Technical Booklet E Fire Safety·Page 44·2.27
Smoke alarm location requirements
Smoke alarms must be positioned within specified distances from bedroom doors, living room and kitchen doors, and along circulation routes to ensure adequate coverage in a dwellinghouse.
Smoke alarms should be located in the circulation route or routes of a dwellinghouse so that there is one –
(a) not more than 3 m from every bedroom door;
(b) not more than 7.5 m from every door to a living room or kitchen; and
(c) where a circulation route on a storey is more than 15 m long – not more than 15 m from another smoke alarm on the same circulation route and storey.
Source — /Users/richardhill/Documents/planning-arch-project/data/documents/regional/Technical Booklet E - Fire Safety.pdf