Mark 101 replied to the topic ‘Below legal height’ in the forum Help Needed! 10 years, 9 months ago
It's not just the legal height you need to worry about, these built-in underneath places often neglect to put in any damp proofing.
The answer is to dig up the floor and have it lowered and a damp proof course put in.
No idea how much the job would cost or getting approvals for the work.
No insurance is the big worry.