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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 £51,667 in Southwark. 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 Southwark, as reported by local LeadsDoWork members.

House extensions installation cost in Southwark 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 Southwark in August 2026

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Requests for quotations in Southwark in August 2026

0

Requests for House extensions quotations in Southwark in August 2026. 0% change from July 2026.

1,000

Requests for House extensions quotations in London County 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 Southwark August 2026

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

27 Mar

House Extensions

London - SE19

Enquiry from: Natasha D

Start Date: Immediate

Customer in London area made an enquiry for House Extension online. Confirmed via SMS at 12:58 Please call to arrange an appointment to discuss options

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29 Sep

House Extensions

London - SE26

Enquiry from: Jennifer K

Start Date: Immediate

Customer in London area made an enquiry for House Extension online. Please call to arrange an appointment to discuss options

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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

House Extensions

London - SE21

Enquiry from: Patricia Z

Start Date: Immediate

Loft conversion ( bedroom and bathroom) Stairs

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11 May

House Extensions

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

Start Date: Immediate

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 >

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FAQs

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.

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.

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.

House extensions

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Overall rating:


Southwark House extensions installers are rated 4.3 out of 5 based on 14 reviews of 121 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 Southwark House extensions contractors

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