To qualify as a conservatory for exemption from Building Regulations the building must:
- Have a roof with transparent or translucent material for at least 75% of its area.
- Have walls glazed with transparent material for at least half their area.
- Be sited at ground level.
- Be under 30m² floor area.
- Have an external grade door between house and conservatory. (Should you wish to create an open-plan conservatory we can advise on suitable glazing to ensure compliance with Building Regulations).
- Have a heating system (if any) which is separate from the central heating for the main house or which can be separately controlled (e.g. with thermostatic radiator valve or on/off switch).
- Comply with Building Regulations Part N and be glazed with toughened safety glass.
You cannot install any plumbing or drainage in a conservatory without seeking Building Regulation approval. Our advice on Building Regulations is issued as a guideline only. For more detailed or up to date information, Home County DIY Conservatories recommend that you contact the appropriate Planning and / or Building Control Department of your local Council and obtain written confirmation of specific terms relating to your own property.