Things to Note Before You Build an Extension


If you are thinking about adding an extension to your home, you will want to find ways to cut down the amount you need to spend. Before you start on your extension, it helps to consider a few crucial factors like planning permission, construction materials, and your architect’s experience.

Shortages of construction materials is one of the most common hurdles facing contractors today. Amid the disruption of the ongoing pandemic, the resulting reduction in the supply of essential materials such as roofing sheets, tiles, and cement can greatly impact the timescales of your project. However, if you choose the right architect, they can quickly modify the plans for your property without any hassle.

Here are key factors to consider when building an extension

Pick the right extension size

One important thing to consider is the scale of your extension project. Work out the size of building you need. If you talk to professional local architects like Party Walls London or Humphreys & Sons, they can assist you with gaining planning permission if your project requires it. The rule of thumb is that if you add more square footage, the higher the value of the home. While bigger extensions will likely require planning permission, smaller extensions are cost-effective and may not require planning permission.

Extended timescales

According to seasoned quantity surveyor Tim Phillips, the labour market is volatile, so clients need to be prepared for the resulting delays. As you try hard to recruit the best contractor to build an extension, factor in this possibility for extended timescales. Even if you can get a good builder to finish your project in time, planning issues can hinder construction timescales.

Depending on the size and complexity of your project, you may have to wait up to 6 months for your building to be ready.

Set a realistic budget

It can be tempting to dream big and get carried away with extravagant design ideas. That said, the best way to ensure smooth project execution is to set a realistic budget for your extension. Home extension author, Ian Rock, suggests that you cut your coat according to your cloth. In the UK, the majority of extension projects cost about £1,500 to £2,000 per square meter of new space.

Don’t only take into account the build costs. Make your design decisions upfront to help you figure out how much you are likely to spend on flooring, tiling, roofing, and other sundry items.  Since your extension may end up costing more than your initial budget, make sure you have set up a contingency fund. For example, a contingency of 20% could allow you to cope with unforeseen costs.

Get a trusted project manager

Who is going to manage your extension build? In some cases, you may have to hire a project manager to oversee everything. Hire a qualified and licenced architect to draw up the plans for your project. Top architectural firms provide their clients with project managers to coordinate the building from start to finish. Once the construction starts, project management tasks can be passed onto the leading contractor. By working hand-in-hand with the contractor and project manager, you will ensure every aspect of the project goes according to plan.



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