5 Mistakes To Avoid When Buying Your First Home

By Jigsaw on May 28, 2026 4:00:00 PM

Buying your first home is a huge milestone. It’s exciting, but it can also feel overwhelming, especially when you’re trying to understand how everything works and avoid costly mistakes.

Most first-time buyers don’t go wrong because they’re careless. They go wrong because no one has clearly explained the process from start to finish. If you’re currently thinking about a mortgage for a first-time home buyer, knowing what to avoid can make the journey much smoother.

This article walks you through the most common mistakes and, more importantly, how to avoid them.

1. Not Getting an Agreement in Principle Early

One of the biggest mistakes when buying a home for the first time is starting property viewings without knowing what you can actually afford.

Without an Agreement in Principle (AIP), you’re guessing your budget. This can lead to disappointment, wasted time, or even missing out on a property because you’re not seen as a serious buyer.

How To Avoid It

Speak to a mortgage adviser early and secure an AIP before you start viewing properties. This gives you:

• A clear budget
• Confidence in your decisions
• A stronger position with estate agents

It turns house hunting from guesswork into a focused, realistic search.

2. Underestimating the True Cost of Buying

Many buyers focus entirely on saving for a deposit, but the deposit is only part of the picture.

There are several additional costs involved, including:

• Solicitor and conveyancing fees
• Property surveys and valuations
• Mortgage arrangement or adviser fees
• Moving costs and insurance
• Stamp Duty (depending on your situation)

These costs can quickly add up, and if you’re not prepared, they can put pressure on your finances at the worst possible time.

How To Avoid It

Build a full budget before you start. Understanding the total cost of first-time buying a home helps you plan properly and avoid last-minute stress.

3. Not Getting a Property Survey

It’s easy to assume a property is in good condition, especially if it looks well-presented, but what you see on the surface doesn’t always reflect what’s happening underneath.

Skipping a survey to save money can lead to much bigger costs later if issues like damp, structural problems, or outdated systems are uncovered after purchase.

How To Avoid It

Always consider a professional survey. It gives you:

• A clear understanding of the property’s condition
• The chance to renegotiate if issues are found
• Peace of mind before committing

It’s one of the most important buying first home tips that protects you long-term.

4. Relying on Guesswork Instead of Proper Research

First-time buyers often rely on advice from friends or family, or assumptions based on what they’ve heard. While well-intentioned, this can lead to poor decisions.

Every buyer’s situation is different. What worked for someone else may not be right for you.

How To Avoid It

Take the time to research properly and ask questions:

• What are similar properties actually selling for?
• How long has the property been on the market?
• Are there any issues with the area or property?

Working with an experienced adviser also helps you sense-check decisions and avoid common pitfalls.

5. Not Thinking About the Long Term

When you find a property you like, it’s easy to focus on how it feels right now, but buying a home is a long-term commitment.

Questions many first-time buyers don’t ask early enough include:

• Will this property still work in 3–5 years?
• Is there enough space if your situation changes?
• Can you comfortably afford payments if rates increase?

Not thinking ahead can lead to needing to move sooner than expected, which brings additional costs and stress.

How to avoid it: Think beyond the immediate purchase. Consider your future plans and whether the property supports them. A good mortgage adviser will also help you structure your mortgage in a way that keeps your options open.

Why Getting the Right Support Matters

Many of these mistakes come down to one thing: trying to navigate the process alone.

First-time buyers are often:

• Unsure what to do next
• Overwhelmed by information
• Concerned about making the wrong decision

Having the right support changes everything. It gives you clarity, confidence, and a clear path forward.

Final Thoughts

Making mistakes when buying your first home is common, but the costly ones are avoidable.

By understanding these common pitfalls and following practical buying first home tips, you can approach the process with confidence and make informed decisions at every stage.

If you’re thinking about a mortgage for a first-time home buyer, the best first step is understanding your budget and your options.

You aren't expected to be an expert in mortgage rates or lending criteria; that’s what we’re here for. At Jigsaw Independent Mortgage Specialists, we’ve guided thousands of first-time buyers.

If you’d like to take the next step and see what you could afford, use our tool to calculate your mortgage and get a clearer picture of the rates you could be eligible for and what your monthly payments might look like.

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