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20 big renovation mistakes first-time homeowners make

11 min read
Oct '25 • by Heather

Quick summary

First-time homeowners should avoid making renovation mistakes like not budgeting enough, which can delay or cost more than planned, or skipping a survey that might hide costly issues like foundations or plumbing. Setting aside at least 10% of your budget for contingencies and consulting professionals like architects and surveyors can save you thousands and prevent costly errors.

Buying your first home is always exciting but for those looking for a fixer-upper, it can feel like you’ve got a whole new adventure to look forward to. Perhaps you’re a romantic who wants to return a period property to its former glory, or maybe you just want to ensure your first home is perfectly tailored to you. No matter your reasons, if you’re a first-time renovator, you want to make sure your dream project doesn’t turn into a nightmare.

As with anything you do for the first time, you’re going to be prone to making a few mistakes. While the mantra ‘live and learn’ may apply to some new ventures, when it comes to your home, you’re probably going to want to exercise some more caution. To help you avoid renovation disaster, we’ve put together this guide to some of the most common mistakes you’re going to want to steer clear of.

Read this and you’ll be one step closer to achieving your renovation goals!

Purchasing without a survey

If you’re buying a property that needs some extra love and care, don’t be afraid to take a closer look into the details. You might be prepared to put a lot of work into getting the surface level up to scratch, such as decorating or switching up the layout, but there can be hidden costs lurking in the background.

Often, when you’re viewing a property, it can be hard for you to spot common renovation hurdles. These are…

  • Foundations
  • Plumbing
  • Electrics
  • Roof

Should any of these need extensive repairs, you might see a lot of your budget gobbled up, straight out of the gate. That’s why it pays to get a surveyor on board. By carrying out a pre-sale survey, they’ll be able to spot any of these issues before you sign on the dotted line.

How much does an architect charge?