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House extension features a wide range of advantages which makes it very easy to see why the extension could be a terrific uptick in the potential cost of your residential property in terms of sales. So if you're wanting to develop a new house extension however still not convinced regarding the project, we're here to aid you. Being fully conscious any type of house construction job is typically a heavy investment, there's a big demand to be set on your decision before setting up the beginning of any job. So are house extensions worth it? Below are some of the top advantages used by house extensions to assist you choose if it's one of the most suitable path for you.

 

What's Associated with Adding an Extension?

The actions will certainly differ relying on the scope of your extension, however you can anticipate some, if not all, of the listed below to be included when adding an extension to your home:

 

  1. Obtaining Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold arrangement (if applicable) to see to it you can do what you want to do.
  3. Enlisting an architect  to draw up the plans, considering your planned usage (kitchen, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance policy provider to allow them know of the intended job ahead of it starting.
  6. Getting car parking permits if needed for your specialists to ensure they have simple access to your house.
  7. Seeing to it all prepared job drops within permitted allowables.
  8. Cleaning the space as well as excavating if essential, including the elimination of trees.
  9. Structure job can begin.

 

What is the cost of a house extension in city?

If you're thinking about including a two floor house extension, then setting a budget for this task would certainly be a excellent way to start. Comparable to a back extension, a 2 storey extension generally leaves the remainder of the building requiring some work as well as, as a result of its dimension, this may suggest the re-development of the entire house - which is why they can be extremely expensive. A few of the other affecting aspects that can have big impact on a 2 storey house extension expense includes: your place, the size of the build, complexity of the style (anything past the conventional build will typically require even more proficiency as well as time), the glazing to be included (the a lot more the glass made use of in the job, the much more the product expense), as well as the group used.

Average House extensions cost in Cowes

The regular cost of House extensions are £50,000 in Cowes. Costs vary based upon the materials and the company picked. The upper price range can be as high as £68,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£42,000

Avg. price

Avg. price
£50,000

Avg. price high

Avg. price high
£68,000

£68500

£51375

£34250

£17125

£0

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

House extensions installation cost in Cowes 2025

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

House extensions searches in June 2025

House extensions Projects in Cowes in May 2025

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Requests for House extensions quotations in Cowes in May 2025. -60% change from April 2025.

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Requests for House extensions quotations in Isle Of Wight in May 2025. -100% change from April 2025.

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Cowes

Cowes is an English port town and civil parish on the Isle of Wight. Cowes is situated on the west financial institution of the estuary of the River Medina, facing the smaller sized town of East Cowes on the eastern financial institution. The two communities are connected by the Cowes Drifting Bridge, a chain ferryboat. The population was 9,663 in the 2001 census, which doubled during the regatta in very early August. The population at the 2011 census was 10,405. Charles Godfrey Leland's 19th century verses explain the communities poetically as "The two terrific Cowes that in loud rumbling roar/This on the eastern, that the western coast". Cowes has actually been viewed as a residence for global yacht racing since the beginning of the Royal Yacht Squadron in 1815. It offers its name to the globe's earliest routine regatta, Cowes Week, which happens annually in the initial week of August. Later on, powerboat races are held. Much of the town's design is still greatly influenced by the design of ornate building that Prince Albert popularised.

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Similar Customer Enquiries for House extensions in Cowes

12 Feb

House Extensions

Cowes - PO31

Enquiry from: Philip P

Start Date: Immediate

i am looking to have a detached or a pre-fabricated ( concrete etc ) garage built along side my house. there is already a block driveway so it will be the concrete slab and the garage that is require...

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19 Jan

House Extensions

Cowes - PO31

Enquiry from: Philip P

Start Date: 1 to 3 months

i am looking to have constructed a large detached garage with a " living space " of up to 30 sq m therefore i am looking for a suitable quotation for the work required customer is currently in the pr...

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06 Feb

House Extensions

Cowes - PO31

Enquiry from: Mario I

Start Date: Immediate

Single story and garage

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24 Sep

House Extensions

Cowes - PO31

Enquiry from: Karen T

Start Date: Immediate

An extension on the back of the house that is within permitted development

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18 Aug

House Extensions

Cowes - PO31

Enquiry from: D

Start Date: Immediate

balcony from upstairs bedroom

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12 Mar

House Extensions

Cowes - PO31

Enquiry from: Sylvia F

Start Date: 1 to 3 months

Marley Cladding to the main part of the house (detached) Are you the property owner: Owner of the property Do you have planning permission: No Would you require assistance to gain this: No Do you ...

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12 Sep

House Extensions

Lymington - SO41

Enquiry from: Charlie S

Start Date: Immediate

Second floor side extension, SIP walls and roof

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17 Aug

House Extensions

Newport - PO30

Enquiry from: Crispin K

Start Date: Less than one month

two bay open garage with lockable store room, preferable in oak customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property own...

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19 Jul

House Extensions

Newport - PO30

Enquiry from: Elvie Z

Start Date: Immediate

Merry 3x5 kitchen and dinning room extension

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15 Jun

House Extensions

Ryde - PO33

Enquiry from: Rob C

Start Date: Immediate

woottton bridge. app 10ft x 20ft garage/studio build required to replace old shed. suggestions welcome are you the property owner: owner of the property property type: semi detached do you have plans ...

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16 Mar

House Extensions

Southsea - PO4

Enquiry from: Leeann R

Start Date: Immediate

Looking for a glass box extension 3 m wide x 2 m depth x 270 h

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09 Jan

House Extensions

Newport - PO30

Enquiry from: Gemma F

Start Date: Less than one month

we already have an extension but we would like to discuss making it one big kitchen/diner instead of 2 separate rooms. we have a few ideas but not sure about any of them so would like some advice. ma...

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30 Dec

House Extensions

Yarmouth - PO41

Enquiry from: Ewa K

Start Date: Immediate

40 square meters bungalow extension to provide kitchen, utility/shower/toilet and study. Mains drainage and utilities very close.

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18 Aug

House Extensions

Yarmouth - PO41

Enquiry from: Rebecca W

Start Date: 1 to 3 months

tiny, i mean tiny 1m square outside loo extension are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no do you have plans drawn up:...

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23 Jul

House Extensions

Totland Bay - PO39

Enquiry from: Peter G

Start Date: Immediate

extending living room along two walls and knocking it together with the adjacent kitchen to create a large open-plan space with lots of glass. customer is currently in the process of looking for quot...

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04 May

House Extensions

Seaview - PO34

Enquiry from: Janine S

Start Date: Immediate

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

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03 May

House Extensions

Sandown - PO36

Enquiry from: Karl D

Start Date: Immediate

I am looking for a prefabricated concrete garage of approx 18ft x 8.5ft with a up and over door to give 1.95m of clearance for a Land Rover, a pitched roof, a side door and a window. There is a concre...

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04 Mar

House Extensions

Yarmouth - PO41

Enquiry from: Mark V

Start Date: Immediate

A detached single skin garage with pitched tiled roof. Rendered finish walls with cladding to gable walls, with personal door, up and over door and single window. Approx. size 20ft x 11ft. Customer i...

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01 Mar

House Extensions

Yarmouth - PO41

Enquiry from: Mark V

Start Date: Immediate

A detached single skin garage with pitched tiled roof. Rendered finish walls with cladding to gable walls, with personal door, up and over door and single window. Approx. size 20ft x 11ft. Customer i...

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26 Feb

House Extensions

Yarmouth - PO41

Enquiry from: Mark V

Start Date: Immediate

A detached single skin garage with pitched tiled roof. Rendered finish walls with cladding to gable walls, with personal door, up and over door and single window. Approx. size 20ft x 11ft. Customer i...

Post a similar request >

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FAQs

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.

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.

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.

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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