Loft Conversion Building Regulations
A Brief Overview
A loft conversion for a house is considered to be a permitted development. This means that planning permission is not always required. However, the conversion must adhere to certain limits and conditions depending on your house and local council. Listed below you will find the most important of these regulations. Feel free to contact us for individual advice.
Regulations
Volume
A volume allowance of 50 cubic metres additional roof space may be realised for detached and semi-detached houses without permission.
Dimensions
No extension is allowed to exceed the highest part of the roof or protrude beyond the plane of the existing roof slope of the principal elevation.
Positioning
Roof extensions, apart from hip to gable ones, have to be set back, as far as practicable, at least 20cm from the original eaves.
Materials
The materials used for cladding have to be similar in appearance to the existing house.
Windows
Any opening has to be 1.7m above the floor. Side-facing windows must be obscure-glazed.
Balconies
Verandas, balconies or raised platforms are not allowed.
Local Limitations
Roof extensions are not permitted development in designated areas.
Our customers say
FAQ
- Do I need building regulations for a loft conversion?
Yes. To be classed as a proper bedroom your loft would need to be approved by building control or the council. This makes sure it is up to the latest building regulations. Otherwise, your loft will not be classed as a bedroom, just a luxury storage area.