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Queensland Housing Code: August Publication and 2026–2029 Transition

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

Queensland’s official QDC index now gives 14 August 2026 as the publication date for the Housing Code entries under MP 1.1 and MP 1.2. Its transition section specifies 1 September 2026 to 1 September 2029. This report was checked 4 October 2026 and corrects the earlier 3 August date.

By The Granny Flat Guide Team. Updated 4 October 2026.

The official transition depends on local adoption

The Business Queensland QDC index says the QHC applies during that transition in a local government area only if its planning scheme is amended to specify how the code applies. Otherwise, previous QDC Parts 1.1 and 1.2 or alternative scheme siting provisions continue.

The current table assigns MP 1.1 to lots under 450 m² and MP 1.2 to lots of 450 m² and over. The boundary includes exactly 450 m² in the latter category. These lot categories are not a granny-flat floor-area allowance or approval for a particular property.

Record the applicable document before changing a design

Ask your approval professional which provisions apply to your property and intended application date. Request the council scheme version, adoption provision if relevant, code chapter and overlays used in that assessment. A publication date by itself is not enough to choose the assessment pathway.

If you already have drawings or an application under way, explain that status before requesting a revision. Ask how the transition affects your actual proposal rather than assuming a statewide announcement automatically changes an existing approval.

Before asking for a quote, identify whether it covers preliminary advice, preparation of an application or the building work itself. Approval costs and construction costs should have separate scopes so a change in one does not hide an allowance in the other. Keep a survey, intended use and the selected plan revision together. Ask separately about site access, services and the floor-area calculation. A supplier’s brochure label does not establish which planning or building provisions apply.

Use the standing Queensland guide for the project checklist

The Queensland granny-flat rules guide provides the broader project questions. The project planner helps record documents and decisions for your adviser, and the floor-plan comparison guide helps describe what you intend to build.

Don’t approve a design change or pay for revised drawings solely from a social-media summary. Get the applicable provisions and requested changes in writing, then ask the supplier to quote that specific revision and completion stage.

This dated article reports the official index and transition explanation checked in October. It does not verify adoption by every Queensland council or make a site-specific approval finding. Other dated regulatory reports are in granny-flat news.

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
  • Queensland PlanningPlanning Act 2016Jurisdiction: Queensland · Effective: Confirm current QLD planning page · Checked on: 2026-09-02 · Layer: planning 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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