House Extension in city

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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 £62,143 in Kensington and Chelsea. Costs vary based upon the materials and the company picked. The upper price range can be as high as £91,143. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£34,572

Avg. price

Avg. price
£62,143

Avg. price high

Avg. price high
£91,143

£91700

£68775

£45850

£22925

£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 2026

Labour cost £27,000
Material cost £10,500
Waste removal £2,500
Time frame: 10-14 weeks
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House extensions on Google in Kensington and Chelsea

Google searches that showed Local Quotes, 18 July to 15 October 2026

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Searches that showed one of our pages for Kensington and Chelsea, all services

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

House extensions searches near Kensington and Chelsea, 18 July to 15 October 2026

7

Searches that showed our page for Ealing

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 Extension in London

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

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 Extension in Hemel Hempstead

No quote received

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 Extension 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 Extension in Esher

excellent communication

LW Building Service

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

Latest review

Rosa S., SE20
3

House Extension 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 Extension in London

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

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FAQs

how much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

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.
how much is a double house extension?

A double house extension is basically a construction to any aspect of your house that elevates up to offer two floors of space. It can be structured to suit your existing home in two storeys or as a side wing on a taller property. If you’re considering building a double house extension, then estimating the cost is a very important task to do before commencing the project. In this article, we’ll give you an idea of the cost of a double house extension so you can estimate yours accordingly.

The double house extension cost depends on several factors that’s specific to your home as well as your design choice. These includes:

• Location of your property. Places like London and the southeast will generally cost more than the other regions due to higher demands.

• Accessibility of the site. The ease of your site’s accessibility also plays a key role in the price.

• Size of the extension. The more the extension’s size in footprint and square metres, the higher the possible costs.

• Materials used in making the roof as well as the complexity of the roof design.

• Your choice of finishing. These includes flooring window and door frames, glazing, underfloor heating and roof lights.

• Your property’s soil type. Different types of soil requires varying treatments as well as materials to develop solid foundations.

Constructing a double house extension is a quite simple build in terms of technicality when its to the side or rear of your house as this can also help you save some money. Generally, considerably expanding your home’s space by building a double house extension will cost within the range of £1,500 per m2 to about £2,800 per m2.

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.

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Kensington and Chelsea House extensions pros are rated 4.4 out of 5 on average: 17 rated pros, 67 reviews, of 142 pros covering the area.
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 Kensington and Chelsea House extensions contractors

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