This is a frequent question, there are no regulations but guidance and it falls down to personal preference.
2.1m is seen as a comfortable minimum, but we have gone as low as 2m, with 1.75m into dormers. One point to bear in mind is the resale value; this may be compromised if you adopt a low conversion.
In order to optimise the design the devil is in the detail and will require careful consideration from the outset, we look carefully at each installation and would provide to optimum structural solution to ensure reasonable head heights are achieved We have just launched a new design service for our clients.
We would be pleased to provide you a quote for feasibility study to assess viability before committing to major project works.
Jeremy Wedge MIstrutE CEng on behalf of Loft Conversion UK
