Build New or Buy Old? Why a Home and Land Package in Perth Is the Smarter Move in 2026

It’s the question every property buyer in Perth eventually asks: should I build a new home, or buy an established one? It seems like a simple choice, but when you dig into the numbers, the warranties, the ongoing maintenance, and the lifestyle factors, building new comes out ahead in almost every category.

Here at B1 Homes, we’ve helped thousands of West Australians navigate this exact decision. This guide breaks down the real costs and benefits of both options, so you can make a confident, informed choice, with nothing hidden and nothing glossed over.

The Hidden Price Tag of Buying an Established Home

When buyers look at established homes in Perth, the purchase price is only the beginning. What many first home buyers, and even experienced property buyers, fail to account for is the ongoing cost of maintaining an older property.

Research from WhatSTheDamage.com.au (2026) found that the average Australian homeowner spends between $8,000 and $15,000 per year on home maintenance, repairs, and replacements, on top of their mortgage, council rates, and insurance. And that figure climbs steeply with age: older homes (those 30 years or more) typically cost 50 to 100 per cent more to maintain than homes under 10 years old.

“Most first home buyers underestimate maintenance costs by 40–60%. Older homes typically cost 50–100% more to maintain than homes under 10 years old.” — WhatSTheDamage.com.au, 2026

Common maintenance bills buyers of older Perth homes face include:

• Roof replacement: $8,000–$35,000 depending on size and materials
• Full house rewiring: $8,000–$23,000
• Kitchen renovation: $15,000–$45,000
• Bathroom renovation: $10,000–$25,000
• Hot water system replacement: $1,200–$6,000
• Plumbing repairs and repipes: $2,000–$15,000+

A common rule of thumb used by financial advisers is to budget 1–4% of a property’s value every year for maintenance and repairs. On a $750,000 established home in Perth, that’s potentially $7,500 to $30,000 per year, ongoing costs that simply don’t exist in a brand-new property.

What You Get When You Build New: The B1 Homes Warranty Difference

When you build a new home with B1 Homes, you’re not just buying four walls and a roof. You’re buying certainty. That certainty starts with our 25 year lifetime structural guarantee.

B1 Homes provides a 25 year lifetime structural guarantee on every home we build, plus individual product warranties on the fixtures, fittings, and appliances that go into your home. That’s peace of mind that no established property can match.

The 25 year lifetime structural guarantee covers the foundational elements of your home, footings, concrete slab, structural brickwork and/or structural timbers, giving you full protection for a quarter of a century after practical completion. On top of this, the branded products and appliances in your new B1 home come with their own manufacturer warranties, meaning you’re covered from the ground up.

B1 Homes also offers a 12 month maintenance period on your home from the date of practical completion. Clients are able to submit service requests on general maintenance items.

Compare this to buying an established property, where you inherit a home with an unknown maintenance history. Even a thorough building inspection can’t account for every potential issue waiting beneath the surface. There’s no warranty, no guarantee, and no builder to call when something goes wrong.

The Financial Incentives Stack Up for New Builds in WA

The financial case for building new in Perth has never been stronger. Right now, first home buyers in Western Australia who choose to build can access a stack of government incentives that are not available, or significantly reduced, when buying an established property.

First Home Owner Grant (FHOG)

Eligible first home buyers building a new home in WA can access the $10,000 First Home Owner Grant for properties valued up to $800,000. This grant is not available when purchasing an established home. Read more: About the first home owner grant

Stamp Duty Savings

When it comes to stamp duty, building new in WA holds a distinct advantage. First home buyers purchasing vacant land pay no stamp duty on land valued up to $450,000, with concessional rates applying up to $550,000, a saving of up to $25,390.

A $10,000 FHOG combined with stamp duty savings on land can represent $20,000–$35,000+ in upfront financial advantages for new home builders that simply aren’t available to buyers of established properties.

Note: Stamp duty thresholds are subject to parliamentary passage. Always confirm current rates with RevenueWA or a licensed conveyancer before making financial decisions.

Progress Payments vs. Lump Sum

Unlike buying an established property, where the full purchase price is due at settlement, building a new home allows you to pay in stages as construction progresses. This gives your savings more time to grow and keeps your finances more manageable throughout the build.

You Get Exactly What You Want, Without Compromise

Buying an established home means inheriting someone else’s design decisions. Their taste in kitchen tiles. Their choice of bathroom configuration. Their decision to put a wall where you’d want an open plan. And then paying to change all of it.

Building a new home with B1 Homes means starting with a blank canvas. You choose the floorplan that suits your lifestyle. You select the finishes, fixtures, and design features that reflect your taste. And you move into a home that was built for you, not adapted for you after the fact.

For first home buyers especially, this is a powerful advantage. Your first home should feel like your first home, not someone else’s secondhand home.

Side-by-Side: New Home & Land Package vs Established Property

Note: Financial thresholds and incentives are subject to change. Consult a licensed mortgage broker or financial adviser for advice specific to your circumstances.