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House Extension in city

House extension includes a wide variety of benefits that makes it simple to see why the extension could be a wonderful uptick in the potential rate of your building in terms of sales. So if you're seeking to construct a new home extension yet still not persuaded about the project, we're below to assist you. Being totally conscious any type of house building job is usually a hefty financial investment, there's a huge demand to be set on your choice prior to scheduling the start of any kind of job. So are house extensions worth it? Below are a few of the top benefits offered by house extensions to aid you determine if it's the most suitable route for you.

 

What's Associated with Building an Extension?

The steps will differ relying on the range of your extension, but you can anticipate some, if not all, of the below to be entailed when adding an extension to your home:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold agreement (if relevant) to make certain you can do what you wish to do.
  3. Employing an architect  to draw up the plans, considering your planned usage (kitchen, restroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance company to allow them understand of the planned work ahead of it beginning.
  6. Getting car parking permits if needed for your professionals to guarantee they have easy accessibility to your property.
  7. Ensuring all prepared job drops within permitted allowables.
  8. Clearing the area and also digging deep into if needed, consisting of the elimination of trees.
  9. Building job can start.

 

What is the price of a house extension in city?

If you're considering adding a 2 floor house extension, then setting a budget for this job would be a terrific method to begin. Similar to a rear extension, a two floor extension normally leaves the remainder of the building requiring some work as well as, due to its size, this may suggest the re-development of the entire house - which is why they can be really expensive. Some of the other influencing variables that can have large impact on a 2 storey house extension expense includes: your area, the size of the build, intricacy of the layout (anything beyond the conventional construct will generally need even more know-how as well as time), the glazing to be incorporated (the more the glass made use of in the project, the a lot more the product cost), in addition to the team made use of.

Average House extensions cost in Seaford

The regular cost of House extensions are £41,250 in Seaford. Costs vary based upon the materials and the company picked. The upper price range can be as high as £54,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£33,500

Avg. price

Avg. price
£41,250

Avg. price high

Avg. price high
£54,000

£54500

£40875

£27250

£13625

£0

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

House extensions installation cost in Seaford 2025

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

House extensions searches in February 2025

House extensions Projects in Seaford in January 2025

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Requests for quotations in Seaford in January 2025

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Requests for House extensions quotations in Seaford in January 2025. -100% change from December 2024.

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Requests for House extensions quotations in East Sussex in January 2025. -33% change from December 2024.

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

House extensions searches in cities and towns near Seaford January 2025

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Requests for quotations in Brighton in January 2025

10

Requests for quotations in Worthing in January 2025

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Requests for quotations in Arundel in January 2025

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Requests for quotations in Hove in January 2025

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Requests for quotations in Eastbourne in January 2025

Seaford

Seaford is a coastal town in the county of East Sussex, on the southern coastline of England. East Sussex is a well-liked area for commuters due to its proximity to the capital city of London and also excellent train connections.

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Similar Customer Enquiries for House extensions in Seaford

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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25 Feb

House Extensions

Seaford - BN25

Enquiry from: Lee P

Start Date: Immediate

2 storey extension approx 14 square metres Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Double storey extension Do you have planning permission: No Do yo...

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02 Mar

House Extensions

Seaford - BN25

Enquiry from: Sophia T

Start Date: 3+ months

Pitched roof extension and new kitchen. Ideally glass roof or parts glass, bi-fold doors.

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25 Jun

House Extensions

Seaford - BN25

Enquiry from: Jo P

Start Date: Immediate

two-storey side extension measuring approx. 3m x 4m

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25 Mar

House Extensions

Seaford - BN25

Enquiry from: Lisa F

Start Date: Immediate

Small dormer extension to bathroom. - : - : - :

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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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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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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

House extensions Lead House extensions Lead

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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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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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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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.

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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...

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04 Mar

House Extensions

Brighton - BN2

Enquiry from: Paul C

Start Date: Immediate

We are looking at getting at least 3 quotes together for a single storey extension added into a garage conversion. New concrete steps access to be included in quote on the other side of the house. ...

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23 Oct

House Extensions

Brighton - BN1

Enquiry from: Patrick R

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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24 Aug

House Extensions

Hove - BN3

Enquiry from: Qasim H

Start Date: Immediate

Extension of rear house to replace a make shift conservatory (just glass with metal frame - relatively easy to remove) however it is raised about 2-3 ft off the ground on a wooden platform - not sure ...

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21 Aug

House Extensions

Eastbourne - BN22

Enquiry from: Pradeep C

Start Date: 1 to 3 months

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 Pl...

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08 Aug

House Extensions

Peacehaven - BN10

Enquiry from: Phil a

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Detached Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Plumbin...

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FAQs

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.

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.

when do you need planning permission for a house extension?

If you’re planning on adding a house extension to your property, you’d probably be worried about whether or not your proposed extension would require a planing permission. Well, it may be relieving to know that not every house extension project would require a formal consent, and in fact, several extensions are covered by the permitted development rights. Not only can this save you a considerable amount of time especially at the project’s planning phase, but it’ll also save you money on the application fee. In the UK, single storey extensions to the house’s rear can be 3 metres deep for both semi detached houses and terraces or 8 metres deep for detached homes.

So how do you know when you’d require a planning permission for your home extension? Well, if your extension plan fits these criteria explained below, then your project is most likely going to be allowable as a permitted development.

• Extensions, which includes previous additions, must not go beyond half of the original house’s total surrounding land area.

• The main elevation, or side elevation where it fronts the highway, must not be extended forward.

• For single storeys, the rear additions must not extend more than the original house’s rear by more than 3 metres in both semi attached homes and terraces (4 metres for detached houses).

• Extensions to the side must be a single storey with a height not exceeding 4 metres and not going beyond 50% of the original house’s width.

• Extensions hat within 2 metres of a boundary should have a eaves height not more than 3 metres.

• Multi storey addition must not extend beyond the original house’s rear wall by a maximum of 3 metres or 7 metres of the boundary opposite the rear wall.

• Permitted development rights do not apply in listed buildings or designated areas.

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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