House Extension in city

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House Extension in city

House extension comes with a vast array of benefits that makes it easy to see why the extension could be a fantastic uptick in the prospective price of your residential property in regards to sales. So if you're aiming to construct a brand-new house extension but still not encouraged regarding the job, we're here to assist you. Being totally aware any type of house building and construction job is typically a hefty investment, there's a significant demand to be set on your decision before arranging the commencement of any work. So are house extensions worth it? Below are a few of the leading benefits provided by house extensions to aid you make a decision if it's one of the most suitable course for you.

 

What's Associated with Including an Extension?

The actions will differ depending upon the range of your extension, however you can expect some, if not all, of the below to be entailed when including 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 contract (if relevant) to ensure you can do what you want to do.
  3. Enlisting an architect  to prepare the plans, considering your planned usage ( cooking area, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage provider to let them know of the prepared work ahead of it starting.
  6. Obtaining parking allows if needed for your contractors to guarantee they have easy accessibility to your residential property.
  7. Making sure all planned work falls within allowed allowables.
  8. Clearing up the area as well as digging deep into if required, including the elimination of trees.
  9. Structure job can start.

 

What is the price of a house extension in city?

If you're considering including a 2 floor house extension, after that establishing a allocate this task would certainly be a fantastic way to start. Similar to a back extension, a 2 floor extension generally leaves the rest of the structure needing some work as well as, as a result of its dimension, this may indicate the re-development of the entire house - which is why they can be really pricey. Several of the various other influencing factors that can have large effect on a two floor house extension price includes: your place, the dimension of the construct, intricacy of the design (anything beyond the conventional construct will normally require even more experience as well as time), the glazing to be integrated (the much more the glass utilized in the job, the much more the material price), along with the team used.

Average House extensions cost in Westminster

The regular cost of House extensions are £65,000 in Westminster. Costs vary based upon the materials and the company picked. The upper price range can be as high as £96,334. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£35,334

Avg. price

Avg. price
£65,000

Avg. price high

Avg. price high
£96,334

£96900

£72675

£48450

£24225

£0

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

House extensions installation cost in Westminster 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 Westminster in March 2025

8,212

Requests for quotations in Westminster in March 2025

27

Requests for House extensions quotations in Westminster in March 2025. 13% change from February 2025.

1,000

Requests for House extensions quotations in London County in March 2025. 14% change from February 2025.

We noted 8,212 requests for home quotes in Westminster. Of these quotation requests the amount of house extensions quotes in Westminster was 27. Quotatis would have been able to match these consumers with as many as 4 suitable fitters who were available for work in Westminster at that time. Ask for a free home survey from trustworthy companies within Westminster.

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

House extensions searches in cities and towns near Westminster March 2025

27

Requests for quotations in Westminster in March 2025

Westminster

The city of Westminster has got one of the highest populace densities in the UK, spanning lots of Central London. Contained in its boundaries are a few of London's finest tourist attractions, including Buckingham Palace, the London Eye, Downing Street and the Houses of Parliament.

Westminster was only officially developed in 1965, nonetheless its history stretches back to the Norman Conquest, with a lot of Victorian and Georgian buildings still making up large areas of the city.

Looking for House extensions in Westminster?

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House extensions pros in Westminster

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.

Blue SKY Developers Limited

1 review(s)
Based: in London, NW3 6DX

Blue Sky Developers is a registered company in the UK that specialises in all building services you could require. We are based in North London but carry work out all around London.

Latest review

Vikram D., NW7
4

House Extensions in Mill Hill

Very straight and helpful. Provided useful advice and suggestions.

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...

Tectra Partnership Ltd

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

Latest review

Deepak S., KT10
5

House Extensions in Esher

excellent communication

LW Building Service

2 review(s)
Based: in London, SE20 8AG

Latest review

Rosa S., SE20
3

House Extensions in London

I have not yet finalised quotation

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 Westminster

15 Apr

House Extensions

London - SW19

Enquiry from: Intisar C

Start Date: Immediate

customer in london 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 15/04/2025 17:16.please call to arrange ...

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09 Apr

House Extensions

London - SW16

Enquiry from: Andrea C

Start Date: Immediate

Customer is looking for House Extension quotes. They are unsure of options so would like to discuss. Confirmed interest via SMS/ Customer lives in London area Please call to arrange an appointment

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09 Jan

House Extensions

London - NW2

Enquiry from: Naciye H

Start Date: Immediate

Customer made an enquiry for House Extension via one of our websites. Looking at various options they would like to discuss directly Confirmed interest Please call to discuss and arrange appointment t...

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15 Dec

House Extensions

London - SW19

Enquiry from: Alex P

Start Date: Less than one month

House extensions Lead House extensions Lead

mr requested quotes for house extension from a builder around london. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is w...

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09 Nov

House Extensions

London - NW7

Enquiry from: JOHN G

Start Date: Immediate

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

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21 Jul

House Extensions

London - SW5

Enquiry from: Arnab D

Start Date: Immediate

customer in london areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms at 21/07/2023 22:07.please call to arrange appointmen...

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27 Apr

House Extensions

London - W13

Enquiry from: Sean S

Start Date: Immediate

wrap around extension and bathroom are you the property owner: owner of the property looking for: single storey extension do you have planning permission: yes do you have plans drawn up: yes do you re...

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24 Apr

House Extensions

London - NW7

Enquiry from: Monsur M

Start Date: Immediate

single story side and rear extension are you the property owner: owner of the property looking for: single storey extension do you have planning permission: yes do you have plans drawn up: yes do you ...

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16 Mar

House Extensions

London - SW11

Enquiry from: Will E

Start Date: Immediate

Extend out back, make kitchen/living space with bifold doors onto garden. Extend on top of this and add a bathroom. Please would you mind giving me a quick call tomorrow to discuss?

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21 Feb

House Extensions

London - SW11

Enquiry from: Will E

Start Date: Immediate

Extend out back, make kitchen/living space with bifold doors onto garden. Extend on top of this and add a bathroom. Please would you mind giving me a quick call tomorrow to discuss?

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04 Feb

House Extensions

London - NW2

Enquiry from: Alex G

Start Date: Immediate

Full extension bulld and I would like to do loft conversation and side back extension

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20 Jan

House Extensions

London - NW9

Enquiry from: Ruta M

Start Date: Immediate

customer made an enquiry for house extension and confirmed on the quotatis site they would like quotes from a builder.mrs lives in the london area and would like a call to discuss options.see below de...

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16 Dec

House Extensions

London - SW19

Enquiry from: Grace C

Start Date: Immediate

6x5.5m kitchen extension using sip

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08 Dec

House Extensions

London - SW1V

Enquiry from: Sia M

Start Date: Immediate

customer in london areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via email at 08/12/2021 02:59.please call to arrange appointm...

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05 Sep

House Extensions

London - SW6

Enquiry from: Amanda O

Start Date: Immediate

Glass extension across back of property into garden, approx 2.5 metres out

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25 Aug

House Extensions

London - SW18

Enquiry from: Len D

Start Date: Immediate

a lean to extension 3000mmx 6 000m i have the plans drawn up customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner:...

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23 Aug

House Extensions

London - W7

Enquiry from: Eden A

Start Date: Immediate

already have extension room but want to join the kitchen together. are you the property owner: owner of the property do you have planning permission: no property type: terrace do you require plumbing ...

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16 Aug

House Extensions

London - SW12

Enquiry from: Lucy P

Start Date: Immediate

rear extension, 3.12 depth x 3.69 width, velux windows, bi-fold doors customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the proper...

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06 Aug

House Extensions

London - SW8

Enquiry from: Pep S

Start Date: Immediate

add a whole new floor on an exiting floor plate. currently 3 storeys. would like to add one more storey. customer is currently in the process of looking for quotes to add a single storey extension to...

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29 Jul

House Extensions

London - W7

Enquiry from: Eden A

Start Date: Immediate

already have extension room but want to join the kitchen together. are you the property owner: owner of the property do you have planning permission: yes property type: terrace do you require plumbing...

Post a similar request >

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FAQs

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.

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.

Do I need my neighbours’ permission for an extension?

Well the reality is, sometimes, neighbours just don’t get along. With several individuals living in close proximity, it’s little surprise they tend to get on one another’s nerves from time to time. However, there’s a difference between having a tiff and being able to transform your house the way you want without having to obtain your neighbour’s approval.

The short and simple answer to this question is, not necessarily. However, you must first educate yourself by thinking about your extension and how it affects the houses around you. We’d strongly recommend you talk proposals through with your neighbour so as to avoid possible conflicts later. There are a number of reasons why your neighbour can protest to your new home extension plans. Let’s take a look!

 

  • In the event whereby your new extension is blocking their view or providing an unwanted shade on their property. Here, they have a legitimate reason to protest as no one would want their once sunny garden suddenly covered or plummet into shade.
  • In the event where it leads to a loss of privacy. For instance, if your new extension possesses a window which overlooks the neighbour’s property in any way. This is likely to be taken as an invasion of privacy and that has a little to no chance of being a welcomed idea.
  • If it’s a major project and going to take a lot of weeks before completion. The noise generated, especially when your neighbours are enjoying your summer holidays or weekends, can make their gardens not as relaxing as it used to be.
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.

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Overall rating:


Westminster House extensions installers are rated 4.5 out of 5 based on 18 reviews of 203 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Westminster House extensions contractors

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