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:
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.
The regular cost of House extensions are £62,143 in Westminster. Costs vary based upon the materials and the company picked. The upper price range can be as high as £91,143. The material costs are in most cases around£10,500.
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£91700
£68775
£45850
£22925
£0
| Labour cost | £27,000 | |
| Material cost | £10,500 | |
| Waste removal | £2,500 |
Requests for quotations in Westminster in August 2026
Requests for House extensions quotations in Westminster in August 2026. 13% change from July 2026.
Requests for House extensions quotations in London County in August 2026. 14% change from July 2026.
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 enginesRequests for quotations in Westminster in August 2026
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.
Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I have completed all my work on perfect time and leave customers in complete satisfaction. We do all types of loft conversions, exten...
No quote received
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...
Great consultation by Catalin Spent a lot of time with us understanding the project and various options.
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.
Very straight and helpful. Provided useful advice and suggestions.
From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.
Absolutely pleasant appointment. Very patient and polite, listened carefully to detail and more of my background and his...
excellent communication
I have not yet finalised quotation
Very nice and helpful unfortunately I am looking for a builder who lives nearby my property
London - SW6
Enquiry from: Victor I
Start Date: Immediate
Customer made enquiry for House Extension quotes online. Confirmed interest via phone at 20:30 Homeowner lives in London area. Please call to arrange appointment
London - NW9
Enquiry from: Ekrem M
Start Date: Immediate
Customer is looking for quotes for House Extension from pros around London. Please call to arrange appointment to discuss
London - NW6
Enquiry from: Noam G
Start Date: Immediate
hi, i'm in the process of buying a house, which needs a fair bit of work. this would include converting an attached garage into a bedroom, knocking down a couple of walls, doing a small extension int...
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 ...
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
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...
London - SW19
Enquiry from: Alex P
Start Date: Less than one month
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...
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...
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...
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...
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 ...
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?
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?
London - NW2
Enquiry from: Alex G
Start Date: Immediate
Full extension bulld and I would like to do loft conversation and side back extension
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...
London - SW19
Enquiry from: Grace C
Start Date: Immediate
6x5.5m kitchen extension using sip
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...
London - SW6
Enquiry from: Amanda O
Start Date: Immediate
Glass extension across back of property into garden, approx 2.5 metres out
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:...
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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Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.
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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.
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.
For 2 metre solid fences it’s recommended to use concrete posts to support each panel. For smaller 1 metre fences or for picket fences with gaps between each timber piece you can use timber posts. A fencing contractor will be able to advise you on the best materials from the length and requirements of a new fence.
It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.
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