Ground floor House Extension in Northamptonshire

Obtain Single Storey House Extension Prices in Northamptonshire

Home > Extensions & Conversions Projects > Single storey house extension > Northamptonshire

Ground floor House Extension in Northamptonshire

Are you searching for Single storey house extension in Northamptonshire? Our network of builders can aid with your project. Every one of our Builder in Northamptonshire are checked so you can see local reviews, when business was set up, reviews, satisfaction and also day rate,  allowing you to make the best decision on who to hire. Allow us take the headache out of discovering up to 4 professionals 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 extremely affordable and they are suited to numerous properties. Smaller sized single storey home extensions can be built without having to apply for planning permission as they are covered under permitted development rights. Sizeable single storey extensions will still need planning permission. Single storey home extensions can also typically be located to either the side or rear of a house. Single storey home extensions are often used to extend kitchens or to add a downstairs study or utility room.

 

Additionally, they are often used to make a larger open plan area in the downstairs of the house that may be used as a kitchen diner or living area. Adding roof lighting and bifold doors to your home extension will create a sizeable airy space that provides a seamless transition in to the garden. While single storey home extensions may appear less complicated than other types of extension, careful planning is needed to ensure that the new space is useful and beautiful. Experienced architects and builders will be able to give you advice on the most suitable design for your home extension, taking into account the requirements 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 existing property and use similar materials for its construction or be made to contrast, providing a striking effect by using differing materials.

 

Elements that effect Single Storey Extension Costs

There are a couple of variables to remember when you are setting your budget plan. The main aspects that affect the price of a single storey extension are the size and the surface. However there are other aspects that it deserves bearing in mind while you are making your strategies.

Over-priced Groundworks Needed

If it is tough to dig the structures and lay the ground for your extension, after that this can raise the cost of your extensions. This might be the case if the ground is tough to work with. Particles in the ground can additionally increase the prices.

  • Grade of Fixtures and Fitting
    After the dimension of the extension, the next greatest factor is the caliber of the finish. Picking premium options can cause the final rate being greater than double what it would be when picking the fundamental choices.
  • Size of Extension
    When you are obtaining an extension on your house, the single most significant factor that will certainly affect the cost of your extension is the size of it. The bigger the extension is, the a lot more you will end up paying. If the location inside the extension is simple, without interior walls, after that this will decrease the price per m2 slightly. Nevertheless, even with this in mind. The larger the area of your extension, the more you pay.
  • Type of Extension
    The sort of extension you select will certainly go a long way towards determining exactly how big your extension will certainly be. Side return extensions develop the smallest added space so are usually the least expensive alternative, while a wraparound cooking area extension will certainly create the most room and have the most pricy fittings and also fixtures.
  • Building Regulations
    In most cases, developing laws don't include a great deal of cost to a building project. However, if you are constructing an extension onto an older house, there might be some unanticipated costs. This is specifically real if the house has not recently been upgraded. Building laws will put on your entire residence, not simply the extension. This can result in the need for electrics to be checked out or door replaced.

 

Kitchen Extensions:

Kitchen extensions mainly come under the realms of single storey extensions, although all kinds of home extensions could be used to incorporate additional area for a kitchen.

As an approximate guide, a single storey extension will set you back from ₤ 1,000 - ₤ 2,000/ m2, with a basic construct at the reduced end of the scale as well as an exceptional develop top quality at the greater end at an array, with prices of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will supply up to 4 Single storey house extension pros in your area, that will use quotes for the work you desire done. You'll get a home visit from professionals in Northamptonshire who'll assist you to pick the ideal Single storey house extension for your house prior to performing the setup. Enter your postcode to begin browsing currently.

Average Single storey house extension cost in Northamptonshire

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
£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 Northamptonshire, as reported by local LeadsDoWork members.

Single storey house extension installation cost in Northamptonshire 2025

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

Single storey house extension searches in May 2025

Single storey house extension Projects in Northamptonshire in April 2025

18,550

Requests for quotations in Northamptonshire in April 2025

0

Requests for Single storey house extension quotations in Northamptonshire in April 2025. 0% change from March 2025.

0

Requests for Single storey house extension quotations in East Midlands in April 2025. 0% change from March 2025.

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

Single storey house extension searches in cities and towns near Northamptonshire April 2025

Single storey house extension near you

Northamptonshire

The County of Northamptonshire features a population of 692,000, which makes it the 33rd ranked region in the UK. Northamptonshire borders 8 other counties, possessing the county town of Northampton as well as other important towns which include Kettering, Corby, Rushden and Daventry. The county carries a fairly small population density of only 750 people per square mile. For the household enhancements you're taking into consideration within the East Midlands county of Northamptonshire, ensure to work with trustworthy experts in your local area.

Looking for Single storey house extension in Northamptonshire?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for Single storey house extension in Northamptonshire

13 Jan

House Extensions | Single Storey

Northampton - NN2

Enquiry from: Eamon N

Start Date: Immediate

A single story extension with a skylight going 3 m out by 5 1/2 m wide

Post a similar request >

11 Aug

House Extensions | Single Storey

Kettering - NN14

Enquiry from: Peter K

Start Date: Immediate

Small single storey extension

Post a similar request >

06 Feb

House Extensions | Single Storey

Corby - NN18

Enquiry from: Joanne M

Start Date: 1 to 3 months

single storey extension to incorporate a toilet. time scale: 1-3 months please call to appoint

Post a similar request >

04 Feb

House Extensions | Single Storey

Kettering - NN15

Enquiry from: Georgia S

Start Date: Immediate

4mx2.36m single storey flat roof extensions on side of house. foundations, brickwork and roof.

Post a similar request >

20 Jan

House Extensions | Single Storey

Northampton - NN3

Enquiry from: Sophia A

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 >

04 Jan

House Extensions | Single Storey

Corby - NN18

Enquiry from: Joanne M

Start Date: 1 to 3 months

single storey extension to incorporate a toilet. time scale: 1-3 months please call to appoint

Post a similar request >

07 May

House Extensions | Single Storey

Kettering - NN15

Enquiry from: Krishan B

Start Date: Immediate

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 >

19 Mar

House Extensions | Single Storey

Kettering - NN15

Enquiry from: Danny P

Start Date: Immediate

create a new living space at reaf of house aprox 5x5m . are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no do you have plans dra...

Post a similar request >

15 Nov

House Extensions | Single Storey

Wellingborough - NN29

Enquiry from: Tim 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: semi detached looking fo...

Post a similar request >

07 Jul

House Extensions | Single Storey

Northampton - NN6

Enquiry from: Debbie R

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: detached looking for: si...

Post a similar request >

02 May

House Extensions | Single Storey

Northampton - NN3

Enquiry from: David 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...

Post a similar request >

24 Apr

House Extensions | Single Storey

Northampton - NN4

Enquiry from: Alexandru B

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...

Post a similar request >

22 Apr

House Extensions | Single Storey

Rushden - NN10

Enquiry from: Andreww A

Start Date: 1 to 3 months

6ft extension from house going 25-26ft across rear of property with bifolding doors. Kitchen wall and window to come out Are you the property owner: Owner of the property Looking For: Single storey e...

Post a similar request >

25 Mar

House Extensions | Single Storey

Corby - NN17

Enquiry from: Marian A

Start Date: Immediate

I want to cover a terrace 3.3m-5.35 m Are you the property owner: Owner What level of service do you require: Design, Supply & Install Do you know what style you require: Unsure, I would like to se...

Post a similar request >

29 Feb

House Extensions | Single Storey

Northampton - NN3

Enquiry from: Diptiben P

Start Date: Immediate

Side extention to make bedroom with isuits Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: Yes...

Post a similar request >

15 Jul

House Extensions | Single Storey

Northampton - NN1

Enquiry from: Anna H

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...

Post a similar request >

27 May

House Extensions | Single Storey

Northampton - NN3

Enquiry from: Vicky N

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...

Post a similar request >

03 Feb

House Extensions | Single Storey

Northampton - NN4

Enquiry from: Roman 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: Semi detached Looking Fo...

Post a similar request >

31 Dec

House Extensions | Single Storey

Northampton - NN3

Enquiry from: Mark T

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...

Post a similar request >

12 Nov

House Extensions | Single Storey

Corby - NN18

Enquiry from: Lucy H

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...

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 Northamptonshire

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

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 LeadsDoWork it's a big part of my …

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

FAQs

How long does a small extension take?

If you’re planning to build a small extension on your property, you’ll most likely want to know the length of time it’ll take to complete the home extension. Just like many other home improvement projects, it’s impossible to provide a specific number of day in which your project will be completed as the duration is based on a number of influencing factors. This includes the size of the development work as well as whether or not you plan to live in the house when the work is being done. In this article, we’re going to give you a breakdown of the processes that’s involved in building a small single storey extension alongside the duration for each so you can have an idea of how long your small extension project will take. Let’s take a look!

✓ A small single storey extension will normally take about 3 months to be completed.

✓ Site preparation is the first step in the process and it’ll take up to 2 weeks the dig out the footings and prepare foundations. Followed by a further 2 weeks to fit the damp course as well as any drains required around the extension.

✓ The 5th week is spent on working on the external walls and putting in place blockwork to deliver cavity wall insulation.

✓ The next 2 weeks will be spent on installing the roof structure as well as internal walls.

✓ Once done. The builders will make the structure weather proof and electricians or gas fitters will be on site to add power to the extension. This will be followed by internal walls’ plastering as well as breaking into your main house.

✓ After this, when the plaster is dry and decoration completed, units or furniture will then be installed.

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).

Placholder Image

Other Top Projects in Northamptonshire

Customer Reviews

Overall rating:


Northamptonshire Single storey house extension installers are rated 4.7 out of 5 based on 4 reviews of 31 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 Northamptonshire Single storey house extension contractors

Are you a builder in Northamptonshire?

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

Join today