South West Sydney

Live in the Heart of Sydney’s New Chapter

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Land or House & Land  Now Selling

South West Sydney is no longer the city’s edge – it’s where Sydney’s new chapter is being written, alive with possibility and connection. A world-class airport is taking flight, the $1B Fifteenth Avenue Smart Transit Corridor and new Metro are drawing the city closer, and in places like Austral and Leppington, vibrant neighbourhoods are taking shape with tree-lined boulevards, lush parklands, vibrant dining and shopping spots, and thriving job hubs.

From the convenience of walkable masterplanned communities to the tranquillity of peaceful sanctuaries or the energy of connected urban living, our projects are designed for the way you want to live now and the future you’re building.

Enquire today to explore our Land or House & Land Packages.

Land Map

Find your perfect neighbourhood

Step inside Australia’s new economic powerhouse

3rd

Largest economy in Australia

Fastest

Sydney’s fastest growing region

55%

Population growth by 2024*

Source: forecast.id, April 2024.

200K+

New jobs close to home

5,280ha

Western Sydney Parklands at your doorstep

Lifestyle

Transformative infrastructure & lifestyle upgrades

Airport

New Airport & Aerotropolis precinct emerging

Transport

Seamless transport connections
(New Metro, Fast Corridor, Rail & Motorways)

For over 17 years, we've helped thousands of families turn their housing dreams into reality, through thoughtfully planned estates, trusted delivery, and a deep commitment to quality.

Construction workers

A developer you can trust

With a $1.6 billion pipeline of future projects offering 1,500+ lots for your dream homes by 2030, we're here for the long term, and we deliver what we promise.

Communities poised for long term growth

More than just a block, our estates are strategically located in well-connected neighbourhoods. Each estate offers the best of livability, connectivity and opportunity, then we do everything possible for long-term growth.

Customer consultation

Supporting your land journey with confidence

From your first enquiry to settlement, we're here to make your land-buying experience simple, clear and rewarding. Our customer-first approach means you feel informed, supported and confident at every step – from finding the perfect block to securing your dream home or making a smart investment for the future.

News & Media

View more
South West Sydney development
22 August 2025

Celebrate Community at the South West Family Fun Day

Join us this September in Austral for a family fun day filled with great food, live entertainment, and activities for all ages. Presented by Castle Group and its charitable arm, the Perera Foundation.

New scholarship
27 May 2025

Notable $119.5m sale to shape the future of South-West Sydney suburb​

Interest rate cut
27 May 2025

Interest rate cut to boost demand for homes in Western Sydney

Castle Group projects
27 May 2025

Castle Group's Austral projects set to benefit from $1 billion transport upgrade

Housing stock
27 May 2025

Castle Group boosts housing stock for growing South-West Sydney

Visit Castle Group South West Sales Office

Address:

25 Boyd Street, Austral, NSW 2179

Opening Hours:

Monday to Saturday: 10am-4pm or by appointments.

Enquire today

Enquire now or book an appointment to access detailed information about the available land lots, pricing, estimated development timeline and more.

Enquire today

Enquire now or book an appointment to access detailed information about the available land lots, pricing, estimated development timeline and more.