Planning rules in Tasmania

Currently up to 60 m². A 2026 amendment to increase the cap to 90 m² is out for consultation but not yet in force.

In the General Residential Zone the acceptable solution is 325 m² of site area per dwelling, so about 650 m² for two. A smaller lot is not automatically ruled out - the performance criteria allow a lesser site area where infrastructure can cope and either the density suits the surrounding area or the project delivers a significant social benefit close to services.

You can if subdivision is permitted or discretionary in your zone and each lot meets the zone's lot design standard for area, frontage, access and building area - or can be justified against the performance criteria. There is no single statewide minimum: the General Residential Zone standard is indicatively in the few-hundred-square-metre range while Low Density Residential and rural zones are much larger, and your council's Local Provisions Schedule is what applies to your land.

Not for a deck less than 1 m above the ground, which is low-risk work needing no building permit or building surveyor. A deck 1 m or more above the ground is notifiable work and must be handled by a building surveyor.

Roughly 18 m² for a shed built on site, or up to 36 m² for an engineered or prefabricated kit shed — classed as 'low risk work' with no building permit. You just notify council on completion.

Up to 2.1 m for a timber or Colorbond fence as low-risk building work, and 1.2 m for a free-standing masonry or concrete wall. Within 4.5 m of the street a solid fence is capped at 1.2 m, or 1.8 m if it is at least 30 per cent transparent above 1.2 m.