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House Extension in city

House extension features a wide variety of benefits which makes it easy to see why the extension could be a fantastic uptick in the potential price of your home in regards to sales. So if you're aiming to construct a new residence extension yet still not convinced concerning the job, we're right here to help you. Being fully conscious any type of residence construction job is normally a heavy investment, there's a massive need to be set on your decision prior to setting up the beginning of any type of job. So are house extensions worth it? Below are several of the top benefits supplied by house extensions to assist you determine if it's the most appropriate route for you.

 

What's Involved in Including an Extension?

The actions will vary relying on the extent of your extension, but you can expect some, otherwise all, of the listed below to be entailed when including an expansion to your residence:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Checking your leasehold arrangement (if relevant) to make certain you can do what you want to do.
  3. Enlisting an architect  to prepare the plans, considering your intended use ( cooking area, washroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage carrier to allow them know of the intended job ahead of it beginning.
  6. Obtaining car parking permits if required for your service providers to guarantee they have simple accessibility to your house.
  7. Ensuring all planned job falls within allowed allowables.
  8. Clearing the area and also excavating if needed, including the elimination of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're considering including a 2 floor house extension, after that establishing a allocate this job would be a great means to start. Comparable to a back extension, a 2 storey extension typically leaves the rest of the building requiring some work as well as, due to its size, this may indicate the re-development of the entire house - which is why they can be extremely pricey. A few of the other influencing elements that can have big impact on a two floor house extension expense consists of: your place, the dimension of the build, intricacy of the layout (anything past the conventional construct will generally need more knowledge as well as time), the glazing to be integrated (the extra the glass utilized in the job, the a lot more the product expense), along with the team used.

Average House extensions cost in Kensington and Chelsea

The regular cost of House extensions are £65,000 in Kensington and Chelsea. Costs vary based upon the materials and the company picked. The upper price range can be as high as £96,334. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£35,334

Avg. price

Avg. price
£65,000

Avg. price high

Avg. price high
£96,334

£96900

£72675

£48450

£24225

£0

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

House extensions installation cost in Kensington and Chelsea 2025

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

House extensions searches in March 2025

House extensions Projects in Kensington and Chelsea in February 2025

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Requests for quotations in Kensington and Chelsea in February 2025

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Requests for House extensions quotations in Kensington and Chelsea in February 2025. 0% change from January 2025.

1,000

Requests for House extensions quotations in London County in February 2025. 14% change from January 2025.

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

House extensions searches in cities and towns near Kensington and Chelsea February 2025

27

Requests for quotations in Westminster in February 2025

Kensington and Chelsea

The Royal Borough of Kensington and Chelsea is an inner London borough of Royal borough status, towards the west of the centre. The borough was established in 1965 from the former boroughs of Kensington and Chelsea. Kensington's Royal Borough status was inherited by the new borough. It covers an area of 4.68 square miles. As the smallest borough in London and the second smallest district in England, this urban area is amongst the most densely populated in the UK.

In accordance with estimates from the middle of 2014, the borough has a permanent population of about 156190 people.

The borough is immediately towards the west of the City of Westminster and towards the east of the London Borough of Hammersmith and Fulham. It consists of big museums and universities in Albertopolis, department stores including Harrods, Peter Jones and Harvey Nichols, and embassies in Belgravia, Knightsbridge and Kensington Gardens. It's home to the Notting Hill Carnival, Europe's largest. It contains lots of the most expensive residential districts in London and even in the world, and also districts with high levels of social housing and poverty. The local authority is Kensington and Chelsea London Borough Council. The borough's motto is Quam Bonum in Unum Habitare, which can be roughly translated as 'How good to dwell in unity'.

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House extensions pros in Kensington and Chelsea

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.

Nicholas James Construction

7 review(s)
Based: in Bromley, BR1 3AX

From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.

Latest review

Jagdish K., HA3
5

House Extensions in Harrow

Absolutely pleasant appointment. Very patient and polite, listened carefully to detail and more of my background and his...

Tectra Partnership Ltd

1 review(s)
Based: in Slough, SL3 0JE

Latest review

Deepak S., KT10
5

House Extensions in Esher

excellent communication

LW Building Service

2 review(s)
Based: in London, SE20 8AG

Latest review

Rosa S., SE20
3

House Extensions in London

I have not yet finalised quotation

JPA Building Construction LTD

1 review(s)
Based: in Twickenham , TW1 1AG

Latest review

Rosa S., SE20
5

House Extensions in London

Very nice and helpful unfortunately I am looking for a builder who lives nearby my property

Similar Customer Enquiries for House extensions in Kensington and Chelsea

21 Jul

House Extensions

London - SW5

Enquiry from: Arnab D

Start Date: Immediate

customer in london areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms at 21/07/2023 22:07.please call to arrange appointmen...

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05 Sep

House Extensions

London - SW6

Enquiry from: Amanda O

Start Date: Immediate

Glass extension across back of property into garden, approx 2.5 metres out

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25 Aug

House Extensions

London - SW18

Enquiry from: Len D

Start Date: Immediate

a lean to extension 3000mmx 6 000m i have the plans drawn up customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner:...

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28 Apr

House Extensions

London - SW6

Enquiry from: Shuhui L

Start Date: Immediate

Glass box extension/conservatory with a dimension of w3.6m x d2m x h3m Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have planni...

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09 Oct

House Extensions

London - W12

Enquiry from: Jennifer R

Start Date: Immediate

Property owner House extension Please call to appoint

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12 Feb

House Extensions

London - SW18

Enquiry from: Laurie M

Start Date: Immediate

Homeowner Please contact to appoint 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 P...

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20 Jan

House Extensions

London - W12

Enquiry from: Omar S

Start Date: Immediate

2 storey extension to the side of the house

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19 Nov

House Extensions

London - W2

Enquiry from: Pascal I

Start Date: Immediate

Homeowner Please contact to appoint

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06 Aug

House Extensions

London - SW9

Enquiry from: Steve L

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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04 Aug

House Extensions

London - W10

Enquiry from: Araminta L

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24 Jun

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London - SW6

Enquiry from: Victor M

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30 May

House Extensions

London - W10

Enquiry from: Justin H

Start Date: Immediate

Homeowner Please contact to appoint Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have planning permission: No Do you have plans...

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22 Jan

House Extensions

London - SW6

Enquiry from: Jennifer B

Start Date: Less than one month

*Homeowner House extension Supplied and fitted Please call to appoint

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17 Jan

House Extensions

London - SW6

Enquiry from: Jennifer B

Start Date: Less than one month

extention to kitchen 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: Te...

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02 Jan

House Extensions

London - W12

Enquiry from: Kirsty B

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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04 Dec

House Extensions

London - W10

Enquiry from: James K

Start Date: Immediate

Looking to get a quote for a side kitchen extension into the alleyway. Our rough estimations would be around 124 sq feet aprox. Are you the property owner: Owner of the property Property Type: Terrace...

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15 Sep

House Extensions

London - SW18

Enquiry from: Mei O

Start Date: 3+ months

Homeowner Please contact to appoint

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11 Sep

House Extensions

London - SW18

Enquiry from: Mei O

Start Date: 3+ months

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21 Aug

House Extensions

London - SW18

Enquiry from: Matthew O

Start Date: Immediate

Want to build a full ground floor extension on a new house around 6m by 12 m and as high as possible at back of the house - for Kitchen/living/games room Are you the property owner: Owner of the prope...

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16 Aug

House Extensions

London - SW18

Enquiry from: Diego L

Start Date: Immediate

Home Owner Call to appoint Are you the property owner: Owner of the property Property Type: Terrace Looking For: Double storey extension Do you have planning permission: Yes Do you have plans drawn u...

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FAQs

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 much does a two storey house extension cost?

If you’re considering adding a two storey house extension, then setting a budget for this project would be a great way to get started. Similar to a rear extension, a two storey extension usually leaves the rest of the building needing some work and, due to its size, this may imply the re-development of the entire house - which is why they can be very costly. Some of the other influencing factors that can have big impact on a two storey house extension cost includes: your location, the size of the build, complexity of the design ( anything beyond the standard build will normally require more expertise and time), the glazing to be incorporated ( the more the glass used in the project, the more the material cost), as well as the team used.

Generally, when it comes to extensions, the major part of the expenses will be made on the build of the project. This is because it doesn’t only cover the material cost but also the contractor’s overhead as well as the daily rates. At this stage, the extension prices can be determined by the standard of the work that’s being done.

For a fairly average room size of about 18 square metre, the two storey extension should cost within the range of £2,500 to £3,000 per square metre - with the range being determined by the finishes incorporated. Therefore, a two storey extension of about 18 square metre should cost within the range of £45,000 to £55,000. However, this is with the assumption that there are standard window sizes, bathroom suits are modest, and without any need for any purpose joinery or glazing. If you wish to include all these extra features you’ll also have to pay more to make the total cost between £70,000 to £80,000.

Should I use concrete or timber footings?

For 2 metre solid fences it’s recommended to use concrete posts to support each panel. For smaller 1 metre fences or for picket fences with gaps between each timber piece you can use timber posts. A fencing contractor will be able to advise you on the best materials from the length and requirements of a new fence.

where to start with a house extension?

Have you decided to improve your property instead of moving? The common problem most homeowners face after deciding to embark on a home extension project is not knowing where to start. In this article we’ll walk you through everything you need to consider and put in place before commencement of your home extension project.

• Is the extension worth it?

Before breaking the bank, you must be sure that the project will add good value to your home. In terms of “value, this is not only limited to the financial gain after disposal of the property, but also several other juicy benefits to be derived from extending your home like an extra living space for the household to spread out and more.

• Do you need a planning permission?

Check with your local authority to determine whether or not you’ll require to submit an application. You can also consult a building expert like an architect for advice.

• What are the building regulation?

Even though planning permission can be dodged, you can not avoid building regulations. These regulations are the set national minimum standards for construction and design which you must comply with to ensure the safety of the individuals in and around it.

• Who will design the extension?

You have to decided whether you’ll hire a professional architect to design the extension or not.

• Who will manage the building work?

If your home extension project is designed and built by a professional company, they’ll be responsible for the management. However, if you decide to use an architect or designed it yourself, you’ll have to hire a main contractor to manage the build.

• How to set the budget?

There are so many factors that can affect the cost of an extension, so it’s better to get the costs from your builder before proceeding.

• Do I need yo inform my home insurance firm?

Absolutely! This is very important as the new extension may affect the rebuilding cost of your property which could have an impact on the policy premium.

• Do I need to inform my neighbours?

It’s very important to discuss your plan with your neighbours before applying for a planning permission and communicate about the concerns they might have.

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