Resource

Every assumption, in one list.

A short, defensible list of the assumptions a residential feasibility relies on — and the typical range each one moves within.

Revenue assumptions

  • Per-unit pricing: pulled from comparable sales no older than 3 months.
  • Selling cost: 1.5–2.5% of GRV.
  • Marketing: ~0.5% of GRV.
  • Settlement profile: tail-loaded, 6–12 months from PC to last settlement.

Cost assumptions

  • Construction rate: current QS or recent build, not 2023 numbers.
  • Professional fees: 7–10% of construction.
  • Contingency: 5–7.5% of construction.
  • Statutory: per current schedule, suburb-specific.

Finance assumptions

  • Equity ratio: usually 25–30% of TDC.
  • Senior rate: current bank-quoted rate (not last cycle's).
  • Establishment fee: 1–1.5% of facility.
  • Line fee on undrawn: 50–100bps.

Timing assumptions

  • Design and approvals: 6–12 months for boutique apartments.
  • Construction: 14–24 months for 4–6 levels of apartments.
  • Settlement: 3–9 months tail.

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