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60/60/60 is a minute based fire rating. it means the material adequacy under heat duress will last 60mins. then the strutural integrity under heat duress will last 60 mins. lastly the insulation from one structure to the next, under heat duress, will last 60 mins also. 60/60/60! i imagine a...

a shared roof would just require a 60/60/60 firewall to the underside of the roof material, or projecting through it like a "parapet" wall, ala the victorian townhouses. i have a transportable module - 2 storey funnily enough - to fit a 4.2 x 14.4 pre-stressed conc slab. anything is possible -...

yeah i think craigb hit it on the head - setbacks on an 8m lot would be a killer. imagine 1.0 to one side, 1.0 to the other would leave 6.0 of house. also you can build wall to wall without "sharing" a wall - ie have a pair of cavity brick walls abutting each other - basically you could demo...

common walls allow you to build more houses on a lot where there would normally be allowed. it's referred to in WA as a "build strata" scenario - basically, you HAVE to build them the way planning have agreed to before a title will be issued which allows them to be sold. otherwise, you could...