMT, a particular chimpanzee named Lobster randomly hit the keyboard and produced:
Despite what some contributors say, BCOs are human. Get one on the end of a phone on a bad day or after twenty similar calls, and you may get short shrift.
On Wed, 17 May 2006 19:13:53 GMT, a particular chimpanzee named Lobster randomly hit the keyboard and produced:
Busy.
Reading the OP, Building Regs do apply, as the building is attached (and isn't a porch). It would be regarded as an alteration along the lines of converting a garage to habitable accommodation. As said elsewhere, there could be problems if it were not a 'home office' or study but self-contained commercial premises.
The problem with work of this type is that there are no clear guidelines on what applies, and what is needed to comply. The Regulations are vague, as is the ODPM (or whatever its name is this week), so it's left to local Councils to interpret the guidance as best they can. This can lead to some inconsistencies between Councils.
There's no requirement to alter the existing structure, but any new work must comply. The new wall would need to be on a reasonable foundation, and would need to be insulated. The existing walls, floor and roof will almost certainly need to be insulated to a 'reasonable' level if the building is to be heated where it wasn't before.
Oh! And Part P will apply.
Which they will interpret as strictly as they possibly can.
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