Ground floor House Extension in South West

Get Single Storey House Extension Prices in South West

Home > Extensions & Conversions Projects > Single storey house extension > South West

Ground floor House Extension in South West

Are you seeking Single storey house extension in South West? Our network of builders can assist with your job. Every one of our Builder in South West are examined so you can see local customer reviews, when business was founded, rankings, approval and also day rate,  enabling you to make the right choice on who to hire. Allow us take the hassle out of locating as much as 4 experts for your Single storey house extension task.

Single storey extensions are a great way to add space and value to your property. A single storey extension can be very cost effective and they're suited to a multitude of homes. Smaller sized single storey home extensions can be built without needing to apply 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 generally be placed to either the side or back of your property. Single storey home extensions can be used to extend kitchens or even to add a downstairs study or utility room.

 

They are also often used to create a larger open plan area in the downstairs of the home that could be used as a kitchen diner or living area. Adding roof lighting and bifold doors to your home extension will generate a large airy space that creates a seamless transition into the garden. While single storey home extensions may appear less complicated than other varieties of extension, careful planning remains essential to ensure that the new space is functional and beautiful. Competent architects and contractors will be able to advise you on the best design for your home extension, considering the requirements of the new space as well as the best way to complement the present building. Your single storey home extension could be made to match your present property and use similar materials for its construction or be designed to contrast, offering an impressive effect by using different materials.

 

Factors that impact Single Storey Extension Costs

There are a few aspects to bear in mind when you are establishing your budget. The primary aspects that influence the cost of a single storey extension are the size and the finish. Yet there are various other aspects that it deserves keeping in mind while you are making your strategies.

Pricy Groundworks Needed

If it is difficult to dig the foundations and also lay the footing for your extension, then this can boost the price of your extensions. This may be the case if the ground is difficult to collaborate with. Debris in the ground can additionally raise the costs.

  • Quality of Fixtures and Fitting
    After the size of the extension, the next biggest factor is the grade of the coating. Choosing premium alternatives can lead to the final cost being more than dual what it would be when selecting the fundamental options.
  • Size of Extension
    When you are getting an extension on your residence, the single greatest element that will impact the cost of your extension is the size of it. The larger the extension is, the a lot more you will certainly wind up paying. If the area inside the extension is simple, without interior wall surfaces, after that this will certainly lower the cost per m2 somewhat. Nonetheless, even with this in mind. The bigger the area of your extension, the a lot more you pay.
  • Kind of Extension
    The type of extension you choose will go a long way towards determining just how huge your extension will be. Side return extensions develop the tiniest additional room so are typically the most inexpensive option, while a wraparound kitchen area extension will certainly create the most area and also have one of the most pricy fittings and also fixtures.
  • Building Regulations
    In most cases, constructing policies do not add a great deal of price to a structure project. Nonetheless, if you are building an extension onto an older home, there may be some unanticipated prices. This is specifically real if the house has actually not just recently been updated. Building regulations will apply to your whole residence, not just the extension. This can lead to the need for electrics to be taken a look at or door replaced.

 

Kitchen Extensions:

Kitchen extensions greatly come under the realms of ground floor extensions, although all type of house extensions could be made use of to include extra room for a kitchen.

As an approximate overview, a single storey extension will certainly cost from ₤ 1,000 - ₤ 2,000/ m2, with a fundamental build at the lower end of the scale and a superb construct quality at the higher end at a range, with expenses of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will offer up to four Single storey house extension pros in your area, who will certainly supply quotations for the job you want done. You'll obtain a home visit from experts in South West that'll help you to pick the best Single storey house extension for your home prior to carrying out the installation. Enter your postcode to begin searching now.

Average Single storey house extension cost in South West

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
£46,600

Avg. price

Avg. price
£29,000

Avg. price high

Avg. price high
£34,800

£47100

£35325

£23550

£11775

£0

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

Single storey house extension installation cost in South West 2026

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

Single storey house extension searches in June 2026

Single storey house extension Projects in South West in May 2026

119,816

Requests for quotations in South West in May 2026

0

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

0

Requests for Single storey house extension quotations in United Kingdom in May 2026. 0% change from April 2026.

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

Single storey house extension searches in counties near South West May 2026

South West

The South West of England is the largest of the nine areas in the country for land area and it has a population of 5.2 million. These put together provide the region a population density of 220 individuals per square kilometre. The South West accounts for several counties which includes Devon, Cornwall, Wiltshire, Somerset and Gloucestershire. The Isles of Scilly are additionally within the region. The South West's largest city by populace is Bristol, with Plymouth, Swindon and Gloucester the other major urbanised areas. For your property developments in the South West, make sure you use vetted and reputable businesses to get the best value for money.

Looking for Single storey house extension in South West?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for Single storey house extension in South West

15 May

House Extensions | Single Storey

Bath - BA1

Enquiry from: Daniel B

Start Date: 1 to 3 months

extension for kitchen (single storey)and a toilet time scale: 1-3 months please call to appoint

Post a similar request >

09 May

House Extensions | Single Storey

Bath - BA1

Enquiry from: DANIEL B

Start Date: 1 to 3 months

extension of a single storey kitchen and convert a boiler room as toilet in the ground floor time scale: 1-3 months please call to appoint

Post a similar request >

22 Apr

House Extensions | Single Storey

Cheltenham - GL52

Enquiry from: Jeff B

Start Date: Immediate

5m x 3m single storey SIP extension to the rear of a semi-detached bungalow.

Post a similar request >

24 Jan

House Extensions | Single Storey

Bristol - BS32

Enquiry from: Balamurugan G

Start Date: Immediate

I would like to do for rear extension to accommodate bathroom and utility.

Post a similar request >

08 Dec

House Extensions | Single Storey

Frome - BA11

Enquiry from: Oliver L

Start Date: Immediate

5m wide x 4m deep single storey flat roof extension. The back wall would be knocked through and replaced with an RSJ. We would also need an internal stud wall to partition off the utility room/ WC.

Post a similar request >

15 May

House Extensions | Single Storey

Salisbury - SP2

Enquiry from: Zlati D

Start Date: Immediate

customer in the salisbury area made an enquiry a couple of projects including single storey house extension.call anytime and arrange an appointment to discuss. below is some details about this project...

Post a similar request >

07 May

House Extensions | Single Storey

Swindon - SN26

Enquiry from: Preet K

Start Date: Immediate

what type of property is this for? house what type of extension do you need? single storey extension, loft conversion when was the property built? 1921 to 1979 how many stories is the current building...

Post a similar request >

25 Apr

House Extensions | Single Storey

Blakeney, Lydney - GL15

Enquiry from: Michelle W

Start Date: Immediate

I’m looking for free quotes to have an extension under 3 meters wide and about 9 meters long.single storey thanks

Post a similar request >

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 ...

Post a similar request >

17 Mar

House Extensions | Single Storey

Poole - BH17

Enquiry from: Zara R

Start Date: 1 to 3 months

what type of property is this for? house what type of extension do you need? single storey extension,garage conversion,multiple extensions how many stories is the current building? 2 storeys do you ha...

Post a similar request >

20 Oct

House Extensions | Single Storey

Bristol - BS6

Enquiry from: Safina I

Start Date: Immediate

To complete a single story rear extension and to complete the shower room. 1.remove wall and insert boxed steels for open plan kitchen. 2.complete floors, ceiling and walls of new built. 3.complet...

Post a similar request >

20 Sep

House Extensions | Single Storey

Weymouth - DT3

Enquiry from: Mike B

Start Date: 1 to 3 months

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 ...

Post a similar request >

16 May

House Extensions | Single Storey

Bristol - BS4

Enquiry from: Mike K

Start Date: Immediate

I'm looking to build a small extension to the back of the house, apx 2.5 x 5 mtr, just to have a little dining room with the point of entry via a door made by a widening kitchen window.

Post a similar request >

19 Apr

House Extensions | Single Storey

Swindon - SN2

Enquiry from: Stephen G

Start Date: Immediate

Single storey house extension Lead

We are in the process of buying this property and either want a single story rear extension (walls, a window and flat roof, nothing fancy) or a dormer added. Size about 15sqm to be used for an extra ...

Post a similar request >

01 Jan

House Extensions | Single Storey

Poole - BH17

Enquiry from: Sammy T

Start Date: Immediate

Single storey extension. Back of house. Roughly 6m width of house x 3m extended into garden

Post a similar request >

23 Oct

House Extensions | Single Storey

Plymouth - PL7

Enquiry from: Geraldine B

Start Date: 1 to 3 months

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....

Post a similar request >

09 Oct

House Extensions | Single Storey

Swindon - SN1

Enquiry from: Cornelius A

Start Date: 1 to 3 months

customer in swindon areas is looking to do a couple of projects at the moment, and would like quotes for single storey house extension.confirmed interest via email at 09/10/2023 13:28.please call to a...

Post a similar request >

05 Jul

House Extensions | Single Storey

Bristol - BS4

Enquiry from: Anna K

Start Date: 1 to 3 months

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....

Post a similar request >

06 Feb

House Extensions | Single Storey

Penryn - TR10

Enquiry from: Jim C

Start Date: Less than one month

single storey house; partial removal of kitchen ceiling to expose attic space and installation of velux windows. 1.removal of ceiling plaster and insulation material 2.removal of some rafters and str...

Post a similar request >

28 Jan

House Extensions | Single Storey

St. Agnes - TR5

Enquiry from: Michelle T

Start Date: Immediate

Hello, looking for quotes for a single storey, 2 room extension, around 30m2 to include a dining room a d a bedroom with ensuite. If anyone is interested in visiting/chatting and providing a quote thi...

Post a similar request >

Local & reliable builders near me

Tell us about your single storey house extension project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in South West

Get free, no-obligation local single storey house extension quotes from 4 verified builders working in South West.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

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 does a kitchen diner extension cost?

If you’re planning to construct a kitchen diner extension, to help you set a budget and start planning you must first have a cost estimate that’ll complete the entire project. If not, there’s a probability that you may have to spend more than would have been necessary or probably break the bank to have the project done. In truth, there’s no single and short answer to this question as the cost of a kitchen diner is largely dependent of several variables. In this article, we’re going to give a good insight into kitchen diner extension cost so as to help you make informed decisions moving forward. Let’s take a look!

On the average, a kitchen diner extension will cost within the range of £25,000 to about £45,000, however if you happen to reside in London, you can expect the cost to be a lot more than that - closer to £60,000. And due to the fact that there happens to be a plethora of options out there, any decision to make be it on the size, tradesman, flooring, finishes or type of the kitchen diner extension, will have a considerable impact on the overall cost of the project. For instance, a basic kitchen diner extension cost can be within the range of £12,000 to about £15,000., while a high end kitchen diner extension can reach a whooping price between £80,000 to about £100,000.

The total cost of your kitchen diner project will rely heavily of the size as well as the quality of the finishes. For example, a kitchen diner extension that’s small and basic is likely to cost about £1,300 to £1,500 per square metre. However, if you’re going for higher quality finishes, you can expect to pay within the range of £1,900 to about £3,000 per square metre.

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 single storey extension add value to your house?

Does A Single Storey Extension Add Value To Your House?

When you’re looking to construct a single storey extension or perhaps you’re just searching for means to increase the value of your property, this question always pops up. The short and simple answer to this question is a resounding yes, a single storey extension can go a long way to increase the value of your property. Just like any other home improvement, when done right, adding a little extra living space is one of the top things you can probably think of that’ll provide a cool increase in your property’s value. However, before you rush in you must also take note of some factors so you can be certain a single storey extension is the right option for you. These factors include the quality of the build, complexity of the build, cost of the build versus the value gain, ceiling price in the area, finance costs as well as the inconveniences and stress.

Generally, the average cost of a single storey extension can range from £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. So it’s important to know the value they’ll add to your house before deciding to make such an investment.

The value added to your property will depend largely on the quality and size of your single storey extension. The value is usually calculated by estate agents using the number of bedrooms, bathrooms as well as the floor area. Inside London, it’ll typically be priced at £5,000 to £10,000 per square metre, while outside London should be within the range of £900 to £2,000 per square metre.

Single storey house extension

Other Top Projects in South West

Customer Reviews

Overall rating:


South West Single storey house extension installers are rated 0 out of 5 based on 0 reviews of 0 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Single storey house extension projects that have been connected with Single storey house extension pros to help them. All Single storey house extension contractors All South West Single storey house extension contractors

Are you a builder in South West?

We can help you get more single storey house extension work with our qualified job leads and boost your business.

Join today