Can I retain my existing house and create a dual occupancy?
Yes, potentially. The ACT Missing Middle Housing Design Guide specifically illustrates dual occupancy development where the existing dwelling is retained and a second dwelling is added. The completed development must still comply with the applicable Residential Zones Policy requirements, including site coverage, setbacks, private open space, planting, parking and access.
Reference: Planning (Missing Middle Housing) Design Guide 2026 – ACT Missing Middle Housing Design Guide & Territory Plan 2023 – Part E01 Residential Zone Policy – Territory Plan 2023 | Notifiable instruments
Short Answer
Yes, potentially. You may retain your existing house and add a second dwelling to create a dual occupancy, provided the overall development meets the applicable planning requirements.
No minimum block size does not remove the need for planning assessment.
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