What is part Q?

New designed house in black with floor to ceiling windows for more light

Building regulation Part Q came into effect on October 1st 2015, with compliance phased over 12 months, and affects any residential building, renovation or refurbishment project that requires planning permission.

All plans or building notices submitted after 1st October 2015 have to comply with Part Q, which relates to any door or window installed in a ‘dwelling’ (including flats and apartments) and which can be easily accessed by a burglar, including balcony and patio doors, and units installed above flat or gently sloping roofs within 3.5m of ground level.

To meet Part Q requirements, windows and doors must satisfy new standards of robustness, use approved hardware, and demonstrate proven security performance.

What evidence is required?

Part Q compliant windows and doors must have either:

  • test evidence for each individual unit
  • third party certification of compliance
  • proof of compliance with Appendix B – supplied with products already meeting Part Q requirements.

Who must comply?
Anyone who requires planning permission to build, renovate or refurbish a residential dwelling - architects, builders, installers and building owners, including home-owners and property developers. For more information, visit www.planningportal.gov.uk