Knockdown Rebuild: a smart investment in your dream home

A report by the Urban Development Institute of Australia (UDIA) highlights a growing challenge for homeowners in the Greater Sydney Mega Region (stretching from the Illawarra to the Hunter): a severe shortage of greenfield land. By 2030, the undersupply is expected to exceed 25,600 sites.

Demand for new homes in the region is estimated at around 14,000 a year through mid-2029. At the same time, median lot sizes have decreased 62sqm since 2015 and the price per square metre has doubled (HIA data). To address this shortage, home demolitions continue to rise, with 77,279 dwellings approved for demolition in NSW between June 2019 and June 2025 (ABS data).

For those looking to build in established suburbs, a knockdown rebuild is a smart investment, combining long-term value with the opportunity to design a home that suits your lifestyle perfectly. But before purchasing an older home for demolition, it’s essential to do your homework.

Consider location carefully

Location is one of the most important factors when purchasing land for a knockdown rebuild. Consider how the area will suit your family’s evolving lifestyle:

• Proximity to transport, schools, shops, and services

• Access to your workplace and recreational amenities

• Distance from family and friends

A well-chosen location ensures your new home not only meets your needs today but continues to serve you well into the future.

Simple blocks make life easier

When selecting land, simpler blocks often lead to smoother and more cost-effective builds.

• Steep or irregular blocks may appear affordable but can increase construction costs and complicate access during and after building

• Homes by ZAC has extensive experience designing on sloping or challenging sites, minimising excavation and fill while preserving natural drainage and preventing erosion

While more complex blocks can present challenges, thoughtful design ensures your dream home works with the site, not against it.

Orientation and outlook

A block’s orientation and outlook are critical to maximise natural light, energy efficiency, and views.

• Observe the sun’s movement across your block at different times of day

• Understand setback restrictions that may limit repositioning of your new home

• Strategic placement can optimise views, natural light, and cross-ventilation

Careful planning at this stage ensures your new home is bright, airy, and welcoming.

Privacy matters

Privacy is a key consideration in any new build.

• Check neighbouring properties and existing layouts to avoid windows facing directly into adjacent homes

• Even if privacy isn’t currently an issue, plan for potential future developments nearby

• Thoughtful orientation and landscaping can create a private sanctuary for your family

Work with a Knockdown Rebuild specialist

Homes by ZAC is a specialist in the area of knockdown rebuild. Whether your block is sloped, narrow, above or below the road, we’ll work with you to create a contemporary, functional, and beautiful home that fits your lifestyle and budget.

We handle every aspect of the process, from site assessment and demolition to design, approvals, and construction, ensuring a seamless, stress-free experience.

Build your dream home with Homes by ZAC

At Homes by ZAC, we build with craftsmanship, respect, integrity, and pride, delivering homes that our customers love to live in. Call us on 1300 350 793 or submit an online enquiry to start designing and building your dream home today.