House Extension in city

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House Extension in city

House extension includes a large range of advantages that makes it easy to see why the extension could be a fantastic uptick in the possible rate of your residential or commercial property in regards to sales. So if you're seeking to construct a brand-new home extension however still not convinced concerning the project, we're right here to help you. Being completely aware any type of house construction job is usually a heavy financial investment, there's a massive need to be set on your choice prior to setting up the commencement of any work. So are house extensions worth it? Below are several of the leading benefits supplied by house extensions to help you make a decision if it's one of the most suitable course for you.

 

What's Associated with Adding an Extension?

The actions will differ depending on the scope of your extension, yet you can anticipate some, if not all, of the below to be entailed when adding an expansion to your residence:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold agreement (if applicable) to ensure you can do what you want to do.
  3. Getting an architect  to draw the plans, considering your expected usage (kitchen, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage provider to allow them know of the planned work ahead of it starting.
  6. Acquiring car parking allows if required for your professionals to ensure they have simple access to your property.
  7. Making certain all planned job drops within allowed allowables.
  8. Cleaning the area and excavating if essential, including the removal of trees.
  9. Building work can start.

 

What is the cost of a house extension in city?

If you're thinking about including a 2 storey house extension, then setting a allocate this task would certainly be a fantastic way to start. Similar to a back extension, a two floor extension normally leaves the rest of the structure requiring some job and, because of its dimension, this may imply the re-development of the whole house - which is why they can be very pricey. Some of the various other influencing factors that can have huge influence on a 2 floor house extension price includes: your place, the size of the build, intricacy of the design (anything beyond the typical build will usually need more proficiency as well as time), the glazing to be integrated (the a lot more the glass utilized in the job, the a lot more the product cost), in addition to the team made use of.

Average House extensions cost in East Sussex

The regular cost of House extensions are £52,000 in East 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 East Sussex, as reported by local LeadsDoWork members.

House extensions installation cost in East Sussex 2026

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

House extensions searches in June 2026

House extensions Projects in East Sussex in May 2026

23,918

Requests for quotations in East Sussex in May 2026

60

Requests for House extensions quotations in East Sussex in May 2026. -33% change from April 2026.

950

Requests for House extensions quotations in South East in May 2026. -10% change from April 2026.

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

House extensions searches in cities and towns near East Sussex May 2026

40

Requests for quotations in Brighton in May 2026

10

Requests for quotations in Hastings in May 2026

10

Requests for quotations in Crowborough in May 2026

10

Requests for quotations in Eastbourne in May 2026

10

Requests for quotations in Hove in May 2026

East Sussex

Found on the south coast of Great Britain, East Sussex is bordered by Kent, Surrey and West Sussex. Its population of 774,000 rates it at 29th in the UK, while enjoying an average population density of 1,120 people per square mile. Sussex in general has lots of traditional roots going back to the Saxons and Roman eras. To be certain your property will keep up-to-date and ensure top quality of work, be sure you use respectable companies in East Sussex.

Looking for House extensions in East Sussex?

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House extensions pros in East Sussex

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...

Similar Customer Enquiries for House extensions in East Sussex

22 Apr

House Extensions

Brighton - BN2

Enquiry from: Matt H

Start Date: Immediate

A quote for building works on a property we are trying to buy, based on a previous planning application. All drawings can be provided

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22 Apr

House Extensions

Seaford - BN25

Enquiry from: Matt H

Start Date: Immediate

Quote for works based on a previous planning application

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08 Apr

House Extensions

Eastbourne - BN22

Enquiry from: Amanda W

Start Date: Less than one month

customer in eastbourne 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 08/04/2023 15:14.please call to arra...

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20 Dec

House Extensions

Peacehaven - BN10

Enquiry from: Sally G

Start Date: 1 to 3 months

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

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24 Nov

House Extensions

Forest Row - RH18

Enquiry from: Oliver D

Start Date: Immediate

General property maintenance including painting, gardening, patio refurbishment, cleaning and more.

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08 Nov

House Extensions

Brighton - BN1

Enquiry from: RACHIT M

Start Date: Immediate

customer in the brighton 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 p...

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13 Sep

House Extensions

Seaford - BN25

Enquiry from: Valerie A

Start Date: 1 to 3 months

glass box to rear of bungalow approx depth 2.5 m x 3.5 m length. are you the property owner: owner of the property property type: detached looking for: single storey extension do you have planning pe...

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12 Sep

House Extensions

Hailsham - BN27

Enquiry from: James A

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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29 Aug

House Extensions

Eastbourne - BN20

Enquiry from: Laurence G

Start Date: 1 to 3 months

we want to extend and open the back of our 1920's house with a very simple box design. we are part of an art & crafts close . are you the property owner: owner of the property property type: detached...

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15 Apr

House Extensions

Brighton - BN2

Enquiry from: Vikki R

Start Date: Less than one month

extension at rear of (flat) property to increase living space. are you the property owner: owner of the property property type: other looking for: single storey extension do you have planning permissi...

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01 Dec

House Extensions

Hove - BN3

Enquiry from: Kamal B

Start Date: Less than one month

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

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01 Jul

House Extensions

St. Leonards-on-Sea - TN38

Enquiry from: Rosie S

Start Date: Immediate

extend over attached garage. either to extend 2 en-suites & create a shared walk in wardrobe, or to do that + an annexe are you the property owner: owner of the property property type: detached lookin...

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22 May

House Extensions

Polegate - BN26

Enquiry from: Alison D

Start Date: Immediate

We are building a 6m x 5m extension to our bungalow with a cathedral ceiling. We do not want to see any support for the internal roof trusses. We think using SIPs on the roof, approx roof area will ...

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15 Mar

House Extensions

Robertsbridge - TN32

Enquiry from: Matthew M

Start Date: Immediate

are you the property owner: owner of the property is this for a residential or commerial building: domestic other forms: house extension agreed to receive quotes for selected products: yes please cal...

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07 Jan

House Extensions

Brighton - BN2

Enquiry from: ELEANOR B

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: house extension agreed to receive quotes for selected products: yes pl...

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17 Nov

House Extensions

Lewes - BN7

Enquiry from: Anthony K

Start Date: Immediate

are you the property owner: owner of the property property type: semi detached how many bedrooms does the property have: 3-4 bedrooms other forms: house extension, building maintenance agreed to rece...

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07 Nov

House Extensions

St. Leonards-on-Sea - TN38

Enquiry from: Shammi B

Start Date: 1 to 3 months

room extension 12ft x9ft are you the property owner: owner of the property property type: semi detached looking for: single storey extension looking for: double storey extension do you have planning p...

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21 Feb

House Extensions

Wadhurst - TN5

Enquiry from: Adele G

Start Date: Immediate

2 storey side extension to include an en suite upstairs and office downstairs

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10 Jan

House Extensions

Hove - BN3

Enquiry from: Pavel M

Start Date: Immediate

6x3: 18m2 - 2 story extension + loft space (every floor single room with 2 windows) Email only, NO calls!! Thank you.

Post a similar request >

09 Sep

House Extensions

Brighton - BN1

Enquiry from: Andrew S

Start Date: Less than one month

Knock down garage and workshop Build 2 storey extension of 10ft x 22ft Build attached garage of approx 8ft x 15ft Knock through upstairs and install additional ensuite to master Knock through down...

Post a similar request >

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FAQs

are house extensions worth it?

Often referred to by many as the holy grail of home improvements, house extension comes with a wide range of benefits which makes it easy to see why the extension could be a great uptick in the potential price of your property in terms of sales. So if you’re looking to build a new home extension but still not convinced about the project, we’re here to help you. Being fully aware any home construction work is usually a heavy investment, there’s a huge need to be set on your decision before scheduling the commencement of any work. So are house extensions worth it? Below are some of the top benefits offered by house extensions to help you decide if it’s the most suitable route for you.

• Add To Your Home’s Value

Building an home extension is a great way to add value to your home before selling. Increasing the living space of your home is an incredible appeal to many buyers which significantly increases your property’s total value. However, you must ensure that the extension is impressively designed using top quality materials in order to generate more value.

• Good Alternative To House Moving

The most common reason for moving is usually due to a lack of sufficient space, but with house prices steadily on the increase a cost effective alternative is highly sought after. This alternative is house extension which creates more space for the household to spread out and have more privacy.

• You May Not Require A Planning Permission

You can extend your house and still not need to apply for a planning permission. To achieve this, simply comply with the laid down rules set under the permitted development rights.

• Extra Living Space

If you fill you’re starting to outgrow your existing structure and do not buy into the idea of moving, then your best bet might just be to extend your home.

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.

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.

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.

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