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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 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...

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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

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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

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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

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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...

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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...

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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

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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...

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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...

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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

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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...

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FAQs

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 I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

Do I need my neighbours’ permission for an extension?

Well the reality is, sometimes, neighbours just don’t get along. With several individuals living in close proximity, it’s little surprise they tend to get on one another’s nerves from time to time. However, there’s a difference between having a tiff and being able to transform your house the way you want without having to obtain your neighbour’s approval.

The short and simple answer to this question is, not necessarily. However, you must first educate yourself by thinking about your extension and how it affects the houses around you. We’d strongly recommend you talk proposals through with your neighbour so as to avoid possible conflicts later. There are a number of reasons why your neighbour can protest to your new home extension plans. Let’s take a look!

 

  • In the event whereby your new extension is blocking their view or providing an unwanted shade on their property. Here, they have a legitimate reason to protest as no one would want their once sunny garden suddenly covered or plummet into shade.
  • In the event where it leads to a loss of privacy. For instance, if your new extension possesses a window which overlooks the neighbour’s property in any way. This is likely to be taken as an invasion of privacy and that has a little to no chance of being a welcomed idea.
  • If it’s a major project and going to take a lot of weeks before completion. The noise generated, especially when your neighbours are enjoying your summer holidays or weekends, can make their gardens not as relaxing as it used to be.
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