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 £53,750 in West Sussex. Costs vary based upon the materials and the company picked. The upper price range can be as high as £74,500. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£35,500

Avg. price

Avg. price
£53,750

Avg. price high

Avg. price high
£74,500

£75000

£56250

£37500

£18750

£0

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

House extensions installation cost in West Sussex 2025

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

House extensions searches in April 2025

House extensions Projects in West Sussex in March 2025

15,907

Requests for quotations in West Sussex in March 2025

70

Requests for House extensions quotations in West Sussex in March 2025. -13% change from February 2025.

950

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

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

House extensions searches in cities and towns near West Sussex March 2025

10

Requests for quotations in Bognor Regis in March 2025

10

Requests for quotations in Crawley in March 2025

10

Requests for quotations in Horsham in March 2025

10

Requests for quotations in Arundel in March 2025

10

Requests for quotations in East Grinstead in March 2025

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

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 ...

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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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28 Jun

House Extensions

Crawley - RH11

Enquiry from: Nicola P

Start Date: 1 to 3 months

add a second floor or roof conversion to a bungalow are you the property owner: owner of the property property type: detached looking for: single storey extension do you have planning permission: no d...

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FAQs

how big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

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.

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.
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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