Loft conversions glossary


A conversion with an extension to the roof is called a "Dormer".


Minimum headroom
The buildings regulations do not specify a minimum height requirement for new rooms, however, there is a requirement of a minimum height of 2m from the top of the stairs.


Party walls
If you live in a terraced or semi detached property, the wall between yourselves and your neighbours is called a party wall. In a terraced or semi-detached house, the separating wall needs to be able to resist the passage of sound, irrespective of whether or not the neighbouring house has a habitable room in the roof (sound can travel through the wall into your neighbour's roof void and through the ceiling, and vice-versa). If you live in this type of property, then you have certain responsibilities under "The Party Wall etc Act 1996".


Planning applications
These are legal requirements aimed at achieving adequate standards of building work within the new construction. You are required to achieve compliance with the Building Regulations when you consider a loft conversion.
The Building Regulations 2000 differ and are dependant on your local council. With over 30 years of experience behind us, we contact your local council and liaise with them to gain permission on your behalf.
The general rule is that if your property is listed or situated in a conservation area listed building consent and planning permission may be required.
It's likely that if your property is not listed or is not listed in a conservation area, it may be extended up to a particular volumetric limit without planning permission being required.


Space saver staircase

A Space Saver Staircase is a staircase that has alternating treads allowing you to get up a flight of stairs in approximately half the going distance of a normal flight of stairs.



Velux™ is the brand name for skylights, loft windows and roof windows. Velux™ windows are available in a huge range of designs and styles, for flat, sloping and pitched roofs, in wood and polyurathane frames, with various shutter designs, rollers and glazing