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Home » Annex » Kitchen extension costs

Kitchen extension costs

Minimal costs

€ 8.000

Average costs

€ 15.000

This project costs on average between

€ 12.300 - € 17.700

Maximum costs

€ 30.000

Have you always dreamed of a big kitchen with a kitchen island where you can cook for friends? With an extension, this is all possible. The cost of building an extension to your house so you can install a kitchen in it is partly in your own hands. Do you prefer a larger space or a luxury finish? Want to know more about the exact prices for your situation? Read it here on Renoca.

Costs for kitchen extension

A kitchen extension involves a lot of work: the cost of specialists, materials and, of course, choosing the kitchen. Fortunately, it is possible to keep the costs under control, such as picking a cheap kitchen, having the extension delivered as shell and by comparing quotations. See here a price indication of the various finishes and prices for a kitchen extension.

Dimensions of kitchen extension Average prices including finish, VAT and labour
2.5 X 2.5 metres Between £10,000 and £15,000
3 X 2.5 metres Between £15,000 and £19,000
3 X 4 metres Between £20,000 and £25.000

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Kitchen extension costs

Price examples

In the previously mentioned price table you can see an overview of average prices. Below are examples that explain the prices in more detail.

Most chosen work

The most chosen work is usually easily the most economical. This is because people often opt for a shell kitchen extension. If you assume 2.5 (l) x 2.5 (h) metres, 3 walls with door and window frames, flat roof and standard bricks, you arrive at an average price of £8,000 for the extension.

Greater project

A larger project includes everything. This includes costs for finishing, electricity, gas, water, sewage, floor, walls, ceiling and kitchen. So you hand everything over so you can be sure that the project will be completed 100 per cent of the time. Do you opt for a hull extension with the above-mentioned finishes? Then you come to an average price of £20,000.

What does the price breakdown of an extension for your kitchen look like?

Cost breakdown Kitchen extension cost

What choices affect the price of your kitchen extension?

When building an extension for your kitchen, the price is determined by 4 choices.

Choice 1: Size of extension

A kitchen extension can still vary in width and depth. If you have a kitchen extension installed at the back of your house and still want to enjoy your garden to the full?

  • Width: Per half a metre, an average price of £1,000 is added.
  • Depth: For half a metre more or less depth, an average price of £1,250 is charged.
Choice 2: Prefabricated or customised kitchen extension?

A second choice is the difference between a prefabricated and a customised extension. Prefabricated extensions are made in the factory and brought to site. This makes prefabricated more economical. With a prefabricated extension, there are fixed dimensions to choose from. These dimensions are common dimensions so chances are your dimensions are among them. With made-to-measure, you have the possibility to apply your wishes to the kitchen extension. So take a good look at how much money you have to spend and then decide. A prefabricated extension is on average £2,000 cheaper than a custom-made one.

Choice 3: The type of kitchen

The type of kitchen is also an important choice for an extension. Will you leave the kitchen in place or opt for a total change. You can make it as expensive as you want. See below what the average costs are for the activities in and around the kitchen.

Activity Average cost
Buying the kitchen Between £3.000 and £17,000
Disassembly and removal of existing kitchen Between £250 and £1,500
Placement of new kitchen Between £500 and £1.500
Moving water and electricity lines Between £ 500 and £ 900
Extending meter box Between £ 300 and £ 700
Painting Between £15 and £30 per m2
Painting Between £10 and £20 per m2
Choice 4: Additional option

There are also several options for a kitchen extension. See here which options they are and the additional prices.

Option Average additional price
Field breakthrough £3.000
Plastering £ 1,000
Electricity £ 450
Central heating (incl. radiator) £ 1,000
Framing £ 300

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