Ground floor House Extension in Devon

Request Single Storey House Extension Prices in Devon

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Ground floor House Extension in Devon

Are you trying to find Single storey house extension in Devon? Our network of builders can assist with your project. Every one of our Builder in Devon are checked so you can see local write-ups, when the business was created, ratings, approval as well as cost,  allowing you to make the best choice on who to work with. Let us take the problem out of discovering up to 4 professionals for your Single storey house extension project.

Single storey extensions are a great way to add space and value to your home. A single storey extension can be extremely affordable and they are appropriate for numerous homes. Smaller sized single storey home extensions can be built without having to make an application for planning permission as they are protected by permitted development rights. Large single storey extensions will still need planning permission. Single storey home extensions can also frequently be placed to either the side or rear of your house. Single storey home extensions are often used to extend kitchen areas or even to add a downstairs study or utility room.

 

Also, they are often used to create a larger open plan area in the downstairs of the property that might be used as a kitchen diner or living area. Adding roof lights and bifold doors to your home extension will generate a big airy space that creates a seamless transition into the garden. While single storey home extensions may appear less complicated than other kinds of extension, careful planning is required to ensure that the new space is useful and beautiful. Competent architects and contractors will be able to advise you on the most appropriate design for your home extension, considering the specifications of the new space as well as the best way to complement the existing building. Your single storey home extension could be made to accentuate your current property and use similar materials for its construction or be designed to contrast, giving an impressive effect by using differing materials.

 

Factors that effect Single Storey Extension Costs

There are a couple of variables to remember when you are setting your budget. The primary factors that affect the cost of a single storey extension are the size and the surface. However there are other variables that it is worth remembering while you are making your plans.

Very Expensive Groundworks Needed

If it is tough to dig the structures as well as lay the footing for your extension, after that this can enhance the cost of your extensions. This might be the situation if the ground is difficult to work with. Particles in the ground can likewise elevate the costs.

  • Grade of Fixtures and also Fitting
    After the size of the extension, the next greatest variable is the grade of the surface. Selecting high-end options can cause the final price being greater than double what it would certainly be when selecting the fundamental alternatives.
  • Dimension of Extension
    When you are getting an extension on your residence, the single greatest aspect that will certainly influence the price of your extension is the size of it. The bigger the extension is, the much more you will certainly end up paying. If the area inside the extension is simple, with no interior walls, after that this will certainly lower the cost per m2 a little. Nevertheless, despite this in mind. The bigger the area of your extension, the a lot more you pay.
  • Sort of Extension
    The sort of extension you select will certainly go a long way in the direction of determining how large your extension will be. Side return extensions develop the smallest extra space so are commonly the most affordable alternative, while a wraparound kitchen extension will create the most room and have one of the most costly fittings and also components.
  • Building Regulations
    In many cases, constructing policies don't include a great deal of price to a structure job. Nonetheless, if you are constructing an extension onto an older house, there might be some unexpected prices. This is specifically true if the home has not lately been upgraded. Structure regulations will relate to your entire home, not just the extension. This can bring about the demand for electrics to be checked out or door changed.

 

Kitchen Extensions:

Kitchen extensions largely fall into the realms of single floor extensions, although all kinds of home extensions could be made use of to include added space for a kitchen.

As an approximate overview, a single floor extension will certainly cost from ₤ 1,000 - ₤ 2,000/ m2, with a basic construct at the reduced end of the range and an excellent build top quality at the higher end at an array, with prices of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will provide up to four Single storey house extension pros locally, that will certainly use quotations for the job you want done. You'll receive a property visit from experts in Devon that'll assist you to choose the ideal Single storey house extension for your residence before performing the installment. Enter your postal code to begin looking currently.

Average Single storey house extension cost in Devon

The typical cost of Single storey house extension is £29000. Costs alter based on the materials and the firm selected. The upper price range can be as high as £34800. The material costs are in general around £12000

Average price per Single storey house extension job in 2026

Avg. price low

Avg. price low
£23,200

Avg. price

Avg. price
£29,000

Avg. price high

Avg. price high
£34,800

£35300

£26475

£17650

£8825

£0

Prices based on actual Single storey house extension costs for Devon, as reported by local LeadsDoWork members.

Single storey house extension installation cost in Devon 2026

Labour cost £14,000
Material cost £12,000
Waste removal £3,000
Time frame: 8-12 weeks

Single storey house extension searches in September 2026

Single storey house extension Projects in Devon in August 2026

25,111

Requests for quotations in Devon in August 2026

0

Requests for Single storey house extension quotations in Devon in August 2026. 0% change from July 2026.

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Requests for Single storey house extension quotations in South West in August 2026. 0% change from July 2026.

Source: Numbers calculated based on the search volumes in major search engines

Single storey house extension searches in cities and towns near Devon August 2026

Devon

The county of Devon, or Devonshire, can be found in England's south west, neighboring the southern coastline of the country. With a total population over 1.1 million it's the 14th most inhabited area in the UK although has a small density of only 440 people per square mile. Devon comprises of ten primary districts including Exeter, Plymouth and Torbay. For any home improvements you want to undertake, guarantee to work with vetted and reliable industry experts close to you to ensure high quality.

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Similar Customer Enquiries for Single storey house extension in Devon

21 Apr

House Extensions | Single Storey

Paignton - TQ4

Enquiry from: Peter M

Start Date: Immediate

4 x 3 kitchen extension. Removal of existing kitchen window and lower wall. Probable resite of external grid. Concrete tile roof. uPVC soffits windows and door. Reposition of cold water feed from old ...

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23 Oct

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Plymouth - PL7

Enquiry from: Geraldine B

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customer made an online enquiry for single storey house extension and confirmed on sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote....

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07 Mar

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Totnes - TQ9

Enquiry from: Richard R

Start Date: 1 to 3 months

to build a garage and possibly a workshop time scale: 1-3 months please call to appoint

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07 Mar

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Crediton - EX17

Enquiry from: Paul A

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customer has a extensions & conversions project they are looking to have done, specially they want quotes for single storey house extension. they are unsure of options so would like to discuss with a ...

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12 Feb

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Honiton - EX14

Enquiry from: Heather M

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customer has a extensions & conversions project they are looking to have done, specially they want quotes for single storey house extension. they are unsure of options so would like to discuss with a ...

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10 Feb

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Plymouth - PL5

Enquiry from: Lisa G

Start Date: 1 to 3 months

customer in plymouth areas is looking to do a couple of projects at the moment, and would like quotes for single storey house extension.confirmed interest via telephone, sms and email at 10/02/2022 18...

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17 Jun

House Extensions | Single Storey

Plymouth - PL2

Enquiry from: Justin S

Start Date: 1 to 3 months

a 4.5m wide 3.5m deep single storey flat roofed box with roof light and 3-3.5m bi fold doors, 4 plug sockets, room to be used as a lounge so may want underfloor heating, electric is fine time scale:...

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11 Jun

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Paignton - TQ4

Enquiry from: David Y

Start Date: Less than one month

customer in paignton areas is looking to do a couple of projects at the moment, and would like quotes for single storey house extension.confirmed interest via telephone, sms and email at 16/05/2021 18...

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16 May

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Paignton - TQ4

Enquiry from: David Y

Start Date: Less than one month

customer made an online enquiry for single storey house extension and confirmed on telephone, sms and email they would like a call with a builder to discuss prices.please call to arrange an appointmen...

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10 Mar

House Extensions | Single Storey

Exeter - EX1

Enquiry from: Suzii S

Start Date: Less than one month

customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: owner of the property property type: other looking for: singl...

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14 Feb

House Extensions | Single Storey

Torquay - TQ1

Enquiry from: Mike W

Start Date: Immediate

customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: owner of the property property type: detached looking for: si...

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31 Jul

House Extensions | Single Storey

Kingsbridge - TQ7

Enquiry from: Daisy O

Start Date: Immediate

single storey extension with sips walls and roof and a fully glazed gable end wall. time scale: immediate please call to appoint

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17 Jul

House Extensions | Single Storey

Tavistock - PL19

Enquiry from: Richard F

Start Date: Less than one month

17 pew tor close single storey extension. cavity wall. roof light with bi fold doors and x2 windows each side. time scale: less than one month please call to appoint

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16 Apr

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Plymouth - PL6

Enquiry from: Dale L

Start Date: Less than one month

Single storey flat roof extension 12m long x 3.6m wide, no internal walls to be included just foundations, blockwork, roof, floors and plastering. Time scale: Less than one month Please call to appoi...

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28 Feb

House Extensions | Single Storey

Totnes - TQ9

Enquiry from: Ian B

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Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Sin...

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18 Feb

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Torquay - TQ2

Enquiry from: Tim P

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Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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11 Sep

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Exeter - EX4

Enquiry from: Ann G

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Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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23 Aug

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Umberleigh - EX37

Enquiry from: Wayne U

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Detached Looking For: Si...

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27 Jul

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Sidmouth - EX10

Enquiry from: Kerry G

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24 Jun

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Brixham - TQ5

Enquiry from: Owain R

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FAQs

how much does a single storey house extension cost?

If you’re planning to build a single story house extension, this is one of the first questions that usually comes to mind to help you set a budget and start to make plans. But as simple as it seems, a single accurate answer can not be provided due to the fact that there are several variables that can play a key role in influencing the price of a single story house extension. These variables includes the size, location, design or specification as well as the build route. In this guide, we’ll provide you with a rough estimate that you can work with to put you on the right path.

The main determinant of the cost of a single storey extension is the size of the build, while the next most relevant factor is the quality of the finish you opt for. For a small extension, you can expect to spend a sum within the range of £14,000 to £17,000. Meanwhile for a larger single storey extension, if you opt for a large wrap around the extension with a great amount of glass to be incorporated in both the walls and roof, you can expect to pay a sum within the range of £80,000 to £120,000.

Overall, the average cost of a single story house extension is usually within the range of £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK.

There are some additional costs you may also need to factor in to your extension budget. These includes surveys, architect fees, planning application fee (if needed), insurance and Party Wall Agreement (if needed).

how much is a ground floor extension?

Generally, extensions can be a very tricky undertaking - where it can be quite difficult to have a clear comprehension of the rules, regulations as well as costs. Therefore before you rush in to kick start your ground floor extension project, it’ll be wise to get a good grip on the cost. In this article, we’re going to give you a rough estimate of the cost of a ground floor extension. Let’s take a look!

Just like several other home improvement projects, the cost of constructing a ground floor extension is based on a number of things which includes the size, materials used, your location, the quality of the tradesmen or company hired and lots more. For instance, if you happen to reside in London, the cost of your ground floor extension is going to be a lot higher than the other regions.

The single cost of a ground floor extension should fall within the range of £1,500 per square metre to about £2,000 per square metre. However, if you happen to live in London or the South East, this price can reach up to £1,900 per square metre to about £2,400 per square metre. These prices are for good quality ground floor extensions only. Basic or low quality extensions would naturally cost less while superior quality extension will cost more.

Now looking at the size of the ground floor extension, if you’re looking for a size of about 5m x 5m, you can expect to pay a price within the range of £32,000 to about £36,000. And as usual, in London or the South East, this price can reach up to £50,000 or even more. And that’s just for constructing the extension. If the other relevant costs like the 10 percent to 15 percent professional fees for the architect, planning application (if needed), building regulations and more, the price goes up.

does a kitchen extension add value to your house?

If you’re planning to add a kitchen extension to your property or perhaps you’re simply looking for ways to increase the value of your property, this is one of the common questions that usually pops up. A simple answer to this question is yes, a kitchen extension will add value to your house. With a kitchen being one of the most frequently used room in a house, adding an extra space to the commonly used room can only increase the value of the entire property. However, to determine the value added by such an extension, there’s a need to calculate the cost of setting one up first.

Kitchen extension costs are greatly influenced by a wide range of variables such as the size, type of the extension and specifications, your location, professional fees, materials used and more. Overall, the type of the extension you opt for will play the most significant role in the determination of your kitchen extension cost. Here, we’ll be looking at a single storey kitchen extension.

For a single storey kitchen extension, you can expect your home’s market value to increase within the range of 5 percent to about 10 percent. When trying to calculate the cost of kitchen extension, it’s crucial to take into account how much value it’ll add to your home so as to make sure that the amount expended will not outweigh the expected value to be added by the project.

For a more accurate idea, there’s the need to consult local estate agents. However, for a much needed guideline, single storey kitchen extensions are usually able to add about 5 to 10 percent to a home’s value, while double storey extension should be up to 20 percent. But as stated earlier, this will depend on several variables.

do i need planning permission for a kitchen extension?

If you’re planning to construct a kitchen extension on your property, one of the first things that comes to mind is whether or not you’ll require a planning permission before you proceed. Generally, kitchen extensions are normally classified as permitted development which allows you to carry out your project without any interruptions from the law or your local authority. In other words, if your extension is meets up with the guidelines of the permitted development rights, you won’t have to apply for a planning permission. However if otherwise, you’ll have to apply for a planning permission to your local council and may require additional reports. And regardless of your position, you’ll always need building regulations approval before you can carry out any kitchen extension project. It may also be required that you’ll have to issue a part wall notice if you’re to build on or close to the boundary with a neighbour.

If you don’t want to go through the hassle and stress involved in applying for a planning permission with your local council, then you must ensure the following:

✓ Your kitchen extension must not be over half of the area of land around your main house.

✓ The kitchen extension must not be side elevation onto a highway or forward of the principal elevation.

✓ The extension must not be taller than the highest part of the roof.

✓ The height of your kitchen extension must not go beyond four metres.

✓ Kitchen extension that’s more than one storey must not go exceed the rear wall of the main house by more than three metres.

✓ Two storey kitchen extensions must not be closer to rear boundary by anything less than seven metres.

✓ The kitchen extension must not include balconies, verandas or any raised platforms.

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