Ground floor House Extension in South East

Compare Single Storey House Extension Prices in South East

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Ground floor House Extension in South East

Are you trying to find Single storey house extension in South East? Our network of builders can aid with your project. All of our Builder in South East are inspected so you can see local customer reviews, when business was opened, rankings, satisfaction and price,  permitting you to make the ideal choice on who to work with. Allow us take the trouble out of locating approximately 4 professionals for your Single storey house extension project.

Single storey extensions are a great way to add space and value to your house. A single storey extension is often very cost effective and they're appropriate for many houses. Smaller single storey home extensions can be built without the need to make an application for planning permission because they are protected by permitted development rights. Large single storey extensions will still need planning permission. Single storey home extensions can also typically be situated to either the side or rear of your home. Single storey home extensions are often used to extend kitchens or even to add a downstairs study or utility room.

 

Also, they are often used to make a larger open plan area in the downstairs of the property that could be used as a kitchen diner or living area. Adding roof lighting and bifold doors to your home extension will create a big airy space that provides a seamless transition into the garden. While single storey home extensions may appear simpler than other kinds of extension, careful planning continues to be essential to ensure that the new space is useful and beautiful. Competent architects and building contractors can advise you on the most effective 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 existing property and use similar materials for its construction or be made to contrast, offering a striking effect by using differing materials.

 

Factors that impact Single Storey Extension Costs

There are a couple of factors to bear in mind when you are setting your spending plan. The major factors that influence the cost of a single storey extension are the size and also the surface. Yet there are various other elements that it deserves remembering while you are making your plans.

Pricy Groundworks Needed

If it is tough to dig the foundations and also lay the ground for your extension, after that this can raise the cost of your extensions. This could be the situation if the ground is hard to collaborate with. Debris in the ground can likewise raise the costs.

  • Caliber of Fixtures as well as Fitting
    After the dimension of the extension, the following largest element is the quality of the surface. Picking high-end options can lead to the last cost being greater than dual what it would certainly be when picking the basic alternatives.
  • Dimension of Extension
    When you are getting an extension on your home, the single largest element that will certainly influence the cost of your extension is the size of it. The larger the extension is, the a lot more you will certainly end up paying. If the location inside the extension is straightforward, with no interior walls, after that this will reduce the cost per m2 slightly. However, even with this in mind. The bigger the location of your extension, the much more you pay.
  • Kind of Extension
    The type of extension you pick will go a long way in the direction of determining how big your extension will certainly be. Side return extensions produce the tiniest extra space so are frequently the cheapest choice, while a wraparound kitchen area extension will certainly create one of the most area as well as have one of the most costly fittings and components.
  • Building Regulations
    In many cases, building regulations don't add a lot of price to a structure project. However, if you are constructing an extension onto an older residence, there might be some unanticipated prices. This is particularly real if the house has not lately been upgraded. Building laws will put on your entire home, not simply the extension. This can bring about the demand for electrics to be checked out or door changed.

 

Kitchen Extensions:

Kitchen extensions greatly fall under the realms of ground floor extensions, although all type of property extensions could be used to incorporate additional room for a kitchen.

As an approximate overview, a single storey extension will certainly set you back from ₤ 1,000 - ₤ 2,000/ m2, with a fundamental develop at the reduced end of the range as well as an excellent build quality at the higher end at a range, with costs of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will give up to four Single storey house extension pros locally, that will offer quotes for the job you want done. You'll receive a home visit from specialists in South East who'll assist you to choose the best Single storey house extension for your home before executing the installation. Enter your postcode to begin browsing now.

Average Single storey house extension cost in South East

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
£24,400

Avg. price

Avg. price
£34,667

Avg. price high

Avg. price high
£44,934

£45500

£34125

£22750

£11375

£0

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

Single storey house extension installation cost in South East 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 South East in August 2026

239,528

Requests for quotations in South East in August 2026

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

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Requests for Single storey house extension quotations in United Kingdom 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 counties near South East August 2026

South East

The South East of England is one of the country's nine regions and is also the largest when it comes to population size. The region has around 8.6 million occupants, and although it contains a significant land area, its population density is around 452 people per square kilometre. South East England contains a variety of counties such as Kent, Surrey, East and West Sussex, Hampshire, Buckinghamshire and Berkshire. The populace has expanded greatly over the last ten years, specifically because of the significant conurbations of regions such as Brighton, Portsmouth, Reading and Southampton. The South East is infamous for higher home prices so keep this value on your property with upgrades from expert tradespeople.

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Single storey house extension pros in South East

Jassi Builders Ltd

2 review(s)
Based: in Hayes, UB4 9YD

Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I have completed all my work on perfect time and leave customers in complete satisfaction. We do all types of loft conversions, exten...

Latest review

Angela A., HP1
22nd June 2020
3

House Extensions | Single Storey in Hemel Hempstead

Assured me he Would give me a good price which made me feel less confident with this builder he was supposed to phone on...

Similar Customer Enquiries for Single storey house extension in South East

10 Nov

House Extensions | Single Storey

Richmond - TW10

Enquiry from: VICTORIA S

Start Date: Immediate

ONE BED ROOM EXTENSION BACKOF THE HOUSE IN THE GARDEN ATTACHED TO THE HOUSE

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26 Oct

House Extensions | Single Storey

Erith - DA8

Enquiry from: Imteaz B

Start Date: 1 to 3 months

customer in the erith 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:cus...

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06 Oct

House Extensions | Single Storey

Croydon - CR0

Enquiry from: Anjana G

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customer in area has requested that we arrange quotes for their single storey house extension project.they are considering various options and would like to discuss with a builder directly.please cal...

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17 Aug

House Extensions | Single Storey

Folkestone - CT20

Enquiry from: Sed S

Start Date: Immediate

Single-story extension at the rear of the property. Approx 6m wide x 3m deep with a slanted roof

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19 Jul

House Extensions | Single Storey

Waterlooville - PO7

Enquiry from: Jissmol B

Start Date: Immediate

are you the property owner: owner of the property property type: detached looking for: single storey extension

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23 May

House Extensions | Single Storey

Petersfield - GU31

Enquiry from: Anuroopa K

Start Date: Immediate

Hi, There's a property that we're interested in buying and we want to see if it would be feasible to have a one storeyed rear extension so we can have an extra room with a bathroom- and if yes, what w...

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06 May

House Extensions | Single Storey

Littlehampton - BN17

Enquiry from: Simon F

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 build...

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30 Apr

House Extensions | Single Storey

Oxford - OX2

Enquiry from: Mark C

Start Date: 1 to 3 months

customer in oxford area has requested that we arrange quotes for their single storey house extension project.mrs are considering various options and would like to discuss with a builder directly.pleas...

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09 Apr

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West Malling - ME19

Enquiry from: Claire M

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Single storey rear extension 6m x 4m approx

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19 Jan

House Extensions | Single Storey

Welling - DA16

Enquiry from: Marlon M

Start Date: 1 to 3 months

customer in the welling 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:c...

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22 Nov

House Extensions | Single Storey

Surbiton - KT5

Enquiry from: Petar S

Start Date: Immediate

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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21 Oct

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Steve M

Start Date: Less than one month

customer made an enquiry for single storey house extension and confirmed on the local quotes site they would like quotes from a builder.mr lives in the tunbridge wells area and would like a call to di...

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21 Sep

House Extensions | Single Storey

Thornton Heath - CR7

Enquiry from: Rehana R

Start Date: Immediate

mrs requested quotes for single storey house extension from a builder around thornton heath. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the...

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07 Sep

House Extensions | Single Storey

Liphook - GU30

Enquiry from: Kevin M

Start Date: Immediate

We are planning a first floor extension over an existing single storey (currently flat roof) conventionally built brick and block extension. The overall size of the first floor extension will be app...

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02 Jun

House Extensions | Single Storey

West Wickham - BR4

Enquiry from: Kat M

Start Date: Immediate

single storey rear extension (kitchen diner). removal of internal wall between current kitchen and dining room to create open plan space and addition of a downstairs cloak room. plans submitted for fu...

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03 May

House Extensions | Single Storey

Alton - GU34

Enquiry from: Justin v

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30 Apr

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Reading, Thatcham - RG19

Enquiry from: Ian H

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07 Apr

House Extensions | Single Storey

Dartford - DA2

Enquiry from: Vijay K

Start Date: Immediate

I need a 5x3 meters extension in back garden and this will have a kitchen fitted in. There is also an additional wall I need added in another portion of the house.

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22 Mar

House Extensions | Single Storey

Cranleigh - GU6

Enquiry from: Roger B

Start Date: Immediate

To replace conservatory approx 15sq metres with extension comprising two rooms, a small utility room and an orangery with a large lantern within the roof for natural daylight.

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11 Mar

House Extensions | Single Storey

Gravesend - DA12

Enquiry from: Rashpal B

Start Date: Immediate

Single story extension at the rear of the house .with some rear modifications. And garden retaining walls with ground work with slabs

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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.

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.

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