Part B1 Building Regulations, effective from 20.1.2000
2.7 - All habitable rooms in the upper storey(s) of a house served by one staircase should be provided with a window or external door which complies with paragraph 2.11.

2.11 - The window should have an unobstructed openable area that is at least 0.33m² and at least 450mm wide and 450mm high. The bottom of the openable area must not be more than 1100mm above the floor. To comply with regulations the minimum effective opening is 450mm x 750mm in either direction.

Escape window regulations may vary between different UK regions - Check before specifying.

Click links below to download PDF's:

FENSA for Fire Escape FENSA for Fire Escape (8 KB)

NHBC child restriction and escape. NHBC child restriction and escape. (203 KB)

New Build Escape Window New Build Escape Window (22 KB)

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