Ground floor House Extension in Barnet

Compare Single Storey House Extension Prices in Barnet

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Ground floor House Extension in Barnet

Are you searching for Single storey house extension in Barnet? Our network of builders can aid with your project. All of our Builder in Barnet are inspected so you can see local consumer reviews, when business was set up, reviews, satisfaction as well as day rate,  permitting you to make the right choice on who to employ. Allow us take the hassle out of locating up to 4 pros 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 very cost effective and they're suited to numerous homes. Smaller sized 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 usually be positioned to either the side or back of your house. Single storey home extensions are often used to expand kitchens or to put in a downstairs study or utility room.

 

They are also often used to make a larger open plan area in the downstairs of the home that might be used as a kitchen diner or living area. Adding roof lights and bifold doors to your home extension will generate a sizeable airy space that creates a seamless transition into the garden. While single storey home extensions may appear simpler than other types of extension, careful planning is essential to make sure that the new space is practical and attractive. Professional architects and building contractors can advise you on the most suitable design for your home extension, considering the needs of the new space as well as the best way to complement the pre-existing building. Your single storey home extension could be designed to complement your current property and employ similar materials for its construction or be designed to contrast, presenting an impressive effect by using different materials.

 

Factors that effect Single Storey Extension Prices

There are a few aspects to remember when you are setting your budget. The major factors that affect the price of a single storey extension are the size and the surface. However there are various other elements that it is worth keeping in mind while you are making your strategies.

Expensive Groundworks Needed

If it is tough to dig the foundations and also lay the footing for your extension, then this can increase the cost of your extensions. This may be the case if the ground is hard to deal with. Debris in the ground can likewise raise the costs.

  • Caliber of Fixtures as well as Fitting
    After the dimension of the extension, the next largest variable is the grade of the finish. Choosing premium choices can result in the final price being greater than dual what it would be when picking the fundamental alternatives.
  • Dimension of Extension
    When you are obtaining an extension on your house, the single greatest variable that will certainly affect the cost of your extension is the size of it. The larger the extension is, the extra you will wind up paying. If the location inside the extension is easy, without inner wall surfaces, after that this will reduce the price per m2 slightly. Nevertheless, despite having this in mind. The larger the location of your extension, the more you pay.
  • Kind of Extension
    The kind of extension you pick will go a long way towards determining how huge your extension will be. Side return extensions produce the smallest extra room so are usually the most inexpensive choice, while a wraparound kitchen extension will certainly produce one of the most space and have the most expensive fittings as well as fixtures.
  • Building Regulations
    For the most part, developing regulations do not include a lot of price to a building task. Nonetheless, if you are building an extension onto an older home, there may be some unforeseen costs. This is especially real if the home has not recently been updated. Structure policies will relate to your whole residence, not just the extension. This can lead to the need for electrics to be considered or door replaced.

 

Kitchen Extensions:

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

As an approximate overview, a single storey extension will certainly set you back from ₤ 1,000 - ₤ 2,000/ m2, with a basic construct at the lower end of the range and an outstanding construct 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 offer approximately four Single storey house extension pros locally, who will supply quotations for the job you want done. You'll obtain a home visit from professionals in Barnet who'll help you to pick the right Single storey house extension for your residence before accomplishing the setup. Enter your postal code to begin searching now.

Average Single storey house extension cost in Barnet

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 2025

Avg. price low

Avg. price low
£21,600

Avg. price

Avg. price
£29,500

Avg. price high

Avg. price high
£37,400

£37900

£28425

£18950

£9475

£0

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

Single storey house extension installation cost in Barnet 2025

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

Single storey house extension searches in April 2025

Single storey house extension Projects in Barnet in March 2025

15,008

Requests for quotations in Barnet in March 2025

0

Requests for Single storey house extension quotations in Barnet in March 2025. 0% change from February 2025.

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Requests for Single storey house extension quotations in Hertfordshire in March 2025. 0% change from February 2025.

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

Single storey house extension searches in cities and towns near Barnet March 2025

Barnet

Barnet is a big London borough having a population featuring 356,400. The fact is, it's the second largest borough in England's capital city with an area of 86.74 square kilometres. Established in 1965, the region is part of both Middlesex and Hertfordshire. You need to get your ideal house improvement business in Barnet by contrasting totally free quotations.

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Single storey house extension pros in Barnet

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 Barnet

24 Apr

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Ashok H

Start Date: Less than one month

ground floor single storey side extension in sip panels. pitched roof. pad and beam foundation and concrete raft foundation. plumbing and fit supplied shower room and cabinets. time scale: less than ...

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02 Aug

House Extensions | Single Storey

Barnet - EN4

Enquiry from: Jing G

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: semi detached looking fo...

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16 Jul

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Folu K

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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16 Oct

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Laura T

Start Date: Less than one month

*Homeowner House extension Please call to appoint

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16 Feb

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Angel K

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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17 Jan

House Extensions | Single Storey

Barnet - EN5

Enquiry from: Robin G

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Would you require assistance to gain this: Yes ...

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01 Mar

House Extensions | Single Storey

Uxbridge - UB10

Enquiry from: Praful K

Start Date: 1 to 3 months

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

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07 Mar

House Extensions | Single Storey

Hayes - UB4

Enquiry from: Neville L

Start Date: Immediate

customer made an enquiry for single storey house extension and confirmed on the quotatis site they would like quotes from a builder.customer lives in the hayes area and would like a call to discuss op...

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18 Feb

House Extensions | Single Storey

Hemel Hempstead - HP2

Enquiry from: Julian F

Start Date: 1 to 3 months

customer in the hemel hempstead 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 p...

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04 Aug

House Extensions | Single Storey

Uxbridge - UB10

Enquiry from: Reena C

Start Date: Immediate

customer in uxbridge areas is looking to do a couple of projects at the moment, and would like quotes for single storey house extension.confirmed interest via sms and email at 04/08/2021 12:52.please ...

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03 Jul

House Extensions | Single Storey

Hemel Hempstead - HP3

Enquiry from: Jeremy P

Start Date: Immediate

customer in the hemel hempstead 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 p...

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19 May

House Extensions | Single Storey

Ruislip - HA4

Enquiry from: Amandeep S

Start Date: 1 to 3 months

looking for a builder to do a single-story rear extension and merge dining & kitchen to create an open-plan kitchen-diner. time scale: 1-3 months please call to appoint

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28 Mar

House Extensions | Single Storey

Hemel Hempstead - HP2

Enquiry from: Jeremy L

Start Date: Less than one month

single storey extension to create open plan living time scale: less than one month please call to appoint

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13 Mar

House Extensions | Single Storey

Hemel Hempstead - HP2

Enquiry from: Jeremy L

Start Date: Less than one month

single storey extension to create open plan living time scale: less than one month please call to appoint

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06 Feb

House Extensions | Single Storey

Watford - WD17

Enquiry from: Devi S

Start Date: Immediate

Looking forward a ground floor single storey extension to kitchen. Size of extension is 7 m x 5m. Also some internal refurbishment.

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22 Jan

House Extensions | Single Storey

Hemel Hempstead - HP2

Enquiry from: Iuliana S

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: terrace looking for: sin...

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17 Sep

House Extensions | Single Storey

Watford - WD24

Enquiry from: Mark C

Start Date: 1 to 3 months

single storey rear extension 5.5x3.6m flat roof construction time scale: less than one month time scale: 1-3 months please call to appoint

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18 Feb

House Extensions | Single Storey

Hemel Hempstead - HP2

Enquiry from: Kevin L

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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08 Jan

House Extensions | Single Storey

Uxbridge - UB9

Enquiry from: Artur K

Start Date: 1 to 3 months

6m x 9 m garage with office space above it. two dormer windows, pitched roof. garage high 2.1m, loft high 2.4m. metal stairs outside Time scale: 1-3 months Please call to appoint Please call to appo...

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18 Jul

House Extensions | Single Storey

Ruislip - HA4

Enquiry from: Anusha S

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: Semi detached Looking Fo...

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FAQs

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.

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.

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).

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Barnet Single storey house extension installers are rated 4.2 out of 5 based on 6 reviews of 109 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 Barnet Single storey house extension contractors
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