Ground floor House Extension in Northamptonshire

Obtain Single Storey House Extension Prices in Northamptonshire

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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 2026

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 2026

Labour cost £14,000
Material cost £12,000
Waste removal £3,000
Time frame: 8-12 weeks
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Single storey house extension searches in October 2026

Single storey house extension Projects in Northamptonshire in September 2026

18,550

Requests for quotations in Northamptonshire in September 2026

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Requests for Single storey house extension quotations in Northamptonshire in September 2026. 0% change from August 2026.

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

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Single storey house extension searches in cities and towns near Northamptonshire September 2026

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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.

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Single storey house extension pros in Northamptonshire

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 Northamptonshire

12 May

House Extensions | Single Storey

Daventry - NN11

Enquiry from: Justin B

Start Date: Immediate

We want a 12m2 single storey extension to replace an all glass conservatory & would like an idea of the cost

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11 Jul

House Extensions | Single Storey

Daventry - NN11

Enquiry from: Elaine W

Start Date: Immediate

Looking at a side extention of approx 7 ft for the full lenght of bungalow . Moving bathroom out and extending kitchen and bedroom

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05 Jul

House Extensions | Single Storey

Kettering - NN14

Enquiry from: Graham Q

Start Date: Immediate

Blockwork for single extension, foundation already poured. Additional work to be discussed. Approx 3m x 6m x 7m

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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

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11 Aug

House Extensions | Single Storey

Kettering - NN14

Enquiry from: Peter K

Start Date: Immediate

Small single storey extension

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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

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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.

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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....

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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

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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....

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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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...

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FAQs

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.

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.

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.

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.

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Northamptonshire Single storey house extension installers are rated 4.4 out of 5 based on 5 reviews of 17 pros.
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