PropertyFlags

What the registers show,
in aggregate

Our reports read government registers one address at a time. These analyses read them whole: trends, outliers and changes over time, from the same official sources as our address reports. Everything is published under CC BY 4.0 with the method stated in full.

Latest19 Oct 2026

Western Sydney Airport opens with no curfew. We counted the addresses under its night noise

We checked every NSW street address against the government's own noise contours for Western Sydney International. By 2033, between about 5,100 and 18,000 addresses hear two or more aircraft louder than 60 decibels on an average night, depending on whether the quieter night runway mode is preferred; by 2040 the upper figure is 30,700 and by 2055 44,900. With no runway preference, St Marys has 6,184 addresses in the 2033 contour, six in ten of the suburb; where the quiet mode is preferred, none. A separate planning contour already binds development across 3,667 addresses in eleven localities.

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Research15 Oct 2026

A quarter of NSW's new home applications this year sit on bushfire prone land

5,101 development applications proposing 7,617 dwellings in twelve months sit on the RFS Bush Fire Prone Land map, 25.5% of all new home applications. On the North Coast and in the South East and Tablelands it is nearly half. In the inland area AFAC shaded for increased fire risk this El Niño spring, 43% of applications are on the map and one in four of those sites is more than 5 km from any fire station.

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PropertyFlags · Sydney, Australia · ABN 23 142 520 951 · hello@propertyflags.com.au. Payments are processed by Stripe; we never see your card details. The register responses behind every paid report are kept for 90 days after purchase; email us and we send you the file. Address search uses G-NAF © Geoscape Australia, licensed by the Commonwealth of Australia under the Open G-NAF End User Licence Agreement. Contains data © the States and Territories of Australia and other suppliers, reproduced under Creative Commons Attribution licences.