Planning & Building Regulations

Planning Permission and Building Regulations can be a tricky subject when building home extensions, so it's important to refer to the most relevant and up-to-date information. The Planning Portal is the best source of information for Planning and Building Regulation information for conservatories and extensions. Also, please download the GGF's 'A Guide to Good Practice' below for a detailed overview of the specification and installation of conservatories within the United Kingdom. 

Download 'A Guide to Good Practice' here

Definition of a Conservatory

Although the definition of a conservatory has been removed from Approved Document L1B for England, the other countries within the UK have maintained the definition as being a substantially glazed extension to an existing building.

The accepted definition of a conservatory is that it should be substantially glazed. Substantial glazing is seen as being 50% of new walls, glazed with transparent materials and 75% of the roof glazed with either transparent or translucent materials. Although not contained within the Building Regulations for England, it is generally accepted that this definition is still valid for England and is used by many Local Authority Building Control Bodies (LABC).


A Solid Roof Construction / Replacement

Solid roofs are now being marketed to provide a building with a wall structure similar to a conservatory but with a solid, highly insulated roof that may have a range of decorative finishes such as slate or tile. Ultraframes current versions of this type of roof are Livinroof and Ultraroof380.

Due to the accepted definition of a conservatory and the need to have a substantial area of the roof glazed, these structures are not usually exempt from Building Regulations and require Building Regulation approval through a recognised Building Control Body.

Although these buildings may be able to be built under the same legislative requirements as conservatories, the modifications and the intended use may result in the building no longer meeting the requirements for exemption from the Building Regulations. This is particularly relevant if the doors are being removed from between the house and the solid roof extension.


Summary of the Livinroof and Ultraroof380 Building Regulations Process

The information below will help you prepare for the installation of a Livinroof and Ultraroof380 system. 

Ultraframe can assist you in obtaining Building Regulations for your new project. Please download the guidance notes and JHAI application form for Building Regulations approval. 



Ultraframe have partnered with JHAI to provide a quick and easy way of ensuring your project is compliant with Building Regulations. If you have any questions regarding the process please look at the FAQs page or give JHAI a call on 0800 121 6062.

Download Solid Roof Building Regs Guide & Application form


LABC Partner Authority Scheme

The LABC Partner Authority Scheme is another scheme which allows companies to submit their building regulations applications to one local authority regardless of the project’s location.

Download LABC Partner Authority Scheme Brochure