House Extension in city

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House Extension in city

House extension comes with a vast array of advantages that makes it very easy to see why the extension could be a fantastic uptick in the prospective price of your home in regards to sales. So if you're seeking to build a new home extension but still not encouraged about the task, we're right here to help you. Being fully aware any kind of residence construction work is normally a heavy financial investment, there's a significant need to be set on your decision before setting up the beginning of any type of job. So are house extensions worth it? Below are a few of the top advantages provided by house extensions to assist you make a decision if it's the most suitable course for you.

 

What's Involved in Adding an Extension?

The actions will differ depending on the extent of your extension, but you can expect some, if not all, of the listed below to be involved when including an expansion to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if suitable) to make sure you can do what you want to do.
  3. Employing an architect  to create the plans, considering your expected usage ( cooking area, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage supplier to allow them understand of the planned job ahead of it beginning.
  6. Getting parking allows if required for your professionals to guarantee they have very easy accessibility to your house.
  7. Making sure all planned job drops within allowed allowables.
  8. Cleaning the space and excavating if necessary, consisting of the elimination of trees.
  9. Structure job can begin.

 

What is the cost of a house extension in city?

If you're considering including a 2 storey house extension, then establishing a allocate this task would be a excellent means to begin. Similar to a back extension, a two floor extension typically leaves the remainder of the building needing some work as well as, as a result of its size, this might indicate the re-development of the whole house - which is why they can be extremely expensive. Several of the various other affecting aspects that can have big effect on a two storey house extension expense includes: your place, the dimension of the construct, intricacy of the style (anything past the standard develop will generally need even more proficiency and time), the glazing to be integrated (the a lot more the glass made use of in the project, the much more the product expense), as well as the group used.

Average House extensions cost in Middlesex

The regular cost of House extensions are £51,667 in Middlesex. Costs vary based upon the materials and the company picked. The upper price range can be as high as £73,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£32,000

Avg. price

Avg. price
£51,667

Avg. price high

Avg. price high
£73,000

£73500

£55125

£36750

£18375

£0

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

House extensions installation cost in Middlesex 2026

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

House extensions searches in September 2026

House extensions Projects in Middlesex in August 2026

10,922

Requests for quotations in Middlesex in August 2026

50

Requests for House extensions quotations in Middlesex in August 2026. 25% change from July 2026.

1,050

Requests for House extensions quotations in Greater London in August 2026. 14% change from July 2026.

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

House extensions searches in cities and towns near Middlesex August 2026

55

Requests for quotations in Enfield in August 2026

42

Requests for quotations in Harrow in August 2026

20

Requests for quotations in Wembley in August 2026

11

Requests for quotations in Southall in August 2026

10

Requests for quotations in Ashford in August 2026

Middlesex

Middlesex can be found on the outskirts of Greater London and is amongst England's 39 traditional counties. It's the second smallest by area but still features a population more than two million. Even with a decrease in population right after the Second World War, regeneration assisted the area become great once more for the duration of the 1960s. Consequently, there is lots of houses post World War Two, all requiring upgrading to keep value and aesthetic appeal in the Middlesex County. For any property improvements you're thinking about, only use vetted specialists in your region to ensure high quality.

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House extensions pros in Middlesex

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.

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

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

Similar Customer Enquiries for House extensions in Middlesex

16 Jul

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Southall - UB1

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I need a extension planing, design and build

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Customer made an online enquiry for House Extension via one of our websites. Confirmed via . Please call to arrange an appointment to quote.

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

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24 Oct

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09 Oct

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Ruislip - HA4

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Start Date: 1 to 3 months

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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12 May

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customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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11 Apr

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Feltham - TW13

Enquiry from: Nijat M

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

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23 Feb

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Feltham - TW13

Enquiry from: Sandesh R

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Customer made an enquiry for House Extension via one of our websites. Looking at various options they would like to discuss directly Confirmed interest, SMS at 15:17, email at 15:17 Please call to dis...

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23 Jan

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Flat roof kitchen extension at rear. Labour only builder required. All my material

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19 Nov

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Hounslow - TW3

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Customer made an online enquiry for House Extension via one of our websites. Confirmed via . Please call to arrange an appointment to quote.

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14 Oct

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Pinner - HA5

Enquiry from: Farhana C

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Customer made an enquiry for House Extension via one of our websites. Looking at various options they would like to discuss directly Confirmed interest via phone at 16:26 Please call to discuss and a...

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23 Sep

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Wembley - HA9

Enquiry from: Mazher K

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what type of job are you looking to have done: house extension property type: semi detached have you got a rough idea of the design you would like: some ideas how many bedrooms are you looking to have...

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11 Aug

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Harrow - HA2

Enquiry from: Archit J

Start Date: Immediate

Rear extension squaring off. We have half of the width of the house already extended to the rear. Now want to square it off by extending the remaining ~4 meter width to similar 6 meter depth. So area ...

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10 Aug

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West Drayton - UB7

Enquiry from: Mike T

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customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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13 Jun

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customer in the hayes area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the prop...

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Hampton - TW12

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Hi I have extension work in rear, and loft to start with have planning permission for the work.

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10 Sep

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Hampton - TW12

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Hi I have extension work in rear, and loft to start with have planning permission for the work.

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07 Mar

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Uxbridge - UB8

Enquiry from: Anupama N

Start Date: Immediate

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

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05 Mar

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Uxbridge - UB10

Enquiry from: Praful K

Start Date: 1 to 3 months

customer in uxbridge area made an enquiry for house extension online. confirmed via sms at 09:47 please call to arrange an appointment to discuss options are you the property owner: owner of the prop...

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FAQs

how much does a two storey house extension cost?

If you’re considering adding a two storey house extension, then setting a budget for this project would be a great way to get started. Similar to a rear extension, a two storey extension usually leaves the rest of the building needing some work and, due to its size, this may imply the re-development of the entire house - which is why they can be very costly. Some of the other influencing factors that can have big impact on a two storey house extension cost includes: your location, the size of the build, complexity of the design ( anything beyond the standard build will normally require more expertise and time), the glazing to be incorporated ( the more the glass used in the project, the more the material cost), as well as the team used.

Generally, when it comes to extensions, the major part of the expenses will be made on the build of the project. This is because it doesn’t only cover the material cost but also the contractor’s overhead as well as the daily rates. At this stage, the extension prices can be determined by the standard of the work that’s being done.

For a fairly average room size of about 18 square metre, the two storey extension should cost within the range of £2,500 to £3,000 per square metre - with the range being determined by the finishes incorporated. Therefore, a two storey extension of about 18 square metre should cost within the range of £45,000 to £55,000. However, this is with the assumption that there are standard window sizes, bathroom suits are modest, and without any need for any purpose joinery or glazing. If you wish to include all these extra features you’ll also have to pay more to make the total cost between £70,000 to £80,000.

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.
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.

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.

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Middlesex House extensions installers are rated 4.3 out of 5 based on 19 reviews of 150 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 Middlesex House extensions contractors

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