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Tasmania 90sqm Proposal: Consultation and Assessment Update

Concept of a modest weatherboard granny flat beside a main brick home
A compact backyard granny flat.

The advertised consultation on Tasmania’s proposed 90 m² secondary-residence allowance closed on 22 July 2026. The Tasmanian Planning Commission record subsequently lists September hearings and directions. Its decision section had no published decision when checked on 2 October 2026.

Correction, 2 October 2026: our August article incorrectly described the original exhibition as still open. We have corrected the timing and removed advice to treat the proposed area allowance as settled.

The official assessment record

The Commission’s amendment record identifies draft SPP amendment 01/2026 and its proposed increase from 60 to 90 m² gross floor area. It provides the draft, explanatory material, representations and subsequent assessment documents. Those stages are more useful for tracking the proposal than an undated summary saying consultation is “current”.

A hearing or direction is part of the assessment process. It is not, by itself, a commencement notice for amended provisions. Readers should check for a decision and the operative wording before relying on the larger figure in an application.

What property owners should establish

Ask the relevant planning authority which provisions apply to your address and proposed use. Give it a site plan and explain whether your concept depends on an area allowance that is still proposed. A supplier’s willingness to sell a larger module does not settle whether it can be approved on the property.

Our Tasmania rules guide explains the design and contract questions. If comparing options, keep the current-rule design and a larger concept clearly labelled. Don’t represent an unapproved larger version as a guaranteed upgrade available by the delivery date.

The construction quote also needs its own scope. Identify delivery, foundations, connections, fit-out and professional fees rather than assuming a larger area simply adds a fixed price per square metre.

How to follow the next stage

Use the Commission record for published directions and any further submissions process. Keep the relevant notice with your project records so its date and scope remain clear. The original exhibition deadline has passed; a later opportunity to participate needs to be supported by a specific direction or notice. Don’t assume a general contact address means another unrestricted consultation period is open.

Before signing a supply contract, ask how changes in the planning position would affect deposits, design fees and production dates. An early concept can help a discussion, but it shouldn’t conceal an unresolved approval dependency.

We will distinguish proposals from operative changes in our policy news. For comparison with other jurisdictions, use the state rules guide; another state’s area allowance does not determine the Tasmanian outcome.

Primary sources

These cards are an editorial summary of official pages. The Granny Flat Guide is not a certifier, council or licensed builder. Check the live official URL before you lodge or sign.

  • Your Home (Australian Government)Your Home: Australia's guide to environmentally sustainable homesJurisdiction: Australia · Effective: Living resource (check current page) · Checked on: 2026-09-02 · Layer: editorial summary
  • Australian Building Codes BoardNational Construction CodeJurisdiction: Australia · Effective: NCC 2022 (confirm current edition) · Checked on: 2026-09-02 · Layer: building approval
  • Victorian Building AuthorityBuilding Act 1993 / small second dwelling settingsJurisdiction: Victoria · Effective: Confirm current VBA guidance · Checked on: 2026-09-02 · Layer: building approval
  • QBCC (Queensland)Queensland Building and Construction Commission licensingJurisdiction: Queensland · Effective: Confirm current QBCC page · Checked on: 2026-09-02 · Layer: building approval

See our editorial standards for how we research and update guides.

About The Granny Flat Guide

Independent Australian research on secondary dwellings and backyard housing. We publish cost guides, council rules and supplier reviews. We are not a builder. See our editorial standards.


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