Builders in Canberra 2026, Home Extensions, Renovations, Secondary Dwellings, Cost Guide, and How to Find a Licensed Builder Near You
Canberra builder guide 2026: how much home extensions, secondary dwellings (granny flats), and full renovations cost in Canberra, Access Canberra builder licence requirements, ACT planning rules, and how to get accurate quotes for your Canberra renovation project.
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Canberra has a strong residential building industry. All building work in the ACT must be performed by a licensed builder regulated by Access Canberra (ACT Government). Canberra's high professional incomes and expensive land drive strong demand for home extensions, second-storey additions, and secondary dwellings (the ACT equivalent of granny flats). accesscanberra.act.gov.au
How Much Does a Home Extension Cost in Canberra 2026?
Single-storey rear extension (30sqm, basic), typically $78,000-$135,000 in Canberra
Single-storey rear extension (30sqm, mid-range), typically $128,000-$192,000 in Canberra
Second-storey addition (full floor, approx 100sqm), typically $262,000-$418,000 in Canberra
Secondary dwelling / granny flat (60sqm), typically $145,000-$228,000 in Canberra
Kitchen renovation (mid-range), typically $27,000-$65,000 in Canberra
Bathroom renovation (mid-range), typically $17,000-$40,000 in Canberra
Full home renovation (3-bed home, mid-range), typically $178,000-$372,000 in Canberra
ACT Secondary Dwellings and Lease Variation
The ACT's land lease system means granny flat / secondary dwelling construction may require a lease variation if the additional dwelling wasn't in the original crown lease purpose. The ACT Government has streamlined secondary dwelling approvals in many RZ1-RZ5 zones to increase housing supply. Access Canberra builder licence required. accesscanberra.act.gov.au
This article was compiled by AI and screened before publishing. See our editorial standards.
Covering community in Canberra. This article was generated by AI, under human oversight and our editorial standards. Sensitive material is held for human review before publication. See our editorial standards.
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