House Extension in city

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House Extension in city

House extension includes a variety of benefits that makes it very easy to see why the extension could be a excellent uptick in the prospective price of your building in terms of sales. So if you're looking to develop a new residence extension but still not persuaded about the job, we're here to assist you. Being fully mindful any type of house building and construction job is typically a hefty financial investment, there's a significant requirement to be set on your choice prior to arranging the commencement of any type of work. So are house extensions worth it? Below are a few of the top benefits supplied by house extensions to help you choose if it's the most suitable route for you.

 

What's Involved in Including an Extension?

The steps will vary depending upon the range of your extension, but you can expect some, if not all, of the below to be entailed when including an extension to your residence:

 

  1. Obtaining Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Inspecting your leasehold contract (if suitable) to ensure you can do what you want to do.
  3. Getting an architect  to draw the plans, considering your expected usage (kitchen, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage service provider to allow them understand of the planned work ahead of it beginning.
  6. Getting car parking permits if required for your specialists to ensure they have very easy access to your house.
  7. Ensuring all intended work falls within allowed allowables.
  8. Cleaning the space as well as digging deep into if essential, consisting of the elimination of trees.
  9. Building job can begin.

 

What is the cost of a house extension in city?

If you're taking into consideration adding a 2 floor house extension, after that setting a allocate this task would certainly be a wonderful method to get going. Comparable to a rear extension, a two storey extension generally leaves the remainder of the structure needing some job and, because of its dimension, this might suggest the re-development of the whole house - which is why they can be very pricey. Some of the other affecting variables that can have large effect on a two floor house extension cost includes: your place, the size of the construct, complexity of the layout (anything beyond the typical build will generally call for even more know-how and time), the glazing to be included (the much more the glass used in the project, the much more the material price), in addition to the team used.

Average House extensions cost in London County

The regular cost of House extensions are £62,143 in London County. 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.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£34,572

Avg. price

Avg. price
£62,143

Avg. price high

Avg. price high
£91,143

£91700

£68775

£45850

£22925

£0

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

House extensions installation cost in London County 2026

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

House extensions searches in July 2026

House extensions Projects in London County in June 2026

307,195

Requests for quotations in London County in June 2026

1,000

Requests for House extensions quotations in London County in June 2026. 14% change from May 2026.

1,050

Requests for House extensions quotations in Greater London in June 2026. 14% change from May 2026.

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

House extensions searches in cities and towns near London County June 2026

720

Requests for quotations in London in June 2026

27

Requests for quotations in Westminster in June 2026

London County

The capital city of Great Britain has got the biggest metropolitan area in the UK having a populace exceeding eight million. London is situated all around the River Thames and contains several of the world's most famous landmarks including Big Ben, Buckingham Palace and the Houses of Parliament. The capital is easily the most visited city in the world, together with the biggest airport system calculated by passenger traffic. London is split into thirty two boroughs, including Bromley, Hackney, Croydon and the city of Westminster. London boasts a population density ten times greater than every other UK area, with 4,542 residents per square metre. With a mixture of era and modern day housing, make sure you develop your property with vetted trade professionals.

Looking for House extensions in London County?

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House extensions pros in London County

Jassi Builders Ltd

2 review(s)
Based: in Hayes, UB4 9YD

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...

Latest review

Julian F., HP2
25th February 2022
4

House Extensions in Hemel Hempstead

No quote received

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
3rd August 2024
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
7th August 2016
5

House Extensions in Rochester

I haven't had the extension built yet but am planning to use them

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
30th October 2015
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
4th October 2016
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
10th March 2016
5

House Extensions in Esher

excellent communication

LW Building Service

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

Latest review

Rosa S., SE20
10th October 2015
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
10th October 2015
5

House Extensions in London

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

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House extensions Lead

are you the property owner: owner of the property property type: terrace looking for: single storey extension do you have planning permission: no do you have plans drawn up: yes do you require plumbi...

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are you the property owner: owner of the property property type: terrace looking for: single storey extension do you have planning permission: no do you have plans drawn up: no do you require plumbin...

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Ruislip - HA4

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customer made an enquiry for house extension and confirmed on the local quotes site they would like quotes from a builder.mr lives in the ruislip area and would like a call to discuss options.see belo...

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London - NW9

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London - SE26

Enquiry from: Jennifer K

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London - SE13

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London - N11

Enquiry from: Navin H

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ground floor extension to an end terrace house 6m wide by 5m deep with a pitch roof and 2 sky panels

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FAQs

how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

Will my extension be expensive?

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.

Should I use concrete or timber footings?

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.

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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London County House extensions installers are rated 4.2 out of 5 based on 29 reviews of 219 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 London County House extensions contractors

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