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House Extension in city

House extension features a large range of advantages which makes it very easy to see why the extension could be a excellent uptick in the prospective rate of your residential property in terms of sales. So if you're seeking to build a brand-new home extension but still not encouraged about the task, we're right here to assist you. Being completely mindful any kind of house construction job is usually a hefty financial investment, there's a substantial need to be set on your choice before arranging the beginning of any type of job. So are house extensions worth it? Below are several of the leading advantages offered by house extensions to aid you choose if it's one of the most appropriate path for you.

 

What's Involved in Adding an Extension?

The actions will differ relying on the range of your extension, however you can anticipate some, if not all, of the listed below to be involved when adding an extension to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold contract (if relevant) to make sure you can do what you intend to do.
  3. Getting an architect  to create the plans, considering your expected usage (kitchen, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage service provider to allow them understand of the planned job ahead of it beginning.
  6. Acquiring vehicle parking allows if required for your specialists to ensure they have easy access to your building.
  7. Making sure all intended job drops within permitted allowables.
  8. Cleaning the space and also excavating if needed, including the removal of trees.
  9. Structure job can begin.

 

What is the cost of a house extension in city?

If you're taking into consideration adding a two storey house extension, then setting a budget for this task would be a wonderful method to start. Similar to a back extension, a 2 storey extension usually leaves the remainder of the structure requiring some work as well as, due to its size, this might indicate the re-development of the whole house - which is why they can be extremely expensive. A few of the other affecting factors that can have large impact on a two storey house extension price consists of: your place, the size of the build, intricacy of the style (anything beyond the conventional construct will typically call for even more expertise as well as time), the glazing to be included (the extra the glass utilized in the job, the a lot more the material expense), as well as the team used.

Average House extensions cost in Kent

The regular cost of House extensions are £53,000 in Kent. Costs vary based upon the materials and the company picked. The upper price range can be as high as £75,600. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£32,400

Avg. price

Avg. price
£53,000

Avg. price high

Avg. price high
£75,600

£76100

£57075

£38050

£19025

£0

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

House extensions installation cost in Kent 2025

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

House extensions searches in May 2025

House extensions Projects in Kent in April 2025

29,649

Requests for quotations in Kent in April 2025

120

Requests for House extensions quotations in Kent in April 2025. 9% change from March 2025.

950

Requests for House extensions quotations in South East in April 2025. -10% change from March 2025.

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

House extensions searches in cities and towns near Kent April 2025

30

Requests for quotations in Canterbury in April 2025

17

Requests for quotations in Erith in April 2025

17

Requests for quotations in Gillingham in April 2025

14

Requests for quotations in Beckenham in April 2025

10

Requests for quotations in Dartford in April 2025

Kent

Kent is sometimes known as the Garden of England and boasts a population of 1.6 million. This makes it the seventh biggest district in Britain for population size and despite this, only has a density of 1,170 people per square mile. Kent is found in the southeast of England, with Canterbury its only city. Additional significant towns in the county include Maidstone, Dover and Folkestone, with the unitary district of Medway included as well within the county. For all of your home improvements, make sure you compare quotations from trustworthy companies in Kent to get the right price for the project.

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House extensions pros in Kent

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
3rd August 2024
5

House Extensions in London

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

Options Home Improvements LTD

1 review(s)
Based: in Kent, ME8 0DB

Here at Options Home Improvements we specialize is the bespoke design & installation of PVCu & Aluminium, windows and doors, orangeries & conservatories in Gillingham, Kent & South East area. Options Home Improvements was started due to the seemi...

Latest review

Lisa V., ME1
7th August 2016
5

House Extensions in Rochester

I haven't had the extension built yet but am planning to use them

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
4th October 2016
5

House Extensions in Harrow

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

LW Building Service

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

Latest review

Rosa S., SE20
10th October 2015
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
10th October 2015
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 Kent

14 Apr

House Extensions

Faversham - ME13

Enquiry from: Olivia S

Start Date: Immediate

What type of property is this for? House What type of extension do you need? Single storey extension When was the property built? 1921 to 1979 How many stories is the current building? 2 Storeys D...

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20 Mar

House Extensions

Erith - DA8

Enquiry from: John N

Start Date: Immediate

Customer made enquiry for House Extension quotes online. Homeowner lives in Erith area. Please call to arrange appointment

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06 Mar

House Extensions

Canterbury - CT1

Enquiry from: Merlin J

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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20 Jan

House Extensions

Welling - DA16

Enquiry from: Marlon M

Start Date: 1 to 3 months

are you the property owner: owner of the property property type: terrace looking for: single storey extension do you have planning permission: yes do you have plans drawn up: yes time scale: 1-3 mont...

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28 Oct

House Extensions

Tonbridge - TN10

Enquiry from: John C

Start Date: Less than one month

customer made an enquiry for house extension and confirmed on the local quotes site they would like quotes from a builder.mr lives in the tonbridge area and would like a call to discuss options.see be...

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21 Oct

House Extensions

Tunbridge Wells - TN4

Enquiry from: Steve M

Start Date: Less than one month

looking for a ground floor 9mx3m extention and loft conversion customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owne...

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14 Oct

House Extensions

Erith - DA8

Enquiry from: Aaron F

Start Date: Immediate

Customer made an online enquiry for House Extension via one of our websites. Confirmed via . Please call to arrange an appointment to quote.

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23 Sep

House Extensions

Rochester - ME2

Enquiry from: Christopher I

Start Date: Immediate

i am interested too see if i can extend the rear of my house with an extension,that is consisting of roughly 18ft wide ,9ft high ,10 ft in depth .many thanks

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08 Aug

House Extensions

Sheerness - ME12

Enquiry from: Terry K

Start Date: Immediate

Looking for a side extension at approx 7m x 3m. Thanks

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02 Jul

House Extensions

West Malling - ME19

Enquiry from: Arjun V

Start Date: Immediate

Kitchen extension approx 24sq m. Bifold or sliding doors 6.5m. sloped roof with several roof windows

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07 Jun

House Extensions

Tonbridge - TN10

Enquiry from: James S

Start Date: Immediate

Dormer Loft conversion for 1 bedroom and an ensuite to the rear of the property.

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28 May

House Extensions

Ashford - TN24

Enquiry from: Zainab K

Start Date: Immediate

first floor extension to add an en-suite in a bedroom

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24 Apr

House Extensions

Ashford - TN25

Enquiry from: Rangy H

Start Date: Immediate

homeowner house extension please call to appoint

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24 Apr

House Extensions

Ashford - TN25

Enquiry from: Rangy H

Start Date: Immediate

homeowner house extension please call to appoint

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12 Apr

House Extensions

Dartford - DA2

Enquiry from: Vijay K

Start Date: Immediate

property owner house extension please call to appoint

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19 Nov

House Extensions

Sevenoaks - TN15

Enquiry from: Tom W

Start Date: 1 to 3 months

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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01 Nov

House Extensions

Erith - DA8

Enquiry from: Bola A

Start Date: Immediate

Homeowner House extension Please contact to appoint

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11 Aug

House Extensions

Gravesend - DA11

Enquiry from: Ola Y

Start Date: Immediate

customer in gravesend area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to d...

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12 May

House Extensions

Ramsgate - CT11

Enquiry from: Roy P

Start Date: 1 to 3 months

customer in ramsgate areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms and email at 12/05/2023 08:46.please call to arrang...

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29 Apr

House Extensions

Chatham - ME4

Enquiry from: Mohamed L

Start Date: Immediate

customer made an enquiry for house extension and confirmed on the quotatis site they would like quotes from a builder.mr lives in the chatham area and would like a call to discuss options.see below de...

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FAQs

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.

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.

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.
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.

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Kent House extensions installers are rated 4.3 out of 5 based on 15 reviews of 169 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 Kent House extensions contractors
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