By TAZ Building Group – Reliable Home Builders in ACT
Considering building a dual occupancy house in Canberra? These homes are ideal for expanding families, investors, or anyone who wants to optimise their land. But before you begin, it’s crucial to understand the legal requirements—particularly in the ACT.
What is Dual Occupancy?
Dual occupancy refers to constructing two houses on a single block. These can be:
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Attached (e.g. duplex)
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Detached (two separate dwellings)
People prefer dual occupancy to live in one and lease the other, accommodate family, or sell both homes after subdivision.
1. Zoning Regulations in ACT
What Zones Allow Dual Occupancy?
Not all blocks in Canberra allow dual occupancy. ACT zoning laws—especially in RZ1 and RZ2 zones—set limits on what you can build.
Key Zoning Notes:
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RZ2 zones are more flexible for dual occupancies
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RZ1 is stricter and comes with detailed conditions
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Minimum block size, frontage, and driveway access are essential
???? Tip: Speak with experienced residential builders in Canberra—like us—before finalising your plans.
2. Subdivision Rules
Selling Two Homes Separately?
To sell each home individually, you must legally subdivide the land.
Subdivision Requirements:
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Meet minimum block size
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Provide separate utility connections (water, sewer, electricity)
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Ensure legal driveway access to each dwelling
❌ Poor planning can lead to rejection—let our experts help you get it right the first time.
3. Development Application (DA)
Is DA Always Required?
Yes, most dual occupancy projects need a Development Application unless specifically exempt.
What the DA Involves:
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Site layout and elevation plans
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Shadow diagrams
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Privacy and solar access compliance
The ACT Planning and Land Authority (ACTPLA) reviews applications thoroughly. TAZ Building Group ensures your DA is correctly submitted the first time.
4. Knock Down Rebuild Options
Upgrading an Old Home?
Many Canberra homeowners choose to knock down an existing house and build two new dwellings.
Requirements Include:
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Demolition approval
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Asbestos testing and safe removal
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Proper waste disposal and environmental plans
????️ TAZ Building Group handles everything—from demolition to the final build.
5. Bushfire and Heritage Zones
Extra Conditions for Some Areas
Some Canberra suburbs have special restrictions.
Watch Out For:
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Bushfire zones – need fire-rated building materials (BAL rating)
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Heritage areas – design limitations apply
Check with the ACT ePlan tool or local council before designing your home.
Why Choose TAZ Building Group?
TAZ Building Group is one of the most trusted residential builders in Canberra, with years of experience in dual occupancy projects.
We Offer:
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Expert knowledge of ACT zoning & planning rules
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Seamless DA and subdivision support
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Full-service knock down rebuild solutions
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Transparent and hassle-free project management
Final Word
Dual occupancy homes are a smart investment, but legal requirements in Canberra can be complex. With the right guidance and a trusted builder like TAZ Building Group, your project will run smoothly—saving you time, money, and stress.
???? Contact TAZ Building Group today for a free consultation and expert advice on your dual occupancy dream.
Read More:- What Are Dual Occupancy Homes and Are They Right for You?