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House Extension in city

House extension features a wide variety of advantages that makes it easy to see why the extension could be a wonderful uptick in the prospective cost of your home in regards to sales. So if you're aiming to develop a brand-new home extension yet still not encouraged concerning the job, we're here to help you. Being totally mindful any type of home building job is typically a heavy financial investment, there's a substantial need to be set on your choice before scheduling the commencement of any job. So are house extensions worth it? Below are some of the leading advantages offered by house extensions to help you determine if it's the most suitable route for you.

 

What's Involved in Building an Extension?

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

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if applicable) to see to it you can do what you wish to do.
  3. Hiring an architect  to draw the plans, considering your planned use ( kitchen area, shower room, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance carrier to allow them recognize of the planned work ahead of it starting.
  6. Getting vehicle parking allows if required for your contractors to guarantee they have easy accessibility to your house.
  7. Making certain all planned job drops within allowed allowables.
  8. Clearing up the space and digging deep into if essential, consisting of the removal of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're taking into consideration adding a 2 floor house extension, then establishing a budget for this task would certainly be a terrific means to begin. Similar to a back extension, a 2 storey extension usually leaves the remainder of the building requiring some work as well as, as a result of its dimension, this might indicate the re-development of the entire house - which is why they can be really costly. Several of the various other influencing aspects that can have big impact on a 2 floor house extension cost includes: your area, the size of the build, complexity of the style (anything beyond the basic develop will usually need more experience as well as time), the glazing to be incorporated (the extra the glass used in the job, the more the product price), in addition to the group utilized.

Average House extensions cost in Windsor

The regular cost of House extensions are £46,667 in Windsor. Costs vary based upon the materials and the company picked. The upper price range can be as high as £66,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£30,667

Avg. price

Avg. price
£46,667

Avg. price high

Avg. price high
£66,000

£66500

£49875

£33250

£16625

£0

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

House extensions installation cost in Windsor 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 Windsor in March 2025

1,018

Requests for quotations in Windsor in March 2025

10

Requests for House extensions quotations in Windsor in March 2025. 0% change from February 2025.

110

Requests for House extensions quotations in Berkshire in March 2025. 10% change from February 2025.

We noted 1,018 requests for property or home quotations in Windsor. Of these quotation requests the amount of house extensions quotes in Windsor was 10. Quotatis would have been in a position to match these customers with as many as 4 suitable contractors who were available for work in Windsor at that time. Request a free home survey from reputable companies within Windsor.

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

House extensions searches in cities and towns near Windsor March 2025

10

Requests for quotations in Slough in March 2025

10

Requests for quotations in Maidenhead in March 2025

10

Requests for quotations in Windsor in March 2025

2

Requests for quotations in Ascot in March 2025

2

Requests for quotations in Marlow in March 2025

Windsor

Windsor is actually a town and unparished region in the Royal Borough of Windsor and Maidenhead in Berkshire, England. It is well-known as being the site of Windsor Castle, one of several official properties of the British Royal Family.

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House extensions pros in Windsor

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.

Tectra Partnership Ltd

1 review(s)
Based: in Slough, SL3 0JE

Latest review

Deepak S., KT10
5

House Extensions in Esher

excellent communication

JPA Building Construction LTD

1 review(s)
Based: in Twickenham , TW1 1AG

Latest review

Rosa S., SE20
5

House Extensions in London

Very nice and helpful unfortunately I am looking for a builder who lives nearby my property

Similar Customer Enquiries for House extensions in Windsor

17 Oct

House Extensions

Windsor - SL4

Enquiry from: Hassib M

Start Date: Immediate

homeowner house extension please contact to appoint

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04 Jun

House Extensions

Windsor - SL4

Enquiry from: Donna J

Start Date: Immediate

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 Jun

House Extensions

Windsor - SL4

Enquiry from: Donna J

Start Date: Immediate

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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26 Jul

House Extensions

Windsor - SL4

Enquiry from: Alix S

Start Date: Immediate

front porch (open) to be built over the front door. are you the property owner: owner of the property do you have planning permission: no what material are you looking for: wood what material would yo...

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21 Jul

House Extensions

Windsor - SL4

Enquiry from: Eddie L

Start Date: Immediate

hi, we are looking for an outside porch roof, with a low level wall, 2 pillars, an extended step and new contemporary front door fitted. would you be able to come round and give me a quote please? ema...

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09 Aug

House Extensions

Windsor - SL4

Enquiry from: Neil C

Start Date: Immediate

Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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13 Jul

House Extensions

Windsor - SL4

Enquiry from: Sarah G

Start Date: Less than one month

Are you the property owner: Owner of the property Property Type: Semi detached Other Forms: 45 Agreed to recieve quotes for selected products: Yes Please call to appoint

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11 Apr

House Extensions

Windsor - SL4

Enquiry from: Vanda M

Start Date: Immediate

Property Type: Semi Detached Have you got a rough idea of the design you would like: Yes How many bedrooms are you looking to have: 1-2 Bedrooms How many storeys are you looking for the property to h...

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06 Sep

House Extensions

Windsor - SL4

Enquiry from: Narinder S

Start Date: Immediate

single storey extension 3x8.5 under permitted development semi detached house

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04 Sep

House Extensions

Windsor - SL4

Enquiry from: Narinder S

Start Date: Immediate

single storey extension 3x8.5 under permitted development semi detached house

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29 Aug

House Extensions

Windsor - SL4

Enquiry from: Narinder S

Start Date: Immediate

single storey extension 3x8.5 under permitted development semi detached house

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22 Aug

House Extensions

Windsor - SL4

Enquiry from: Ross C

Start Date: Immediate

Construction of rear extension shell (4mx8m) to include groundwork, block and beam floor, brickwork and roof timber construction (not including roof covering)

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15 Mar

House Extensions

Windsor - SL4

Enquiry from: Neal M

Start Date: Immediate

Property Type: Terraced Have you got a rough idea of the design you would like: Some Ideas How many bedrooms are you looking to have: 3-4 Bedrooms How many storeys are you looking for the property to...

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13 Mar

House Extensions

Windsor - SL4

Enquiry from: Oxana R

Start Date: Immediate

Property Type: Detached House Have you got a rough idea of the design you would like: Yes How many bedrooms are you looking to have: 3-4 Bedrooms How many storeys are you looking for the property to ...

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09 Oct

House Extensions

Windsor - SL4

Enquiry from: L

Start Date: Immediate

To add a single storey extension or approx 3.5 metres by 3 metres

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13 Jul

House Extensions

Windsor - SL4

Enquiry from: Patsy C

Start Date: Immediate

I need an internal wall taken down to create a space between the kitchen and lounge. The space will then be filled with bi folding doors. In addition a quote for a single storey extension is also req...

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05 Jul

House Extensions

Windsor - SL4

Enquiry from: Martin G

Start Date: Immediate

Double side extention porch and 4 metres out back Property Type: Terrace Time scale: Immediate Are you the property owner: Owner of the property Looking For: Double storey extension Do you have planni...

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22 Jun

House Extensions

Windsor - SL4

Enquiry from: Mrs J

Start Date: Immediate

Double storey wrap around extension, new stair case, kitchen and 2 bathrooms

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16 Jan

House Extensions

Windsor - SL4

Enquiry from: Anita P

Start Date: Immediate

Home owner Side and rear extension - Create more living space/Utility Roof Assist with plans and planning permission Please contact to Appoint *

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07 Jan

House Extensions

Windsor - SL4

Enquiry from: Mr J

Start Date: Immediate

14ft x 24ft single storey extension on back of bungalow

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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.

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.

how much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

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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