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Fixed Site Costs - No Surprises on Your Build

Written by Admin | Nov 11, 2026, 4:52:01 AM

You've found your block, chosen your design and worked out your budget. Then the site reports come back, and suddenly there's an extra bill for soil, services or sustainability requirements you didn't see coming.

Site costs are one of the biggest unknowns in building a new home. They depend on what's under and around your land, and you often don't know the full picture until after you've started.

That's why we're fixing them upfront.

What are site costs?

Site costs cover the work needed to get your land ready to build on and to meet building requirements. They vary from block to block, which is why they're hard to pin down early. Our Fixed Site Costs package covers three areas:

BASIX

NSW's sustainability requirements for new homes, covering things like energy, water and thermal performance.

Site Services

Connecting your new home to the essential services it needs.

H-Class

Extra work needed when your block has highly reactive soil, such as engineered footings or slab design.

How Fixed Site Costs work

With Fixed Site Costs, the applicable BASIX, site services and H-Class costs are set in your quote from the start. Once you proceed, those prices stay fixed.

That means even if your Site Specifics reports turn up something unexpected, your price for those items won't change. You know what you're paying before you commit.

Good to know

  • It's a complete package, so all applicable items across the three categories are fixed together
  • The items that apply depend on your block and design, and your New Home Advisor will run through them with you
  • Exclusions apply to individual items, so check your quote carefully

Plus

An 18-month price lock

When you choose Fixed Site Costs, you also get an 18-month price lock, valued at $14,520. Your contract price is fixed for 18 months from the date of contract.

This is ideal if you've bought in a new estate and your land hasn't registered yet. You can lock in your price now and be ready to start building as soon as your land is registered.

Who's eligible?

To be eligible, you need to:

  1. Choose a home from the Primary or Dual Living Series
  2. Sign a New Home Estimate
  3. Pay the initial fee within 14 days of your estimate being issued
  4. Proceed to contract

The price lock isn't available on Focus Series designs. To keep your price locked, you'll need to keep approvals, finance and land registration moving, and avoid significant design changes after signing. Read the full terms and conditions on our promotion page.

$10,000

Prefer $10,000 off instead?

If certainty isn't your priority, you can choose $10,000 off your build instead. Your New Home Advisor can help you work out which option suits your block and timeline.

Why lock things in now?

Waiting can feel like the safe option, but it often leaves more to chance. Fixed Site Costs and a price lock mean:

  • ✓No surprise site cost bills once your reports come back
  • ✓A clear build cost to take to your lender
  • ✓Your price protected while you wait for land registration
  • ✓Your design and selections sorted, so you're ready to go

Combined with our 24 Week Build Guarantee, you get more certainty from signing to handover.

Talk to us before you wait

Every block is different, so the best way to understand your site costs is to talk to one of our New Home Advisors. Visit us at Lochinvar, Sovereign Hills, Scone, Wyee, Hunter Homeworld or Port Macquarie.

Or call us on 1300 289 466