Please call us on 1300 433 254 for any further information on bush fire decks. BAL Ratings. Deck Construction requirements. BAL-LOW. No special requirements. BAL-12.5. Enclosed sub-floor spaces - no special requirements for materials, except within 400mm of the ground. No special requirements for framing or supports. applicati ons or where a deck has to take heavier loads such as ti les, spas or even vehicles, a structural engineer will have to be consulted. Terminology used in domesti c deck design and constructi on are illustrated in Figure 1. Figure 1: Components used to make up a ti mber deck Stringer Concrete pad Treads Hand rails Balusters Posts Decks, Driveways and More. There are many features you can add to your home as exempt or complying development. Exempt development means you don't need to apply for Council permission, but you must follow any relevant building rules. Complying development means you must apply to an accredited certifying authority for approval. A building assessed in Section 2 as being BAL-29 shall comply with Section 3 and Clauses 7.2 to 7.8. NOTE: There are a number of Standards that specify requirements for construction; however, where this Standard does not provide construction requirements for a particular element, the other Standards apply. Urban design guidelines have been developed in partnership with our subdivision developers to ensure streetscapes and houses in our new communities are well designed. The guidelines set out the key priorities and principles in relation to single lot typologies, detached home siting and design, access, landscaping and sustainability.