This approved document deals with the following requirement from Part Q of Schedule 1 to the Building Regulations 2010. PART Q SECURITY Unauthorised access Q1 Reasonable provision must be made to resist unauthorised access to: (a) any dwelling; and (b) any part of a building from which access can be gained to a flat within the building. Limits on application Requirement Q1 applies only in relation to new dwellings. Performance Requirement Q1 applies to easily accessible doors and windows that provide access in any of the following circumstances: a. into a dwelling from outside b. into parts of a building containing flats from outside c. into a flat from the common parts of the building. In the Secretary of State’s view, doors and windows will meet requirement Q1 if they can resist physical attack by a casual or opportunist burglar by being both: a. sufficiently robust b. fitted with appropriate hardware.