Which legislative instruments introduced the ACT Missing Middle planning reforms?
The ACT Missing Middle planning reforms were introduced through a package of legislative instruments made under the Planning Act 2023, which together amended the Territory Plan and established the new residential development framework.
Planning (Missing Middle Housing) Design Guide 2026 – the primary legislative instrument that amended the Territory Plan to introduce the Missing Middle housing reforms, including changes to residential zone policies and development provisions.
Planning (Missing Middle Housing) Amendment Bill 2026 – a legislative proposal introduced by the Australian Capital Territory (ACT) Government to streamline approval pathways for secondary dwellings, townhouses, terraces, and low-rise apartments. It complements the broader Missing Middle Housing Reforms (Territory Plan Major Plan Amendment 04) aimed at increasing housing supply in established suburbs.
Planning (Residential Zones) Technical Specifications 2026 – commenced on 1 July 2026 and replaced the 2025 specifications. This instrument sets the detailed technical standards for residential development, including requirements for site coverage, setbacks, private open space, landscaping, parking, tree planting, and other design controls that support the Missing Middle reforms.
Reference: Planning (Missing Middle Housing) Design Guide 2026, Planning (Missing Middle Housing) Amendment Bill 2026 & Planning (Residential Zones) Technical Specifications 2026
Short Answer
The ACT Missing Middle planning reforms were introduced through a package of planning instruments under the Planning Act 2023. The key instruments are: Planning (Missing Middle Housing) Design Guide 2026 Planning (Missing Middle Housing) Amendment Bill 2026 Planning (Residential Zones) Technical Specifications 2026
Detailed Explanation
The ACT Missing Middle planning reforms were introduced through a package of planning instruments under the Planning Act 2023, which together support the delivery of more diverse and well-designed housing in established suburbs.
The key instruments include:
- Planning (Missing Middle Housing) Design Guide 2026 – provides design guidance for missing middle housing and supports the implementation of the reforms by promoting high-quality residential design and neighbourhood character.
- Planning (Missing Middle Housing) Amendment Bill 2026 – proposes legislative changes to streamline approval pathways for housing types such as secondary dwellings, dual occupancies, townhouses, terraces, and low-rise apartments, supporting increased housing supply.
- Planning (Residential Zones) Technical Specifications 2026 – commenced on 1 July 2026 and replaced the 2025 specifications. It sets the detailed technical standards for residential development, including requirements for site coverage, setbacks, private open space, landscaping, parking, tree planting, and other design controls, which are used to assess development applications under the Missing Middle planning framework.
No minimum block size does not remove the need for planning assessment.
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