Insights
Plain-language guides on airspace ownership, approvals, cost and construction — written for Australian strata committees, building owners and investors.
Airspace basics
Yes — rooftop additions are legal in Australia when the owners corporation approves the airspace, council grants development consent and an engineer confirms the structure. Here is how each step works.
6 min read
Legal & strata
How airspace above strata and commercial buildings is owned, how it is valued, and the legal steps to sell or develop it in NSW, VIC and QLD.
7 min read
Cost & finance
An indicative cost breakdown for a rooftop home in Australia: module supply, crane and logistics, structural works, services, approvals and professional fees.
6 min read
Market
Sydney's mid-century strata stock, planning controls and housing shortage make it Australia's strongest market for rooftop homes. A precinct-by-precinct view.
5 min read
Planning
What gentle density means in NSW planning, why rooftop additions are among the least disruptive forms of it, and how it compares with greenfield and tower development.
5 min read
Construction
A side-by-side comparison of offsite modular and conventional on-site construction for rooftop additions: weight, program, disruption, cost certainty and quality.
5 min read