The Hidden Edge Investors Overlook: Why Construction Knowledge Matters in Property Deals
When most people think about property investment, they think numbers, yield, ROI, comparables. But after more than 25 years in the building and development world, I’ve learned the real advantage doesn’t just come from spreadsheets or slick negotiation. It comes from understanding construction, and what it really takes to bring a project from paper to profit.
At Andrews Properties & Investments, we’re not just another property company. We’re a husband-and-wife team — myself, Aileen, and my husband Jonathan — who’ve spent decades building homes and businesses from the ground up across Leeds, Harrogate, and Yorkshire. Through our construction arm, Andrews Construction Group, we’ve completed over 120 residential projects in the last three years alone, ranging from complex extensions and full refurbishments, to new-build homes.
We know how to spot value. But more importantly, we know how to deliver it.
Why Knowing How to Build Gives You an Edge
In property, it’s easy to get caught up in chasing the perfect deal. And yes, the numbers need to work. But experience has taught me that the deal is only as good as your ability to deliver it.
The most successful investors aren’t always the ones who find the best deals on paper. They’re the ones who understand the end-to-end journey, from acquisition to build, and the process. Because real profit lies not just in buying well, but in building well.
The Numbers Are Just the Beginning
Whenever I assess a project, I work backwards. I start with the anticipated resale value, then deduct the build and refurbishment costs, professional fees, legal charges, lender costs, and finally, the margin I need to make it worthwhile. That gives me a clear figure of what I can afford to offer.
If your build numbers are off, your deal doesn’t stack. Mistakes in construction are rarely small, so there’s no room for error. And when time is money, mistakes during the build phase can wipe out profits completely if you overrun on costs or the work takes longer than expected.
A 1930s Semi in Leeds: The Project That Tested Us
We bought a lovely but tired 1930s semi in one of Leeds’ prime postcodes. On paper, it was a dream, strong figures, strong street, strong resale.
But as soon as the walls came down, we realised we’d underestimated just how poorly the house had been extended over the years. Plaster straight onto brick, with no insulation. Undersized timbers in critical areas and multiple dodgy extensions layered on top of one another.
Even with our decades of experience, the project tested us. What saved the project wasn’t ego, it was planning, flexibility, and knowing how to adapt and cost things in real time.
Key Lessons We Took Away
This project reminded me of two essential truths:
The market doesn’t care how experienced you are — the building will still test you.
Your most powerful tool isn’t a hammer — it’s humility.
Because we knew how to build, we were able to adjust fast. We didn’t panic when the numbers shifted. We recalculated, restructured, and delivered.
The result? Still a profitable exit in a premium area, and another reminder that construction knowledge paired with property education is where the real strength lies.
Why We’re Different
Jonathan (Jono) started as a bricklayer more than 20 years ago and has worked every trade since. He’s known on site as someone who delivers top-quality work, respects trades, and solves problems without drama.
I come from a background in numbers, systems, and project management, with a master’s degree in the field. I run the business, oversee finance and delivery, and ensure every project hits the ground running, finishes on time and on budget.
Together, we’ve delivered over 120 projects in just the last few years. We don’t just talk about property, we build it, from foundations to finish. That’s why investors trust us.
Construction Knowledge Is a Superpower
If you understand how buildings go together, you:
Walk sites differently and see potential others miss.
Make faster, safer decisions, without waiting weeks for trades to quote.
Spot problems before they become disasters.
Protect your margins and your reputation.
Too many investors get stung because they trusted the wrong builder, that’s why due diligence is critical.
How to Spot a Good Builder
Here’s my go-to due diligence checklist:
Ask better questions: “How would you approach this?” “What’s your lead time?” “What won’t you do, and why?” “What exactly is and isn’t included in the quote?”
Visit their sites: Ten minutes on a live or finished site tells you more than any brochure.
Understand their quotes: Good builders give itemised quotes, vague lump sums are a red flag.
Check paperwork: Insurance, VAT, contracts, accreditations — all should be in order.
Speak to previous clients: Don’t ask if they’d recommend them. Ask what went wrong, and how it was handled.
Look for problem-solvers: The best builders challenge you, suggest better solutions, and flag issues early.
Final Thought
Experience doesn’t mean perfection, it means knowing how to adapt when things go sideways. And trust me, in property, they often do.
At Andrews Properties & Investments, we combine deep construction knowledge with property strategy to protect margins and create value.
If you'd like to chat about how we can help you, drop me a line at info@andrewsgroupltd.co.uk or visit.
