If you start with plans, you have already made the most important decision of your project without realising you were making it. The question of what you are actually building here, and whether this is the right path for this site and this budget, gets answered by default the moment a designer starts drawing. That is where the $100,000 mistakes begin.
Most people start the same way. A few weekends on Pinterest and Houzz, a folder full of saved images, then an initial consultation with a designer. A brief takes shape. Plans get drawn. And before a builder has even been called, the path has been chosen.
The plans are usually fine. The designer has done exactly what they were asked to do. The problem is that the wrong question got answered very thoroughly.
The flat-pack problem
I use an analogy with clients when this comes up.
Imagine someone hands you a set of flat-pack instructions and asks you to build what is on the box. The instructions are for a cabinet. The box has a bed on it. You can follow every step perfectly, use every piece correctly, and still end up with something that does not match what you needed.
That is what it looks like to commit to a path before anyone has assessed whether it is the right one. The thinking has to come before the planning.
What I see when the plans arrive first
A family comes to me with drawings already done. They have paid for documentation, been through a couple of rounds of revisions, and they are emotionally invested in what they are holding.
I look at the plans, then I look at the site, and something does not line up. The layout is fighting the orientation of the block. The scope of the renovation is approaching rebuild territory in cost without delivering a rebuild’s outcome. The existing structure is not strong enough to carry what is being proposed, and nobody has checked.
None of that is anyone’s fault. It is what happens when the sequence runs backwards.
The Carlton house
A client came to me in Carlton some years ago. They wanted to move this wall out, bring that wall in, add a second storey, update the kitchen and bathrooms. All reasonable things on the surface.
When I walked the property, my read was that the cost was going to land somewhere between $600,000 and $800,000. For a result that would still have old plumbing, old electrical, old foundations and compromised proportions throughout.
So I asked them one question. Had they considered knocking it down and rebuilding?
They had not. It had not occurred to them as an option, because they had already started thinking in terms of renovation. We talked through what a rebuild would actually look like on their site, what it would cost, and what they would get. For roughly $200,000 more than the top end of the renovation, they could design the home from scratch, get the layout exactly right, and end up with something that would perform for the next thirty years.
They did the rebuild. They have never once said they regretted it.
That conversation could only happen because we had it before the plans were locked in.
The floor I told a client not to fix
A different client had a hole in their floor. It sat too close to the ground for a timber repair to last. Doing it properly meant a concrete slab, between $20,000 and $30,000.
A few questions in, I found out they were planning to knock the house down and rebuild within eighteen months.
I told them not to fix the floor. Not because it did not need fixing, but because spending $30,000 on a repair in a home you are demolishing in a year and a half is not a building decision. It is an expensive way to feel like you have done something. Work around it, save the money, put it toward the rebuild.
They were surprised a builder would tell them not to spend money with him. That is exactly the point.
Get the sequence right
Building involves hundreds, sometimes thousands, of individual decisions that all have to come together correctly. If the foundational one, which path are we actually taking here, is wrong, everything built on top of it inherits that problem.
Have the strategy conversation first. It costs nothing and it is the only part of this process you cannot go back and redo cheaply.
If you would like a second set of eyes on your plans, or you are still working out what the right path is for your site, book a free Vision and Feasibility Session or call me directly on 0468 057 127. About an hour, no obligation, just an honest conversation about whether your project makes sense and what it will take to get it right.
This is part of our complete guide to choosing between renovation, extension, and knockdown rebuild for Sydney homes. Read the full guide
