House Extension in city

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House Extension in city

House extension includes a variety of benefits that makes it very easy to see why the extension could be a great uptick in the potential cost of your building in regards to sales. So if you're aiming to develop a new residence extension but still not convinced concerning the job, we're below to help you. Being totally aware any home building and construction work is normally a heavy investment, there's a big requirement to be set on your choice prior to setting up the commencement of any kind of work. So are house extensions worth it? Below are several of the top benefits supplied by house extensions to assist you make a decision if it's the most ideal route for you.

 

What's Associated with Building an Extension?

The actions will vary depending upon the scope of your extension, however you can expect some, otherwise all, of the below to be included when adding an extension to your house:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if applicable) to make sure you can do what you want to do.
  3. Getting an architect  to draw the plans, considering your planned use ( kitchen area, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy service provider to allow them know of the intended work ahead of it beginning.
  6. Getting vehicle parking permits if needed for your service providers to guarantee they have very easy accessibility to your residential property.
  7. Making sure all intended job falls within permitted allowables.
  8. Clearing the area as well as excavating if necessary, consisting of the removal of trees.
  9. Structure work can start.

 

What is the expense of a house extension in city?

If you're thinking about including a 2 storey house extension, then establishing a budget for this project would certainly be a fantastic way to get going. Similar to a back extension, a two floor extension typically leaves the remainder of the structure needing some job as well as, because of its size, this may indicate the re-development of the entire house - which is why they can be very pricey. Some of the other influencing aspects that can have large influence on a two storey house extension expense consists of: your area, the dimension of the build, intricacy of the style (anything past the conventional develop will generally need even more proficiency as well as time), the glazing to be included (the more the glass utilized in the task, the much more the material expense), in addition to the group utilized.

Average House extensions cost in West Sussex

The regular cost of House extensions are £52,000 in West Sussex. Costs vary based upon the materials and the company picked. The upper price range can be as high as £71,600. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£34,400

Avg. price

Avg. price
£52,000

Avg. price high

Avg. price high
£71,600

£72100

£54075

£36050

£18025

£0

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

House extensions installation cost in West Sussex 2026

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

House extensions searches in August 2026

House extensions Projects in West Sussex in July 2026

15,907

Requests for quotations in West Sussex in July 2026

70

Requests for House extensions quotations in West Sussex in July 2026. -13% change from June 2026.

950

Requests for House extensions quotations in South East in July 2026. -10% change from June 2026.

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

House extensions searches in cities and towns near West Sussex July 2026

10

Requests for quotations in East Grinstead in July 2026

10

Requests for quotations in Worthing in July 2026

10

Requests for quotations in Arundel in July 2026

10

Requests for quotations in Chichester in July 2026

10

Requests for quotations in Horsham in July 2026

West Sussex

The southern district of West Sussex is bordered by Hampshire, Surrey and East Sussex and features a coastal line along the south coast of Great Britain. Having half of the region being protected countryside, much of the population dwell within the county's only city, Chichester, along with the large towns of Crawley, Worthing and Horsham. Its population of practically 800,000 makes it the 27th biggest region by population in England, having a density of 1,040 individuals per square mile. When you require any property developments in East Sussex, be sure to review quotations from local, respectable businesses to find the right price.

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House extensions pros in West Sussex

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
25th February 2022
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
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.

Similar Customer Enquiries for House extensions in West Sussex

01 Oct

House Extensions

Chichester - PO20

Enquiry from: Doug S

Start Date: Immediate

are you the property owner: owner of the property property type: semi detached looking for: single storey extension do you have planning permission: no do you have plans drawn up: no do you require p...

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22 Mar

House Extensions

Arundel - BN18

Enquiry from: Samuel C

Start Date: Immediate

what type of property is this for? house what type of extension do you need? two storey extension when was the property built? 1921 to 1979 how many stories is the current building? 2 storeys do you h...

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03 Feb

House Extensions

Worthing - BN14

Enquiry from: Charlie T

Start Date: Immediate

customer is looking for quotes for house extension from pros around worthing. please call to arrange appointment to discuss are you the property owner: owner of the property looking for: single storey...

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24 Sep

House Extensions

Crawley - RH10

Enquiry from: James D

Start Date: Immediate

House extention In back or side of garden

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12 Jun

House Extensions

Chichester - PO19

Enquiry from: Sonu T

Start Date: Immediate

customer in chichester areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via telephone, sms and email at 12/06/2023 08:01.please c...

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11 Apr

House Extensions

Bognor Regis - PO21

Enquiry from: Darren Y

Start Date: Immediate

mr requested quotes for house extension from a builder around bognor regis. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information belo...

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22 Mar

House Extensions

Bognor Regis - PO21

Enquiry from: Darren Y

Start Date: Immediate

customer in bognor regis areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via email at 22/03/2023 21:48.please call to arrange ap...

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07 Feb

House Extensions

East Grinstead - RH19

Enquiry from: Sarah I

Start Date: Immediate

A 3m x 4m extention with garden side to be bifold doors and tiled roof with skylight. heating and and electrics incorporated

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11 Nov

House Extensions

Hassocks - BN6

Enquiry from: James B

Start Date: Immediate

homeowner house extension please call to appoint

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07 Nov

House Extensions

Hassocks - BN6

Enquiry from: James B

Start Date: Immediate

homeowner house extension please call to appoint

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15 Sep

House Extensions

East Grinstead - RH19

Enquiry from: Brian M

Start Date: Immediate

Looking for approx all in price to build sips house circa 3000 to 3500 sq ft. Plus size about 3/4 acre

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13 Sep

House Extensions

Bognor Regis - PO21

Enquiry from: Barrie S

Start Date: Immediate

customer in the bognor regis area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you t...

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30 Mar

House Extensions

Littlehampton - BN16

Enquiry from: Paul W

Start Date: Immediate

customer made an online enquiry for house extension and confirmed on email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. are you the property ...

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08 Feb

House Extensions

Lancing - BN15

Enquiry from: Larisa S

Start Date: Immediate

customer in the lancing area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pr...

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06 Oct

House Extensions

Lancing - BN15

Enquiry from: Amy T

Start Date: Immediate

customer in the lancing area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pr...

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20 Sep

House Extensions

Crawley - RH10

Enquiry from: Tazeem A

Start Date: Immediate

*homeowner house extension please call to appoint

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12 Jul

House Extensions

Crawley - RH10

Enquiry from: Saber A

Start Date: 1 to 3 months

hi, i'm interested in extending an existing room over the garage. so it will involve knocking one was down and an extension of roughly 3mx4m. would like to know the cost with an ensuite and without. a...

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08 Jul

House Extensions

Horsham - RH12

Enquiry from: Reynald D

Start Date: Immediate

mr requested quotes for house extension from a builder around horsham. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is ...

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01 Jul

House Extensions

Crawley - RH10

Enquiry from: Gareth J

Start Date: Immediate

mr requested quotes for house extension from a builder around crawley. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is ...

Post a similar request >

30 Jun

House Extensions

Horley - RH6

Enquiry from: Renu G

Start Date: Immediate

rear extension for 39 sq metre side extension for 67 sq metre outside garden bldg 35 sq metre ( external wood cladding) customer is currently in the process of looking for quotes to add a single sto...

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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.

how to finance a house extension?

Do you want to beautify and increase the value of your home? If yes, a refurb and house extension is definitely a great option to consider. Depending on your home extension project, the value that’ll be added to your home’s resale value varies. However, the cost of completing a house extension project can be huge, so you just might want to consider your financing options. Fortunately, there are various options through which your house extension project can be funded with each having its own pros and cons. Your specific circumstances will determine the one that’s going to work best for you, so let’s take a look at some of the best options to help you fund your project.

• Home Remortgaging

The process whereby a mortgage is transferred from one provider to the other is known as remortgaging. This is usually done to generate funds for a project by entering a more lengthy repayment term commitment when switching. If you want to raise your funds in a quick manner, this process works best.

• Savings

This is a good reason to cultivate a good saving habits. If you’ve been able to save up some mega bucks then you’d probably won’t have to borrow money to finance your house extension.

• Unsecured Loans

If you do not buy into the idea of borrowing more against your property, you may just be able to apply for an unsecured loan especially if you have a good credit record. A secured loan makes use of collaterals like a car or house to serve as a cover for the lender, meanwhile an unsecured loan is based mainly on the credit managing history of the borrower.

• Credit Card

There are some great benefits that comes with financing your small or medium scale extension project with your credit card. Not only does it offer some real lifeline if problems arise during the project, but you can also avoid paying excessive interest on the investment by ensuring your deal has a 0% introductory rate.

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.

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.

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