Updated every day

Every address in NSW.
On-market or off.
Updated daily.

We track the market status of 4,905,892 New South Wales addresses and publish it as a daily CSV and a REST API.

View pricing Get an API key

Live in NSW today · VIC, QLD and other states rolling out before 2027

4,905,892

NSW addresses tracked

Daily

Market-status refresh

~1.1%

On the market at any time

How it works

Two clocks, deliberately. The address base moves quarterly. The market status moves daily.

The address base

4,905,892 addresses

Our address list is the Geocoded National Address File (G-NAF), Australia’s authoritative address register, published openly by Geoscape Australia. We load the complete NSW set (May 2026 release, GDA2020 datum) and collapse duplicate alias records onto their principal address, so every row is one real place.

We refresh it every quarter — because that’s how often the register actually changes, and it barely does. Between the February and May 2026 releases, NSW gained 15,482 addresses: a 0.34% change. Addresses are near-static. What changes daily is their market status.

The status layer

Updated daily

Our daily indexer reads publicly published property-market signals, joined to licensed open government address data. Each run builds a complete picture of every property currently advertised for sale in NSW, matches each one back to its address in the register, and updates that address’s status.

Anything that stops appearing is marked off-market only after a 3-day confirmation window, so a listing that briefly drops out and returns doesn’t flip your data back and forth.

How we measure accuracy

…and why “accuracy” is the wrong word.

At any given moment, only about 1.1% of NSW addresses are on the market — roughly 51,000 out of 4.9 million.

98.9%

A system that simply labelled every address “off-market” would score 98.9% accuracy — and be completely useless. It would find zero listings.

So we don’t report accuracy. We report recall (of the properties genuinely on the market, how many did we catch?) and precision (of the properties we flagged, how many really are listed?) — measured only on the on-market class, where the signal actually lives.

If a vendor quotes you a single “accuracy percentage” on this data, they’re quoting you the base rate.

What we don’t capture

…and won’t pretend to.

Off-market and pre-market sales

Properties sold quietly, without public advertising, appear in no public index. Industry estimates put this at 3–8% of genuine sales. We can’t see them, and neither can anyone else working from public data.

Address-withheld listings

Some agents advertise without a street number (“address available on request”). We can see the suburb but can’t pin it to a specific address — so we don’t guess.

New-build and house-and-land projects

A large share of advertised stock in growth corridors is off-the-plan or land packages that don’t correspond to an existing dwelling. We classify these separately rather than forcing them onto an address.

Brand-new subdivisions

Addresses created since the last quarterly register release won’t exist in our base until the next one — up to three months.

Regional coverage is thinner than metro

We state this plainly rather than averaging it into a flattering statewide headline.

What we publish

Facts, not content: an address, a suburb, a postcode, a boolean, and a date.