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House Extension in city

House extension includes a variety of benefits which makes it simple to see why the extension could be a fantastic uptick in the prospective cost of your residential property in terms of sales. So if you're looking to build a new home extension but still not persuaded about the project, we're right here to help you. Being fully conscious any type of residence construction job is typically a heavy investment, there's a massive need to be set on your choice before setting up the start of any job. So are house extensions worth it? Below are a few of the leading advantages provided by house extensions to assist you choose if it's one of the most suitable path for you.

 

What's Involved in Including an Extension?

The actions will differ depending upon the range of your extension, however you can expect some, otherwise all, of the below to be included when adding an expansion to your residence:

 

  1. Obtaining Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if relevant) to make certain you can do what you want to do.
  3. Employing an architect  to prepare the plans, considering your expected usage ( kitchen area, bathroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance policy carrier to allow them recognize of the intended work ahead of it beginning.
  6. Getting parking allows if needed for your professionals to guarantee they have easy access to your home.
  7. Ensuring all prepared work drops within permitted allowables.
  8. Cleaning the space and excavating if required, including the elimination of trees.
  9. Building work can start.

 

What is the price of a house extension in city?

If you're considering including a 2 floor house extension, after that setting a budget for this task would certainly be a excellent method to get started. Comparable to a rear extension, a 2 storey extension generally leaves the rest of the building requiring some job and, as a result of its size, this might suggest the re-development of the entire house - which is why they can be extremely pricey. Several of the various other affecting factors that can have large effect on a two floor house extension price includes: your location, the size of the build, complexity of the layout (anything past the typical develop will generally require more experience as well as time), the glazing to be integrated (the much more the glass used in the job, the much more the product cost), as well as the group utilized.

Average House extensions cost in Greenwich

The regular cost of House extensions are £53,000 in Greenwich. Costs vary based upon the materials and the company picked. The upper price range can be as high as £75,600. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£32,400

Avg. price

Avg. price
£53,000

Avg. price high

Avg. price high
£75,600

£76100

£57075

£38050

£19025

£0

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

House extensions installation cost in Greenwich 2025

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

House extensions searches in June 2025

House extensions Projects in Greenwich in May 2025

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Requests for quotations in Greenwich in May 2025

0

Requests for House extensions quotations in Greenwich in May 2025. 0% change from April 2025.

1,000

Requests for House extensions quotations in London County in May 2025. 14% change from April 2025.

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

House extensions searches in cities and towns near Greenwich May 2025

Greenwich

The Royal Borough of Greenwich is a London borough in south-east London, England. Taking its name from the historic town of Greenwich, the London Borough of Greenwich was formed in 1965 by the amalgamation of the former area of the Metropolitan Borough of Greenwich with a part of the Metropolitan Borough of Woolwich towards the east. The local council is Greenwich London Borough Council which meets in Woolwich Town Hall. The council's offices are also primarily based in Woolwich, the main urban centre inside the borough. It covers an overall area of 18.28 square miles.

Based on population estimates during 2014, the borough features a permanent population of around 268678 people. The Prime Meridian running through Greenwich as well as the Greenwich Observatory is where the designation Greenwich Mean Time, or GMT began, and on which all world times are primarily based.

In 2012, Greenwich was listed as a top 10 international location by Frommer's, rendering it the only UK destination to be listed. It's also the home borough of professional football club Charlton Athletic. To mark the Diamond Jubilee of Elizabeth II, Greenwich became a Royal Borough on 3rd February 2012. This is partly a result of its historic links with the Royal Family, and to its UNESCO World Heritage Site status as home of the Prime Meridian.

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House extensions pros in Greenwich

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
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
5

House Extensions in London

Great consultation by Catalin Spent a lot of time with us understanding the project and various options.

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...

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 Greenwich

22 May

House Extensions

London - SE10

Enquiry from: Prayaag P

Start Date: Immediate

Homeowner Please contact to appoint

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29 Mar

House Extensions

London - SE10

Enquiry from: Jim L

Start Date: Immediate

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Terrace, Work description: Infill to rear return. Approx 1.5 metre. Sloping roof onto partition wall to 2.1 ...

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15 Nov

House Extensions

London - SE10

Enquiry from: Spiros A

Start Date: Immediate

Bathroom ceiling damaged by water. Looking to have approx 1m x 60cm section of plasterboard cut out and replaced.

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20 Sep

House Extensions

London - SE10

Enquiry from: Z

Start Date: 1 to 3 months

Hi There We are looking to extend our house in East Greenwich. Our aim is to turn the house from a 2-bed into a 3-bed by having a single storey extension. We have worked over with a surveyor and...

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18 Mar

House Extensions

London - SE10

Enquiry from: Zeynep A

Start Date: Immediate

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Terrace, Work description: I would like to get extend my kitchen area from the back side of the house toward...

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07 Jan

House Extensions

London - SE10

Enquiry from: Kristina G

Start Date: Immediate

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Terrace, Work description: Living room extension

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23 Sep

House Extensions

Wembley - HA9

Enquiry from: Mazher K

Start Date: Immediate

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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02 Sep

House Extensions

Richmond - TW9

Enquiry from: Hassan M

Start Date: Immediate

customer in richmond 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 dis...

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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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04 Oct

House Extensions

Wembley - HA9

Enquiry from: Kiat P

Start Date: Less than one month

supply & install shell of single-storey sip extension (approx. 3.3 m x 4.5 m) on former driveway, including shallow foundations (site is above public sewer). architectural drawings available on reques...

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31 Jul

House Extensions

Wembley - HA9

Enquiry from: Ejaz K

Start Date: Immediate

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

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17 Oct

House Extensions

Richmond - TW9

Enquiry from: Imad G

Start Date: Immediate

We are looking to extend the kitchen towards the rear garden with a width of 5m x 3m. Additionally we may want to extend to the side of the property, so an additional 6m x 3m but this depends on the p...

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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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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...

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27 Jul

House Extensions

Wembley - HA0

Enquiry from: Sohayb S

Start Date: Immediate

Looking for an estimate on an extension with glass roof and bifold doors to the rear. Size approx 5500x3000

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02 Jul

House Extensions

Wembley - HA0

Enquiry from: Sohayb S

Start Date: Immediate

Looking for an estimate on an extension with glass roof and bifold doors to the rear. Size approx 5500x3000

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25 Apr

House Extensions

Wembley - HA9

Enquiry from: Chineme N

Start Date: Immediate

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

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11 Mar

House Extensions

Surbiton - KT5

Enquiry from: Ray O

Start Date: Immediate

Drawing and council application

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10 Mar

House Extensions

Wembley - HA9

Enquiry from: Sesen G

Start Date: Immediate

Rear extension with light well and move of manhole

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06 Mar

House Extensions

Surbiton - KT5

Enquiry from: Ray O

Start Date: Immediate

Drawing and council application

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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.

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.
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.

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