1What will be built

Don't know the floor area? Work it out with the Bulk Estimator.

Floor area

m²

All floors added up

Saleable

Most of the floor area is sold.

2What it will sell for

Sale price per m² of saleable area

Including GST. E.g. a 120 m² home selling for $1.2m is $10,000/m².

The developer is GST registered — GST (3/23 of the sale price) goes to IRD, so it's taken off the sales. Costs are entered without GST.

3What it costs

Starting figures are examples — replace them with your own.

Build cost

$/m²

Per m² of floor area

Contingency

Of build cost

Professional fees

Architects, council fees, planners, engineers — % of build cost

Marketing & sales

Of sales, incl. agent fees

Finance & holding

Interest, rates and insurance until sold

Other costs

Development contributions, Watercare charges, demolition, site works

4Developer's margin

Margin

Measured on

Profit as a % of everything spent, including the land.

Put your name and logo on reports

Land value estimate

Site estimate

10 November 2026

Groundwork

Enter the floor area and what it will sell for to see what the land is worth.

Prepared with Groundwork. Indicative only — not a consent assessment, valuation or legal advice. Confirm with a planner, valuer or quantity surveyor before relying on it.

Land Value Estimator

Site estimate