How much do small kitchen extensions cost?

A kitchen extension can breathe new life into your home, and it doesn’t have to be big to make an impact.

Small kitchen extensions can be an affordable way to create space in your property. Now one of your first questions before starting your home improvement project is sure to be, “How much do small kitchen extensions cost?”

We aim to answer that question and many more in this post.

General small extensions cost

According to Homebuilding & Renovating, a typical extension will cost £1,500-£2,250/m². Labour and materials will make up the majority of your costs. Although you will need to consider other fees, such as:

  • Architect fees - Get a personalised quote to understand what these could be for your project.

  • Planning permission fees - These will generally be £258 for an extension — find out more here.

  • Building regulations compliance fees - You can explore these here.

  • Structural engineer fees - You might need the services of a structural engineer, for design and calculations of steel beams and other structural aspects. Your architect will arrange and managed this aspect of the project, and also advise on fees, which are normally around £800-£1000 on a typical extension project. 

You can read about extension costs in our blog post “What’s the cost of a rear extension in London? [link to blog]” to understand these costs in more detail.

Our post “How can I build an extension on a budget?” can also offer more insight and inspiration.

Additional kitchen extensions cost

A kitchen extension can involve additional costs that you wouldn’t expect if you were creating a reception room, for example. You’ll need to consider the cost of appliances and units to make it a functional space.

Of course, your overall costs will vary according to the quality of the materials and fittings you choose. For a general guide, take a look at the MyBuilder website. It breaks down individual costs for kitchen fittings, which can be summarised as follows:

  • Basic kitchen units: £3,000 to £5,800

  • Basic kitchen worktops: £20 to £40 m²

  • Washing machine: £200 to £500

  • Oven: £300 to £800

  • Hob: £100 to £400

  • Cooker hood: £200 to £500

  • Dishwasher: £300 to £600

  • Fridge freezer: £200 to £800

  • Basic flooring: £10 to £30 m²

  • Painting and/or tiling walls: £20 to £50 m²

  • Windows: £200 to £600 each

  • External door: £400 to £900

  • Internal door: £50 to £300

  • Light fittings: £80 to £200

  • Radiator fittings: £200 to £300

What are my next steps towards a small kitchen extension?

Now it's time to plan out your next steps:

Let’s move onto the next steps towards your small kitchen extension.

1. Draw up a budget - Work out what’s affordable for you and identify how you’re going to fund your project. Then add an extra 20% to cover unexpected costs.

2. Find an architect - They will design your extension and help with tasks like planning permission and party wall agreements.

3. Get quotes from builders - Ask for recommendations from the people around you.

4. Seek planning permission - This is a task you can delegate to your architect.

5. Manage your build - Put deadlines in place so your kitchen extension is completed on time. Again, your architect can help with this task.

Kitchen extension architect for London and Essex

Start planning your kitchen extension now. Get in touch with Humphreys & Sons, your local kitchen extension architect and chartered building surveyors.

We work with clients in London and Essex — we help them make the most out of their living space and transform their homes.

Why not book a free consultation today?

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