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House Extension in city

House extension comes with a variety of advantages which makes it simple to see why the extension could be a terrific uptick in the possible rate of your property in regards to sales. So if you're looking to build a new house extension yet still not encouraged about the task, we're below to help you. Being fully aware any home construction job is normally a hefty financial investment, there's a big demand to be set on your decision prior to arranging the beginning of any kind of job. So are house extensions worth it? Below are several of the leading advantages offered by house extensions to aid you make a decision if it's one of the most appropriate path for you.

 

What's Associated with Adding an Extension?

The steps will differ depending on the extent of your extension, but you can expect some, if not all, of the below to be involved when including an expansion to your home:

 

  1. Obtaining Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if appropriate) to ensure you can do what you wish to do.
  3. Enlisting an architect  to draw the plans, considering your expected usage ( cooking area, washroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance service provider to allow them know of the intended work ahead of it beginning.
  6. Obtaining car parking allows if needed for your professionals to guarantee they have easy access to your residential property.
  7. Making sure all intended job falls within allowed allowables.
  8. Cleaning the area and digging deep into if essential, consisting of the elimination of trees.
  9. Structure job can start.

 

What is the cost of a house extension in city?

If you're taking into consideration including a 2 floor house extension, after that establishing a budget for this project would be a fantastic means to start. Comparable to a back extension, a two floor extension typically leaves the remainder of the building requiring some work as well as, due to its size, this may indicate the re-development of the whole house - which is why they can be really costly. Several of the various other affecting factors that can have huge impact on a 2 storey house extension expense includes: your location, the dimension of the build, complexity of the layout (anything beyond the conventional develop will typically require even more knowledge as well as time), the glazing to be included (the more the glass made use of in the project, the a lot more the material cost), along with the team used.

Average House extensions cost in Stevenage

The regular cost of House extensions are £44,167 in Stevenage. Costs vary based upon the materials and the company picked. The upper price range can be as high as £62,667. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£29,000

Avg. price

Avg. price
£44,167

Avg. price high

Avg. price high
£62,667

£63200

£47400

£31600

£15800

£0

Prices based on actual House extensions costs for Stevenage, as reported by local LeadsDoWork members.

House extensions installation cost in Stevenage 2025

Labour cost £27,000
Material cost £10,500
Waste removal £2,500
Time frame: 10-14 weeks

House extensions searches in February 2025

House extensions Projects in Stevenage in January 2025

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Stevenage

The town of Stevenage is found in the county of Herts, on the borders of London and has a populace in excess of 84,000. As a small town and including plenty of the capital's overspill, Stevenage carries a population density of a mammoth 7,980 individuals for each sq . mile. In case you're interested in property enhancements within the town of Stevenage, make certain to really make the most out of vetted professionals in your community and do a comparison of quotations to get the best suited price.

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House extensions pros in Stevenage

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

Julian F., HP2
4

House Extensions in Hemel Hempstead

No quote received

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

Patricia Z., SE21
5

House Extensions in London

Great consultation by Catalin Spent a lot of time with us understanding the project and various options.

Similar Customer Enquiries for House extensions in Stevenage

20 Sep

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: Less than one month

wanna do etension , change bathroom and tiling in back and front garden are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no do yo...

Post a similar request >

16 Sep

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: Immediate

wanna do etension , change bathroom and tiling in back and front garden

Post a similar request >

31 Aug

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: Immediate

wanna do etension , change bathroom and tiling in back and front garden

Post a similar request >

26 Jan

House Extensions

Stevenage - SG2

Enquiry from: Daniel T

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: house extension agreed to receive quotes for selected products: yes pl...

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17 Apr

House Extensions

Stevenage - SG1

Enquiry from: Nadia T

Start Date: Immediate

Are you the property owner: Owner Have you considered getting your windows replaced to match a new conservatory: No Other Forms: House Extension Agreed to receive quotes for selected products: Yes Ple...

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04 Mar

House Extensions

Stevenage - SG1

Enquiry from: Peter M

Start Date: Immediate

A brick built porch with tiled roof a window and external door. Inside to include an electric shower + electric light internal and externally.Approx size 3 m x 1 m. Are you the property owner: Owner o...

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04 Mar

House Extensions

Stevenage - SG2

Enquiry from: Peter B

Start Date: Immediate

Build a porch on the front of the house with toilet facilities Are you the property owner: Owner of the property Do you have planning permission: No What material are you looking for: uPVC What mate...

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24 Feb

House Extensions

Stevenage - SG2

Enquiry from: Peter B

Start Date: Immediate

Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? New Build What material do you require, UPVC? Upvc What colour do you want it to be? UNsure I a...

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19 Feb

House Extensions

Stevenage - SG1

Enquiry from: Kelly C

Start Date: Immediate

Need extention not sure of lay out, or windows need shower room and wall knocking down

Post a similar request >

17 Feb

House Extensions

Stevenage - SG2

Enquiry from: Ash T

Start Date: Immediate

Are you the home owner of that property? Yes Are you replacing an existing porch or is this a new build? replacement porch What material do you require, UPVC? upvc What colour do you want it to be? Un...

Post a similar request >

21 Nov

House Extensions

Stevenage - SG2

Enquiry from: Alex L

Start Date: Immediate

Hi, I am about to complete the purchase process of a house purchase in a month and would like to have quotes the followings. Modular extension to the back of the house to achieve an open plan k...

Post a similar request >

20 May

House Extensions

Stevenage - SG2

Enquiry from: Shane W

Start Date: Less than one month

3m x 2m brick porch, tiled roof, plastered, upvc windows and door,replace 3m concrete path

Post a similar request >

17 May

House Extensions

Stevenage - SG2

Enquiry from: Shane W

Start Date: Less than one month

3m x 2m brick porch, tiled roof, plastered, upvc windows and door,replace 3m concrete path Customer is currently in the process of looking for quotes to add a Single storey extension to their property...

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13 May

House Extensions

Stevenage - SG2

Enquiry from: Shane W

Start Date: Less than one month

3m x 2m brick porch, tiled roof, plastered, upvc windows and door,replace 3m concrete path Customer is currently in the process of looking for quotes to add a Single storey extension to their property...

Post a similar request >

02 Feb

House Extensions

Stevenage - SG1

Enquiry from: Jacek W

Start Date: 1 to 3 months

Looking for a single storey extension (rear) in Stevenage Are you the property owner: Owner of the property Looking For: Single storey extension Do you have plans drawn up: Yes Do you have planning pe...

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29 Dec

House Extensions

Stevenage - SG2

Enquiry from: Daniel A

Start Date: Immediate

Old porch to me taken down and new one supplied and installed Are you the property owner: Owner of the property Do you have planning permission: No What material are you looking for: uPVC What mater...

Post a similar request >

04 Nov

House Extensions

Stevenage - SG1

Enquiry from: Isla M

Start Date: 1 to 3 months

Brick porch and 3 windows Are you the property owner: Owner of the property Do you have planning permission: No What material are you looking for: uPVC What material would you like the roof made from...

Post a similar request >

27 Sep

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: Immediate

wanna do extension in back side of house 3 mtrX 7mtr and in front of the house 1 mtr X2 mtr

Post a similar request >

18 Jul

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: Immediate

extension on back of house, new kitchen new bath also need tiles flooring and new carpet and wall paint

Post a similar request >

22 Jun

House Extensions

Stevenage - SG1

Enquiry from: Hitesh T

Start Date: 1 to 3 months

need extension in back side about 20 sq mtr and in front about 4 sq mtr also need new kitchen and bathroom and boiler Are you the property owner: Owner of the property Property Type: Terrace Looking F...

Post a similar request >

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FAQs

What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

when do you need planning permission for a house extension?

If you’re planning on adding a house extension to your property, you’d probably be worried about whether or not your proposed extension would require a planing permission. Well, it may be relieving to know that not every house extension project would require a formal consent, and in fact, several extensions are covered by the permitted development rights. Not only can this save you a considerable amount of time especially at the project’s planning phase, but it’ll also save you money on the application fee. In the UK, single storey extensions to the house’s rear can be 3 metres deep for both semi detached houses and terraces or 8 metres deep for detached homes.

So how do you know when you’d require a planning permission for your home extension? Well, if your extension plan fits these criteria explained below, then your project is most likely going to be allowable as a permitted development.

• Extensions, which includes previous additions, must not go beyond half of the original house’s total surrounding land area.

• The main elevation, or side elevation where it fronts the highway, must not be extended forward.

• For single storeys, the rear additions must not extend more than the original house’s rear by more than 3 metres in both semi attached homes and terraces (4 metres for detached houses).

• Extensions to the side must be a single storey with a height not exceeding 4 metres and not going beyond 50% of the original house’s width.

• Extensions hat within 2 metres of a boundary should have a eaves height not more than 3 metres.

• Multi storey addition must not extend beyond the original house’s rear wall by a maximum of 3 metres or 7 metres of the boundary opposite the rear wall.

• Permitted development rights do not apply in listed buildings or designated areas.

Can an extension add value to my home?

Yes. Most extensions will add substantial value to your home, and you may find that the extension adds more value than it cost. However, it’s important to be sure that the home remains balanced. Extending your garage and leaving your property with no parking spaces, for example, may impact your ability to sell.

how big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

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Stevenage House extensions installers are rated 4.2 out of 5 based on 7 reviews of 71 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Stevenage House extensions contractors
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