505 Twelfth Ave, Rossmore is a 0 bedroom, 0 bathroom House with 2 parking spaces and was built in 1998. The property has a land size of 20469m2. While the property is not currently for sale or for rent, it was last sold in May 2013.
Sapphire Estate Agents proudly presents an unbeatable opportunity to secure a registered and ready-to-build block on Twelfth Avenue, Austral one of South West Sydney's fastest-growing and most in-demand suburbs.
Whether you're a first home buyer, investor, or builder this 330m block with 10m frontage offers flexibility, affordability, and incredible future potential (STCA).
Property Highlights:
Unbeatable Location:
On Twelfth Avenue, Austral
Short walk to public school & shops on Tenth Avenue
Close to St. Anthony of Padua Catholic College
Surrounded by parks, schools, and future infrastructure
Future Woolworths Shopping Village nearby
Easy access to M7 Motorway & Western Sydney Airport
Minutes to Austral & Leppington Town Centres
This block is perfect for building your dream home or a strategic investment in a suburb experiencing rapid transformation and government-backed growth.
The size of Rossmore is approximately 16.3 square kilometres. It has 3 parks covering nearly 5.5% of total area. The population of Rossmore in 2016 was 2286 people. By 2021 the population was 2241 showing a population decline of 2.0% in the area during that time. The predominant age group in Rossmore is 10-19 years. Households in Rossmore are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in Rossmore work in a managers occupation.In 2021, 62.60% of the homes in Rossmore were owner-occupied compared with 65.00% in 2016.
Rossmore has 743 properties. Over the last 5 years, Houses in Rossmore have seen a -17.38% decrease in median value. As at 30 November 2025:
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