BillV wrote:
snip
There seem to be very strict regs on head clearance at the top of the access
stairs and loads of other safety related things to do with loft conversions.
Several properties of that era I've viewed turned out to have the so-called
extra bedroom(s) in un-official loft conversion that never would pass.
Purchasers' surveyors easily spotted them and the impact on selling price
can be quite large e.g. "Two bed" flat had to be changed to "One bed flat
with roof storage room" by estate agent...
Ask your local BCO, They can be quite helpful.
Info may even be on the LA's web site many have; just google search
"Loft conversion regulations"

Is it legal to have low head-room, if you ensure that all occupants are
shorter than the average bear?