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House Extension in city

House extension includes a variety of benefits that makes it simple to see why the extension could be a great uptick in the possible rate of your building in regards to sales. So if you're seeking to build a brand-new residence extension yet still not persuaded concerning the job, we're below to aid you. Being fully aware any type of residence building and construction job is usually a hefty financial investment, there's a big requirement to be set on your decision before setting up the start of any type of work. 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 appropriate route for you.

 

What's Involved in Building an Extension?

The steps will differ depending upon the extent of your extension, however you can anticipate some, otherwise all, of the 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. Inspecting your leasehold arrangement (if appropriate) to make certain you can do what you intend to do.
  3. Employing an architect  to draw up the plans, considering your intended usage ( cooking area, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage service provider to allow them know of the intended job ahead of it starting.
  6. Acquiring car parking allows if required for your specialists to guarantee they have simple accessibility to your home.
  7. Seeing to it all prepared work falls within permitted allowables.
  8. Cleaning the area as well as excavating if necessary, consisting of the elimination of trees.
  9. Building work can begin.

 

What is the price of a house extension in city?

If you're thinking about including a two floor house extension, after that establishing a allocate this job would certainly be a excellent method to get going. Comparable to a rear extension, a two floor extension typically leaves the remainder of the building requiring some job as well as, as a result of its dimension, this might imply the re-development of the whole house - which is why they can be extremely expensive. Some of the other influencing factors that can have large impact on a 2 floor house extension cost consists of: your place, the size of the construct, intricacy of the design (anything beyond the basic construct will normally require even more expertise as well as time), the glazing to be integrated (the extra the glass utilized in the job, the extra the material cost), in addition to the group used.

Average House extensions cost in Southwark

The regular cost of House extensions are £53,000 in Southwark. 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 Southwark, as reported by local LeadsDoWork members.

House extensions installation cost in Southwark 2025

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

House extensions searches in February 2025

House extensions Projects in Southwark in January 2025

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Requests for quotations in Southwark in January 2025

0

Requests for House extensions quotations in Southwark in January 2025. 0% change from December 2024.

1,000

Requests for House extensions quotations in London County in January 2025. 14% change from December 2024.

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

House extensions searches in cities and towns near Southwark January 2025

Southwark

The London Borough of Southwark in south London, England forms a part of Inner London and is connected by bridges across the River Thames towards the City of London. It was established in 1965 when three smaller council locations amalgamated under the London Government Act 1963. This incorporated the former area of the Metropolitan Borough of Southwark, the Metropolitan Borough of Camberwell, and the Metropolitan Borough of Bermondsey. All districts of the area are within the London postal district.

It borders the City of London and the London Borough of Tower Hamlets to the north, with the River Thames forming the boundary, the London Borough of Lambeth to the west plus the London Borough of Lewisham to the east. To the south are the London Boroughs of Bromley and Croydon. In line with population estimates created part way through 2014, Southwark has a permanent population of around 302538 people.

The borough is residence to numerous cultural, historical and notable attractions. The Shard, Tate Modern, Shakespeare's Globe Theatre, and Borough Market which are the biggest of the venues in Southwark to draw domestic and international tourism. Dulwich hosts the Dulwich Picture Gallery and also the Imperial War Museum in Elephant and Castle.

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House extensions pros in Southwark

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...

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 Southwark

21 Oct

House Extensions

London - SE26

Enquiry from: Ga R

Start Date: Immediate

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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25 Aug

House Extensions

London - SE4

Enquiry from: Jayne E

Start Date: Immediate

kitchen extension expanding existing one

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03 Jun

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London - SE21

Enquiry from: Patricia Z

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Loft conversion ( bedroom and bathroom) Stairs

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11 May

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London - SE4

Enquiry from: Jessica W

Start Date: Immediate

L dormer or Mason loft extension

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12 Apr

House Extensions

London - SE22

Enquiry from: Nichola S

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Side return and internal Reconfiguration of ground fooor

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26 Sep

House Extensions

London - SE16

Enquiry from: Evelyn L

Start Date: Immediate

customer in the london 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 pro...

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20 May

House Extensions

London - SE15

Enquiry from: Madeline 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 and email at 20/05/2023 07:06.please call to arrange ...

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04 Mar

House Extensions

London - SE15

Enquiry from: Sheila S

Start Date: Immediate

customer in the london 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 pro...

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25 Feb

House Extensions

London - SE22

Enquiry from: Guy G

Start Date: Immediate

Looking to demolish existing return of the house and replace with sips structure across three floors with the top floor forming part of a loft conversion and replacing the existing roof struture

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25 Nov

House Extensions

London - SE24

Enquiry from: Robert W

Start Date: Immediate

1 bed ground floor extension are you the property owner: owner of the property looking for: single storey extension property type: semi detached do you have planning permission: yes do you have plans ...

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03 Nov

House Extensions

London - SE24

Enquiry from: Robert W

Start Date: Immediate

1 bed ground floor extension are you the property owner: owner of the property looking for: single storey extension property type: semi detached do you have planning permission: yes do you have plans ...

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16 Aug

House Extensions

London - SE19

Enquiry from: Luke B

Start Date: Less than one month

hi, i'm looking for a quote for a rear kitchen extension to my 3 bedroom house. customer is currently in the process of looking for quotes to add a single storey extension to their property. are you ...

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04 Aug

House Extensions

London - SE22

Enquiry from: Carlos E

Start Date: Immediate

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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30 May

House Extensions

London - SE19

Enquiry from: Paul F

Start Date: Immediate

Wrap extension on victorian semi-detached, single-story with skylights to side and pitched to the rear. 19.65 sqm in total.

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26 May

House Extensions

London - SE19

Enquiry from: Paul F

Start Date: Immediate

Wrap extension on victorian semi-detached, single-story with skylights to side and pitched to the rear. 19.65 sqm in total.

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06 May

House Extensions

London - SE1

Enquiry from: Abu C

Start Date: Immediate

hi, i need kitchen fixing (not replacing) ie worktop repair, tap fix, fit the missing unit. full replace bathr*** m2. recessed all switches, sockets, cables and new ceiling lights on corridor. 1 bedr...

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04 May

House Extensions

London - SE15

Enquiry from: Mary L

Start Date: Immediate

homeowner needs advice on options upvc supply and install please call to arrange an appointment to quote are you the property owner: owner what level of service do you require: design, supply & instal...

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03 May

House Extensions

London - SE1

Enquiry from: Abu C

Start Date: Immediate

hi, i need kitchen fixing (not replacing) ie worktop repair, tap fix, fit the missing unit. full replace bathr*** m2. recessed all switches, sockets, cables and new ceiling lights on corridor. 1 bedr...

Post a similar request >

30 Apr

House Extensions

London - SE15

Enquiry from: Mary L

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 telephone and email at 30/04/2021 13:15.please call to ar...

Post a similar request >

30 Apr

House Extensions

London - SE1

Enquiry from: Abu C

Start Date: Immediate

hi, i need kitchen fixing (not replacing) ie worktop repair, tap fix, fit the missing unit. full replace bathr*** m2. recessed all switches, sockets, cables and new ceiling lights on corridor. 1 bedr...

Post a similar request >

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FAQs

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.

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.

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 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.

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