7 Renovation Mistakes That Cost Sutherland Shire Homeowners Thousands
- Shire Build
- Mar 30
- 7 min read
After 20 years of renovating homes across the Sutherland Shire, I've seen the same mistakes come up again and again. Some of them cost a few thousand dollars to fix. Some cost a lot more. Most of them are completely avoidable - if you know what to look for before you start.
This isn't a list designed to scare you off renovating. It's the opposite. Renovating your home is one of the best decisions you can make - for your lifestyle and your property value. But getting it wrong is expensive, stressful, and sometimes irreversible. So here are the seven mistakes I see most often, and exactly how to avoid them.
Mistake 01 - Getting Quotes Before You Have a Proper Scope
This is the most common one. A homeowner rings three builders, gives a vague brief - "I want to open up the kitchen and add a bathroom" - and gets three wildly different prices back. Then they're comparing apples with mangoes and have no idea which quote is actually good value.
The problem isn't the quotes. It's that without a defined scope, every builder is guessing at a different version of your project. One is quoting load-bearing wall removal. One isn't. One is including the bathroom rough-in. One has allowed for a basic bathroom. The numbers mean nothing.
✓ How to avoid it
Before we price anything, we invest proper time in understanding exactly what your project involves. We sit with you on site, ask the right questions, and work through what's actually in scope - what's structural, what's cosmetic, what the approval pathway looks like, what the realistic budget range is. Only then do we put a number on it. If a builder gives you a quote after a 20-minute walkthrough, that quote is a guess.
Mistake 02 - Underestimating What Council Approval Actually Involves
A lot of homeowners assume their renovation is straightforward from a planning perspective - and then get a nasty surprise when the certifier flags an issue or council requests more information. In the Sutherland Shire specifically, there are heritage conservation areas, bushfire-affected zones, and Georges River Council vs Sutherland Shire Council boundary differences that can completely change the approval pathway for a property.
I've seen projects delayed by three to four months because the approval process wasn't properly assessed upfront. That's three to four months of paying rent somewhere else, or living in a half-finished home.
How we handle it at Shire Build:
This is one of the first things we sort out - before design, before pricing, before anything. At your initial consultation, we assess exactly what approval pathway applies to your property.
Is it exempt development? A CDC through a private certifier? A full DA to council? For properties in heritage conservation areas, near bushland, on sloped blocks, or straddling the Sutherland Shire and Georges River Council boundary, this question matters enormously to your timeline and budget. We manage the entire process on your behalf - you don't deal with council directly at any point. Most of our clients are genuinely surprised by how straightforward we make it.
Mistake 3: Choosing Finishes Before the Layout Is Locked In
I completely understand the excitement of going straight to tile showrooms and cabinetry displays - that's the fun part. But choosing finishes before the layout is finalised is one of the most expensive mistakes you can make.
I've seen homeowners spend months selecting tiles and tapware for a bathroom layout that then had to change when the structural engineer assessed the wall. Or fall in love with a kitchen island configuration that doesn't fit the actual dimensions of the space. When the layout changes and it often does once engineering or approvals are factored in - the selections either have to change too, or you're contorting the design to fit choices you've already committed to.
How we handle it at Shire Build:
We run a deliberate sequence: scope first, layout second, structural sign-off third, finishes selection fourth. We don't open the finishes conversation until the design is approved - not because we're being difficult, but because it saves a lot of heartache.
When we do get to selections, you're not on your own. We have an in-house designer who works with you to narrow down your choices based on the specific style and look you're going for - whether that's coastal, contemporary, Hamptons, warm and earthy, or something else entirely. Rather than walking into a showroom with no direction and coming out more confused than when you went in, you'll have a clear brief, a shortlist of options that actually work together, and someone who can tell you honestly when something is going to look great and when it isn't.
It's one of the parts of the process our clients consistently tell us they appreciated most. Making big financial decisions about finishes is genuinely hard without someone in your corner who knows what they're looking at.
Mistake 4: Using an Unlicensed Contractor to Save Money
This one genuinely costs people the most money in the long run. I've re-done other people's work more times than I can count. Waterproofing done incorrectly. Structural elements that don't meet code. Electrical that's dangerous. And in every case, fixing it properly costs significantly more than doing it right the first time would have.
There's also the insurance and warranty issue. Owner-builder projects in NSW have specific statutory warranty limitations. If you sell the property within 7 years of substantial renovations, disclosure is required and defects become a very expensive problem - for the next owner, and potentially for you.
How we handle it at Shire Build:
Craig Parker holds a current NSW Builder's Licence, and Shire Build is a full member of the Housing Industry Association. All our work complies with the Building Code of Australia and we carry full public liability and contract works insurance. We're happy to provide our licence and insurance details to any client. We're also happy to let you speak to our past clients directly, because that's ultimately the most useful reference of all.
Mistake 5: Not Building in a Contingency Budget
Every renovation in an existing home carries some degree of unknown. You open a wall and find asbestos. You lift the floor and discover the subfloor needs replacing. You strip the bathroom and find years of water damage behind the tiles. These aren't rare especially in older Shire homes particularly, they're common.
Homeowners who have budgeted to the absolute limit of what they can spend are the most stressed clients I work with, because every discovery becomes a crisis. The project either stops, scope gets cut in ways they regret, or debt gets taken on unexpectedly.
How we handle it at Shire Build:
We're upfront about the likely hidden risks for your specific home type and age before we start. A 1970s brick veneer in Gymea has different typical discoveries than a 1990s double-brick in Menai. We tell you what we commonly find in homes like yours so you can plan accordingly. We also recommend building a contingency of 10–15% on top of your fixed-price contract. It's not pessimism, it's the difference between a renovation that stays enjoyable and one that becomes a crisis every time something unexpected turns up.
Mistake 6: Renovating in the Wrong Order
The order in which you tackle a renovation matters more than most people realise. The classic mistake is doing cosmetic work - new floors, new paint, new cabinetry before structural or services work is complete. Then the structural work damages the new floors. The plumber chases through the new tiles. The electrician cuts through the fresh plasterwork.
I've also seen homeowners renovate a kitchen beautifully and then realise twelve months later they should have done the first floor addition at the same time because now they have to rip out part of the kitchen for the structural work. Sequencing matters enormously.
How we handle it at Shire Build:
At the discovery consultation, we ask about your home's future as well as its present. If there's any chance you're doing a first floor addition, an extension, or outdoor living work in the next five years, we factor that into what we design and build today. We sequence every project deliberately structure first, services second, finishes last and we think about the whole home, not just the current scope. It takes a bit more conversation upfront, but it prevents the expensive rework that comes from thinking too narrowly about a project.
Mistake 7: Choosing a Builder on Price Alone
I'll be honest this is the mistake that concerns me most for homeowners. The renovation industry in Sydney has a significant number of builders who win work by submitting the lowest number, then find ways to recover margin through variations, delays, and substituting specified materials for cheaper alternatives. By the time the problem is obvious, the client is deeply committed financially and emotionally.
The cheapest quote is rarely the cheapest outcome. In twenty years of building in the Sutherland Shire, I've never once had a client say "I wish I'd gone with the cheaper builder." I have had clients come to us to fix the cheaper builder's work repeatedly.
How we handle it at Shire Build:
We give you a fixed-price proposal before any work starts. Not an estimate. Not an open-ended range. A fixed price and what we quote is what you pay, unless you change the scope. We also make it easy to check our credentials: our licence is publicly verifiable on the NSW Fair Trading register, our insurance certificates are available on request, and we'll connect you with past clients who can tell you what it was actually like to work with us. We think transparency is the best sales tool we have.
The Common Thread
Looking at these seven mistakes, there's a pattern: most of them come down to rushing. Rushing to get quotes before the scope is defined. Rushing to choose finishes before the layout is set. Rushing to start before the approval is properly assessed. Rushing to save money by cutting corners on who does the work.
A renovation done properly takes time upfront in planning, in conversations, in asking the right questions. That time at the start is what prevents the expensive surprises in the middle.
The Sutherland Shire has thousands of homes that were built in the 1960s, 70s, and 80s and are ready to be something much better. The families living in them deserve to have that process done right. That's genuinely what gets me out of bed in the morning not completing projects, but handing over homes that have genuinely changed the way a family lives.
Ready to talk about your renovation?
We'd love to hear what you're planning and what stage you're at, what the brief looks like, and what your timeline is. No hard sell, just an honest conversation about what's possible. Contact us
