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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 March 2025

House extensions Projects in Southwark in February 2025

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Requests for quotations in Southwark in February 2025

0

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

1,000

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

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

House extensions searches in cities and towns near Southwark February 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

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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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20 May

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Enquiry from: Madeline D

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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 sms and email at 20/05/2023 07:06.please call to arrange ...

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London - SE15

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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

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25 Nov

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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

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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

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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

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London - SE22

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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

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26 May

House Extensions

London - SE19

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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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London - SE1

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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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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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30 Apr

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London - SE15

Enquiry from: Mary L

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

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30 Apr

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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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FAQs

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 much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

Should I use concrete or timber footings?

For 2 metre solid fences it’s recommended to use concrete posts to support each panel. For smaller 1 metre fences or for picket fences with gaps between each timber piece you can use timber posts. A fencing contractor will be able to advise you on the best materials from the length and requirements of a new fence.

how big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

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