Ground floor House Extension in Orpington

Compare Single Storey House Extension Prices in Orpington

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Ground floor House Extension in Orpington

Are you searching for Single storey house extension in Orpington? Our network of builders can aid with your task. Every one of our Builder in Orpington are inspected so you can see local honest reviews, when the business was opened, ratings, satisfaction and cost,  allowing you to make the right choice on who to employ. Let us take the inconvenience out of discovering up to 4 experts for your Single storey house extension job.

Single storey extensions are a great way to add space and value to your home. A single storey extension can be quite cost effective and they're suitable for many houses. Smaller single storey home extensions can be built without the need to apply for planning permission as they are covered under permitted development rights. Substantial single storey extensions will still need planning permission. Single storey home extensions can also frequently be situated to either the side or rear of your home. Single storey home extensions are often used to expand kitchen areas or even to put in a downstairs study or utility room.

 

They are also often used to create a larger open plan area in the downstairs of the house that might be used as a kitchen diner or living area. Adding roof lamps 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 sorts of extension, careful planning is still essential to ensure that the new space is useful and attractive. Qualified architects and contractors will be able to give you advice on the most appropriate design for your home extension, taking into account the specifications of the new space as well as the best way to complement the present building. Your single storey home extension could be designed to match your existing property and employ similar materials for its construction or be designed to contrast, supplying an impressive effect by using different materials.

 

Variables that impact Single Storey Extension Prices

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

Over-priced Groundworks Needed

If it is challenging to dig the foundations and lay the footing for your extension, after that this can increase the cost of your extensions. This could be the instance if the ground is tough to collaborate with. Debris in the ground can also increase the prices.

  • Grade of Fixtures and Fitting
    After the size of the extension, the next largest variable is the caliber of the finish. Picking premium alternatives can lead to the final rate being more than double what it would be when picking the basic options.
  • Dimension of Extension
    When you are obtaining an extension on your residence, the single biggest variable that will affect the cost of your extension is the size of it. The larger the extension is, the more you will end up paying. If the location inside the extension is simple, without inner wall surfaces, then this will certainly lower the price per m2 somewhat. Nonetheless, despite having this in mind. The bigger the location of your extension, the more you pay.
  • Type of Extension
    The kind of extension you pick will certainly go a long way in the direction of dictating how big your extension will be. Side return extensions create the smallest added room so are usually the most affordable choice, while a wraparound kitchen extension will create the most space as well as have one of the most expensive fittings and components.
  • Building Regulations
    Most of the times, constructing policies don't include a lot of cost to a structure task. However, if you are constructing an extension onto an older home, there may be some unanticipated costs. This is particularly true if the residence has actually not lately been updated. Structure guidelines will apply to your whole home, not just the extension. This can result in the demand for electrics to be looked at or door replaced.

 

Kitchen Extensions:

Kitchen extensions mainly fall under the realms of ground storey extensions, although all type of property extensions could be made use of to incorporate added room for a kitchen.

As an approximate overview, a single storey extension will set you back from ₤ 1,000 - ₤ 2,000/ m2, with a standard build at the reduced end of the range and also an exceptional build high quality at the greater end at a variety, with prices of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will give approximately four Single storey house extension pros locally, who will certainly provide quotations for the job you want done. You'll obtain a property visit from professionals in Orpington who'll help you to choose the right Single storey house extension for your home before carrying out the installment. Enter your postal code to begin browsing currently.

Average Single storey house extension cost in Orpington

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 Orpington, as reported by local LeadsDoWork members.

Single storey house extension installation cost in Orpington 2026

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

Single storey house extension searches in July 2026

Single storey house extension Projects in Orpington in June 2026

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Requests for quotations in Orpington in June 2026

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Requests for Single storey house extension quotations in Orpington in June 2026. 0% change from May 2026.

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Requests for Single storey house extension quotations in Kent in June 2026. 0% change from May 2026.

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

Single storey house extension searches in cities and towns near Orpington June 2026

Orpington

Orpington is a rural town and electoral ward in the London Borough of Bromley in Greater London, positioned at the south eastern side of London's urban sprawl. The London Plan identifies the town as one of the 35 central centres in Greater London. Before the establishment of Greater London in 1965, Orpington was administratively in the county of Kent, which continues to be the postal county for the town. In accordance with the 2011 Census, the population of Orpington is around 15311. Within this population, 52 percent were female and 48 percent were male, with the average age being 42, which is just above the national average age of 40. A big amount of shops can be discovered on the High Street and in the Walnuts Shopping Centre. A general market is also found in the town, which is open for three days a week. Various eateries, coffee shops and public houses are also spread around the location. Orpington contains a number of local landmarks. The Parish Church, 'All Saints', was endowed by the Archbishop of Canterbury in 1173. It has experienced some adjustments over the years, most noticeably the loss of the tower and steeple after its damage in a storm in 1809, in addition to undergoing extension work in 1957. The town is additionally home to a medieval hall house, The Priory, which is considered to have been constructed in the 11th century. Obtained by the Orpington Urban District Council in 1947, it was used as a museum for over 50 years. Its garden produces an alluring public park with a natural pond, the source of the River Cray. For all your house upgrades, make sure to make use of trustworthy contractors in Orpington to make certain of quality.

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Single storey house extension pros in Orpington

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
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 Orpington

19 Jul

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Stefano T

Start Date: Immediate

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

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12 Mar

House Extensions | Single Storey

Orpington - BR6

Enquiry from: ANDY H

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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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09 Mar

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Michelle S

Start Date: Immediate

single storey rear extension to extend the kitchen, looking for something basic not to contemporary. Size of extension within permitted development.

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12 Dec

House Extensions | Single Storey

Orpington - BR6

Enquiry from: James W

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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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11 Jun

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Shekar H

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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: Other Looking For: Singl...

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10 Jun

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Vikram M

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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: Detached Looking For: Si...

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30 Dec

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Ben L

Start Date: 1 to 3 months

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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05 Sep

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Thilina G

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: Terrace Looking For: Sin...

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31 Aug

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Alison E

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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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25 Jan

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Khaled E

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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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18 Nov

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Gary C

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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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18 Sep

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Mr G

Start Date: Immediate

May wish to extend rear of house to extend dining and kitchen rooms. Approx size would be 12 x 3m with a matching pitched roof. Maybe sloping from the first storey out by three metres. If this is too...

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02 Aug

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Marco S

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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: Detached Looking For: Si...

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01 Jun

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Balamurugan 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: Detached Looking For: Si...

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07 May

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Sandhya H

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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: Detached Looking For: Si...

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24 Apr

House Extensions | Single Storey

Orpington - BR6

Enquiry from: Abisola A

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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: Detached Looking For: Si...

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14 Apr

House Extensions | Single Storey

Orpington - BR5

Enquiry from: Emmanuel A

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: Terrace Looking For: Sin...

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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 to find a builder for a house extension?

Builders are everywhere, but finding one for your project can be tricky and stressful, with both cost and reliability coming into question. This is even more worrisome when you’re fully aware that your house extension can only be as good as the builder. If you’re also facing the same challenge, then you’ve come to the right place. In this article, we’ll share with you some tips on how to choose a professional and reliable builder who’ll ensure you get immense value for every penny spent. Let’s take a look!

✓ Ask for recommendations. To find a tradesperson, not just a builder, personal recommendations is the best way to go. Building a house extension is a major undertaking which comes with a lot of costs, so if you’re going to do it the least you can do is ensure you do it right. Carry out your research, ask friends and family, neighbours and loved ones if the know of any reliable builder in the local area. If they’ve have one they’ve used, you can request for the cost, quality of the job done, the duration of the project and any other detail you feel you should know.

✓ Search Online. Use our search feature to look at the builders available or submit and enquiry and we will find you one. Our site holds details of numerous builders and building companies which you can go through their ratings to select the best.

✓ Select a reliable builder from trading association. Most reliable builders are usually a member of a recognized trading association or the other. Though this is not obligatory for builders, but it can be used as a dependable medium to find a good builder. We list what trade association the builders are a member of.

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.

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Orpington Single storey house extension installers are rated 4.3 out of 5 based on 9 reviews of 53 pros.
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