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House extension comes with a wide variety of benefits that makes it very easy to see why the extension could be a terrific uptick in the prospective price of your building in terms of sales. So if you're aiming to construct a brand-new residence extension however still not persuaded about the project, we're below to aid you. Being fully mindful any kind of home building and construction job is generally a hefty investment, there's a significant demand to be set on your decision before scheduling the commencement of any type of job. So are house extensions worth it? Below are some of the top advantages supplied by house extensions to aid you determine if it's one of the most suitable course for you.

 

What's Associated with Including an Extension?

The steps will differ depending on the range of your extension, yet you can anticipate some, if not all, of the below to be entailed when including an extension to your residence:

 

  1. Getting Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Checking your leasehold arrangement (if relevant) to make sure you can do what you intend to do.
  3. Hiring 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 carrier to allow them understand of the prepared job ahead of it beginning.
  6. Obtaining car park allows if needed for your contractors to guarantee they have easy access to your building.
  7. Seeing to it all prepared job falls within allowed allowables.
  8. Clearing up the area and excavating if required, consisting of the removal of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're taking into consideration including a 2 floor house extension, then establishing a allocate this task would be a terrific way to get started. Comparable to a back extension, a 2 floor extension usually leaves the remainder of the structure requiring some job as well as, due to its size, this might indicate the re-development of the entire house - which is why they can be extremely expensive. Some of the other affecting factors that can have huge effect on a 2 floor house extension cost includes: your place, the dimension of the build, intricacy of the style (anything past the typical construct will usually require more proficiency as well as time), the glazing to be included (the more the glass made use of in the project, the a lot more the product cost), along with the team made use of.

Average House extensions cost in Wandsworth

The regular cost of House extensions are £62,143 in Wandsworth. 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 Wandsworth, as reported by local LeadsDoWork members.

House extensions installation cost in Wandsworth 2026

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

House extensions searches in June 2026

House extensions Projects in Wandsworth in May 2026

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Requests for quotations in Wandsworth in May 2026

0

Requests for House extensions quotations in Wandsworth in May 2026. 0% change from April 2026.

1,000

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

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

House extensions searches in cities and towns near Wandsworth May 2026

Wandsworth

The London Borough of Wandsworth is a London borough in England, and forms part of Inner London. The borough borders the London Borough of Lambeth towards the east, the London Borough of Merton along with the Royal Borough of Kingston Upon Thames towards the south, the London Borough of Richmond upon Thames towards the west and to the north, across the River Thames, three boroughs, namely the London Borough of Hammersmith and Fulham, Royal Borough of Kensington and Chelsea and the City of Westminster.

The local authority is Wandsworth London Borough Council. As outlined by population estimates created during 2014, the borough has a permanent population of around 312145 inhabitants. You will find several new or refurbished buildings along the borough's prosperous riverside like the large Chelsea Bridge Wharf.

The Peace Pagoda, one of several such international Pagodas is in Battersea Park, a sprawling rectangle frequently hosting circuses beside the Thames. The London Heliport, London's major and busiest heliport is just beyond Battersea Park and south of this is New Covent Garden Market. In Old Battersea two masonry mansions survived The Blitz, Old Battersea House and Downshire House, both of which hold the uncommon Grade II* status.

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House extensions pros in Wandsworth

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...

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 Wandsworth

16 Oct

House Extensions

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

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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

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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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15 Dec

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London - SW19

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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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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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16 Dec

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London - SW19

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6x5.5m kitchen extension using sip

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08 Dec

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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

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London - SW6

Enquiry from: Amanda O

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

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25 Aug

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London - SW18

Enquiry from: Len D

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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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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

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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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17 May

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London - SW19

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Customer made enquiry for House Extension quotes online. Confirmed via SMS at 07:19 Homeowner lives in London area. Please call to arrange appointment

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21 Apr

House Extensions

London - SW17

Enquiry from: Daniel N

Start Date: 1 to 3 months

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 21/04/2021 14:04.please call to arrange ...

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19 Mar

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London - SW16

Enquiry from: Mr R

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i have a three bedroom mid terrace house and i wish to rent or let the upstairs which is one bedroom .frontroom .kitchen.bathroom and i want to make plqnning permission

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17 Mar

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London - SW16

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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 telephone, sms and email at 17/03/2021 14:25.please call ...

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London - SW16

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i want to let or rent upstairs which is a one bedroom .kitchen .bathroom front room. and i will be living downstairs there is only one boiler and electricity for the whole house i would like a quote f...

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15 Oct

House Extensions

London - SW19

Enquiry from: Nim T

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are you the home owner of that property? yes are you replacing an existing porch or is this a new build? new build what material do you require, upvc? upvc what colour do you want it to be? unsure i a...

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28 Apr

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London - SW6

Enquiry from: Shuhui L

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25 Feb

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London - SW19

Enquiry from: Eduardo R

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Are you the property owner: Owner Have you considered getting your windows replaced to match a new conservatory: Yes How many windows are you looking for: 3 Windows Other Forms: House Extension Agreed...

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FAQs

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.
when do you need planning permission for a house extension?

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.

Can I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

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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