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House Extension in city

House extension comes with a wide range of advantages which makes it easy to see why the extension could be a fantastic uptick in the prospective rate of your home in terms of sales. So if you're seeking to develop a new house extension but still not encouraged about the task, we're below to help you. Being fully conscious any kind of house construction work is normally a heavy financial investment, there's a substantial need to be set on your decision before arranging the start of any type of work. So are house extensions worth it? Below are some of the leading benefits offered by house extensions to assist you decide if it's one of the most ideal path for you.

 

What's Associated with Building an Extension?

The actions will certainly vary relying on the extent of your extension, yet you can expect some, if not all, of the below to be entailed when including an extension to your home:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Inspecting your leasehold arrangement (if applicable) to make sure you can do what you intend to do.
  3. Hiring an architect  to create the plans, considering your expected usage ( cooking area, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy service provider to allow them understand of the intended job ahead of it starting.
  6. Getting car parking permits if required for your contractors to ensure they have easy accessibility to your property.
  7. Making sure all prepared work falls within permitted allowables.
  8. Cleaning the area and also digging deep into if essential, including the elimination of trees.
  9. Building work can start.

 

What is the price of a house extension in city?

If you're taking into consideration including a 2 storey house extension, after that setting a budget for this task would be a terrific means to get started. Similar to a back extension, a 2 floor extension generally leaves the rest of the building needing some job as well as, because of its dimension, this may imply the re-development of the entire house - which is why they can be really expensive. Several of the other influencing aspects that can have huge influence on a two storey house extension price consists of: your place, the size of the build, intricacy of the design (anything past the basic build will normally need more know-how and time), the glazing to be integrated (the a lot more the glass utilized in the job, the much more the material cost), as well as the team used.

Average House extensions cost in Crowborough

The regular cost of House extensions are £52,500 in Crowborough. Costs vary based upon the materials and the company picked. The upper price range can be as high as £69,333. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£39,000

Avg. price

Avg. price
£52,500

Avg. price high

Avg. price high
£69,333

£69900

£52425

£34950

£17475

£0

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

House extensions installation cost in Crowborough 2025

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

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Crowborough

Crowborough is a town in the Wealden district of East Sussex. It is a town in the High Weald Area of Outstanding National Beauty, being in the Weald at the borders of Ashdown Forest. This is a historic area of open heathland, denoting that it is secured because of its ecological significance, and it was even A. A. Milne's setting for Winnie the Pooh. The town's highest spot reaches 242 metres above sea level, which is a peak that is the highest point of the High Weald and among the acmes in East Sussex in general, coming 2nd to Ditchling Beacon. Thanks to its relative height measuring 159 metres, Crowborough certifies as one of England's Marilyns. The town established from a range of previously independent villages and hamlets, some of which include Jarvis Brook, Poundfield, Whitehill, Stone Cross, Alderbrook, Sweet Haws and Steel Cross. It lies 7 miles southwest of Royal Tunbridge Wells and 35 miles south of London. Other major towns that are close to the town feature Brighton and Crawley. Spread over an area of 5.3 square miles and having a population of 20607, it is the most densely inhabited inland town in East Sussex. Countless sporting activities take place in the town, being home to a rugby club, a tennis and squash club, a hockey club and a netball club, in addition to having a fishing association that owns 2 lakes in the town. Crowborough's principal football club is Crowborough Athletic F.C., which is located at the Crowborough Community Stadium and presently takes part in the Sussex County League Division One. There is also a wide variety of leisure premises for residents to select from. For all of your home upgrades, make certain to make use of trusted experts in Crowborough to make particular of quality.

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House extensions pros in Crowborough

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
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
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
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 Crowborough

04 May

House Extensions

Crowborough - TN6

Enquiry from: Aaron S

Start Date: Immediate

Customer is looking to have a house extension done. Please call to discuss

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20 Sep

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Crowborough - TN6

Enquiry from: Aristotle B

Start Date: Less than one month

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

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16 Jan

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Crowborough - TN6

Enquiry from: Andrew B

Start Date: 1 to 3 months

Single story extension with pitched roof 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 ...

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11 May

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Crowborough - TN6

Enquiry from: Sarah I

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1) Erection of single brick garage with pitched tiled roof attached to side of house. 2) Demolition of existing conservatory and erection of new single story brick extension along 2/3 length of back ...

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18 Feb

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Crowborough - TN6

Enquiry from: Christopher P

Start Date: 1 to 3 months

homeowner single storey extension may require assistance with plans 1-3 months please contact to appoint

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24 Nov

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Forest Row - RH18

Enquiry from: Oliver D

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

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12 Sep

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Hailsham - BN27

Enquiry from: James A

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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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15 Mar

House Extensions

Robertsbridge - TN32

Enquiry from: Matthew M

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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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20 Feb

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demolish old extension. which is 11ft ***. put in new extension, will include relocated bathroom and a living room, with bifold doors to the garden. a small lobby included. we will be having a new boi...

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02 Jan

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are you the property owner: owner of the property other forms: kitchen design & installation, house extension, gas boiler replacement agreed to receive quotes for selected products: yes please call t...

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17 Nov

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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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03 Oct

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Haywards Heath - RH16

Enquiry from: James H

Start Date: Less than one month

hi, 8x3.5m long side attaches to house one width wall with door, portion for wc are you the property owner: owner of the property looking for: single storey extension do you have planning permission:...

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27 Jul

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Burgess Hill - RH15

Enquiry from: Clayton M

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complete flatroof create studio apartment are you the property owner: owner of the property do you have plans drawn up: no looking for: single storey extension do you require electrical work: yes wou...

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03 Mar

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Haywards Heath - RH16

Enquiry from: Richard K

Start Date: Immediate

Are you the property owner: Owner of the property How many windows do you require: What level of service do you require: Supply and fit Other Forms: None Please call to appoint

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21 Feb

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Wadhurst - TN5

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09 Jun

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Uckfield - TN22

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29 Nov

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Uckfield - TN22

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3.5x5 meter single storey extension on the front with an en-suite bathroom and pitched roof

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30 May

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Lewes - BN7

Enquiry from: Hannah S

Start Date: Immediate

Homeowner Please contact to appoint

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FAQs

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 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 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.

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.

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