Feasibility report
Find out what your rooftop is worth.
Set your building type, roof area and city below for an instant estimate, then request the full structural suitability report prepared for your address.
Feasibility & ROI Estimator
What is your rooftop worth?
180m²
50m²500m²+
How we calculate this
- About 62% of a roof is typically usable once plant, lift overrun, setbacks and access are excluded. Commercial flat roofs are adjusted up slightly, mixed-use marginally.
- Usable area is divided by the 80m² home footprint and capped at four homes for a single crane-lift program.
- Gross value uses an indicative top-floor apartment rate per square metre for the selected city, shown as a ±15% range.
- Delivered cost is allowed at $420,000 per home, covering the module, crane, services connection, approvals and professional fees.
- Net uplift is gross value less delivered cost. Structural strengthening, if required, is additional.
Estimated outcome
1home of 80m²
- Indicative gross value
- $1,122,000 – $1,518,000
- Less delivered cost
- −$420,000
- Indicative net uplift
- $702,000 – $1,098,000
Estimates are indicative only and subject to structural assessment, site access and planning approval.
What the full report includes
- Roof geometry review and usable-area plan showing indicative home placement.
- Preliminary structural commentary on load paths and likely strengthening scope.
- Access and crane strategy, including street and airspace constraints.
- Planning pathway and the approval steps applicable to your council.
- Indicative cost range, program and value uplift for your building.