Building a house on acreage is a different exercise to a standard suburban block. There’s more room to design around, but also more to plan for before the first sod turns, from what your block can actually carry to what your council will sign off. This guide walks through what changes on a larger block, so you know what to ask before you commit to a design.
What Counts as an Acreage Block
Most acreage blocks sit outside the standard suburban subdivision size, generally two hectares or more, depending on the council’s zoning, and often carry planning overlays a standard block does not, such as a minimum lot size, a bushfire rating, or restrictions on what can be built and where. Before you commit to a design, it’s worth confirming your block’s zoning and any overlays directly with your local council, since these vary between local government areas.
What a Site Assessment Tells You Before You Design
Every acreage block behaves differently: slope, soil, existing vegetation, and where services stop at the boundary. That’s why we start with a site assessment before drawing a plan. A contour survey and borehole report tell us what footings your home will need and where on the block it makes sense to sit, rather than designing first and adjusting for the site afterwards.
Water, Power and Wastewater on a Bigger Block
Services that arrive at the boundary on a suburban block often need to be run in on acreage, and some acreage blocks sit outside town sewer altogether. That generally means:
- Rainwater tanks rather than mains water, sized to genuinely cover the household through a dry summer
- An on-site wastewater system, commonly a septic or aerated system, where town sewer isn't available, which needs council approval before it's installed
- Power, and in some cases NBN or phone connections, run in from the road, which adds to your site costs depending on distance
None of this is unusual on acreage, but it’s easy to underestimate the cost and lead time if it isn’t priced in from the start.
Building to Your Bushfire Attack Level
Most acreage around Sydney sits on land mapped as bushfire prone, and what you can build is shaped by your Bushfire Attack Level (BAL) rating under the NSW Rural Fire Service’s Planning for Bush Fire Protection framework. It affects everything from window glazing to cladding and roofing material. Your BAL rating is assessed as part of your development application, and it’s worth having early, since it can affect your design and material choices well before construction starts.
Designing Around the Land, Not Against It
The advantage of acreage is that you’re not locked into a standard block’s orientation. That means you can genuinely design toward solar north for your living areas, take in a view without overlooking a neighbour, and use a wraparound verandah to shade the home in summer and let winter sun in. A longer driveway and more distance from neighbours also change how you think about street presence and privacy, which is worth discussing with your designer early, rather than after the floorplan is set.
A Design Built for Acreage Living: the Beaumont
Our Beaumont design was built with acreage living in mind: five bedrooms, three bathrooms and a double garage across 288m², with a resort-style master suite overlooking a private verandah and a separate games room adjoining the alfresco for family living that spreads out rather than stacks up. Every acreage design we offer, including the Beaumont, can be adapted to your specific block once your site assessment is done.
What Acreage Adds to Your Build Cost
The same factors that affect any custom build, your floorplan, storey count and inclusion tier, still apply on acreage, but site costs tend to carry more weight. Longer driveways, extended service runs, and engineering for wastewater and stormwater on a larger block all add to what a straightforward suburban block would cost.
Every BuildTec home starts with our Classic Collection as standard. Moving to Prestige adds $12,000 on a single storey home or $15,000 on a double storey or acreage home, and moving to Platinum adds $35,000 or $45,000 respectively. Because site costs vary so much between blocks, we walk your specific site before putting a number in front of you. See our guide to the cost to build a house in Sydney for how the rest of your build cost breaks down.
Where We Build on Acreage
We build acreage homes across the Hawkesbury and the surrounding acreage pockets of Greater Sydney, where bigger blocks and more breathing room are part of the appeal. If you’re weighing up a block in the area, we’re happy to talk through what it can carry before you commit to a design.
FAQs
Frequently Asked Questions
Straight answers to the questions we hear most before a build begins.
What counts as an acreage property?
There’s no single national definition, but most councils treat a block of roughly two hectares or more as acreage, and it usually comes with its own zoning and planning overlays. Check with your local council for the exact minimum lot size and any restrictions that apply to your specific block.
Do I need a bushfire assessment before I build on acreage?
If your block is mapped as bushfire prone, which is common across acreage areas around Sydney, your Bushfire Attack Level rating needs to be established as part of your development application, since it affects your design and material choices.
How much extra does an acreage block add to my build cost?
It depends on the block: site access, how far services need to run, and what your wastewater system requires all play a part. We walk every acreage block before pricing, so you get a figure based on your site rather than an average.
Can the Beaumont be adapted to my block?
Yes. While the Beaumont is designed with acreage living in mind, every design we offer can be adapted to suit your specific site once your site assessment is complete.
