It is not unusual for the roof space in a dwelling to be used to accommodate storage space or additional living space. The latter is defined as a Conversion under the Building Act 2003, and requires a building warrant whether physical alterations are made or not. For storage purposes it may also be the case that structural alterations are necessary, bringing in the requirement for warrant.
This web page explains what work may require Building Warrant permission from the Council's Building Standards service and highlights possible design considerations.
Building Access - Alteration - Conversion Warrant
Requirement
If you propose to use the roof space as a bedroom, study or other room or if you intend to carry out works such as structural alterations, installing a roof light, providing heating, lining walls and ceilings or installing electrical power points you will require to submit an application for a Building Warrant to your Council along with detailed plans showing full compliance with the Building Standards.
It is important that professional advice is sought and all approvals are obtained from your Council before any work starts.
No Building Warrant Required
If you only propose to floor the roof space for light domestic storage without overloading the roof structure and access from the lower storey is by way of a retractable/removeable ladder then Building Warrant approval from the Council's Building Standards service is not required.
Warning
If you do not obtain all necessary approvals for work in the roof space legal problems can arise and the safety of your property and the occupants may be affected. You may also find that difficulties could arise during the sale of your property following a normal property enquiry carried out by a solicitor.
Planning Requirement
In detached, semi-detached or terraced houses which are not Listed and are not within a Conservation Area Planning Permission is not required providing:
• Any roof light does not project more than 100mm above the plane of the roof.
• Any roof lights do not cover more than 10% of the roof area.
Planning Permission is always required for dormer windows in dwellings and to install roof lights in flats.
Notes
This guidance page gives you a broad view of the requirements for using the roof space in dwellings.
For further information about the content of these web pages and specific guidance on the type of work that requires a Building Warrant please contact Anthony who will be happy to discuss your requirements.
