House Extension in city

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House Extension in city

House extension includes a variety of benefits that makes it easy to see why the extension could be a terrific uptick in the potential price of your residential or commercial property in regards to sales. So if you're aiming to build a brand-new home extension however still not convinced about the task, we're right here to assist you. Being fully mindful any residence construction job is generally a hefty financial investment, there's a significant demand to be set on your choice prior to arranging the beginning of any work. So are house extensions worth it? Below are several of the top advantages used by house extensions to help you choose if it's the most suitable course for you.

 

What's Associated with Including an Extension?

The actions will differ relying on the range of your extension, however you can expect some, otherwise all, of the listed below to be entailed when adding an extension to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold contract (if appropriate) to see to it you can do what you wish to do.
  3. Employing an architect  to draw the plans, considering your intended usage ( kitchen area, shower room, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage supplier to allow them know of the intended work ahead of it beginning.
  6. Acquiring car park permits if required for your specialists to ensure they have easy access to your property.
  7. Ensuring all planned work drops within permitted allowables.
  8. Cleaning the area as well as digging deep into if necessary, consisting of the removal of trees.
  9. Structure work can begin.

 

What is the expense of a house extension in city?

If you're taking into consideration including a two storey house extension, after that setting a allocate this job would be a great way to get started. Comparable to a back extension, a 2 storey extension generally leaves the rest of the structure needing some work and also, due to its size, this may indicate the re-development of the whole house - which is why they can be really expensive. Several of the other affecting elements that can have large impact on a 2 storey house extension cost includes: your location, the size of the build, complexity of the layout (anything past the common construct will typically call for more proficiency and also time), the glazing to be included (the more the glass made use of in the task, the much more the material price), in addition to the team used.

Average House extensions cost in South East

The regular cost of House extensions are £51,667 in South East. 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 South East, as reported by local LeadsDoWork members.

House extensions installation cost in South East 2026

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

House extensions searches in July 2026

House extensions Projects in South East in June 2026

239,528

Requests for quotations in South East in June 2026

950

Requests for House extensions quotations in South East in June 2026. -10% change from May 2026.

5,901

Requests for House extensions quotations in United Kingdom in June 2026. -2% change from May 2026.

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

House extensions searches in counties near South East June 2026

180

Requests for quotations in Surrey in June 2026

160

Requests for quotations in Hampshire in June 2026

120

Requests for quotations in Kent in June 2026

110

Requests for quotations in Oxfordshire in June 2026

110

Requests for quotations in Berkshire in June 2026

70

Requests for quotations in West Sussex in June 2026

60

Requests for quotations in East Sussex in June 2026

60

Requests for quotations in Buckinghamshire in June 2026

0

Requests for quotations in Isle Of Wight in June 2026

South East

The South East of England is one of the country's nine regions and is also the largest when it comes to population size. The region has around 8.6 million occupants, and although it contains a significant land area, its population density is around 452 people per square kilometre. South East England contains a variety of counties such as Kent, Surrey, East and West Sussex, Hampshire, Buckinghamshire and Berkshire. The populace has expanded greatly over the last ten years, specifically because of the significant conurbations of regions such as Brighton, Portsmouth, Reading and Southampton. The South East is infamous for higher home prices so keep this value on your property with upgrades from expert tradespeople.

Looking for House extensions in South East?

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House extensions pros in South East

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
25th February 2022
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
3rd August 2024
5

House Extensions in London

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

Options Home Improvements LTD

1 review(s)
Based: in Kent, ME8 0DB

Here at Options Home Improvements we specialize is the bespoke design & installation of PVCu & Aluminium, windows and doors, orangeries & conservatories in Gillingham, Kent & South East area. Options Home Improvements was started due to the seemi...

Latest review

Lisa V., ME1
7th August 2016
5

House Extensions in Rochester

I haven't had the extension built yet but am planning to use them

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
4th October 2016
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
10th March 2016
5

House Extensions in Esher

excellent communication

LW Building Service

2 review(s)
Based: in London, SE20 8AG

Latest review

Rosa S., SE20
10th October 2015
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
10th October 2015
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 South East

17 Mar

House Extensions

Deal - CT14

Enquiry from: Thinu S

Start Date: Immediate

customer made an online enquiry for house extension and confirmed on sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. are you the p...

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02 Jan

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Dartford - DA2

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Add a first floor and roof to a chalet bungalow and a single story rear extension

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02 Nov

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Weybridge - KT13

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Hi I would to quote structure timber build including roof and retailing external walls

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20 Oct

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Reading - RG1

Enquiry from: Chytra G

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Customer made enquiry for House Extension quotes online. Confirmed via SMS at 05:53 Homeowner lives in Reading area. Please call to arrange appointment

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12 Oct

House Extensions

Milton Keynes - MK7

Enquiry from: SrsmMay M

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Customer is looking for House Extension quotes. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Milton Keynes area Please call to arrange an appointment

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07 Oct

House Extensions

Croydon - CR0

Enquiry from: Anjana G

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customer in area made an enquiry for house extension online. confirmed via sms at 15:58 please call to arrange an appointment to discuss options are you the property owner: owner of the property prop...

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02 Oct

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Dartford - DA2

Enquiry from: Peter B

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Customer is looking for quotes for House Extension from pros around Dartford. Please call to arrange appointment to discuss

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01 Oct

House Extensions

Chichester - PO20

Enquiry from: Doug S

Start Date: Immediate

are you the property owner: owner of the property property type: semi detached looking for: single storey extension do you have planning permission: no do you have plans drawn up: no do you require p...

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27 Sep

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Aylesbury - HP20

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Customer is looking for quotes for House Extension from pros around Aylesbury. Please call to arrange appointment to discuss

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26 Sep

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Gerrards Cross - SL9

Enquiry from: Chan G

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Customer made enquiry for House Extension quotes online. Homeowner lives in Gerrards Cross area. Please call to arrange appointment

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18 Sep

House Extensions

Guildford - GU2

Enquiry from: Alice T

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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01 Aug

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Didcot - OX11

Enquiry from: James B

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downstairs toilet extension

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17 Jun

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Hungerford - RG17

Enquiry from: Nic C

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Ground works for removing part of raised bed, construction of a retaining wall and installing a slab to dpc for rear 2-story extension.

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10 Jun

House Extensions

Andover - SP10

Enquiry from: John S

Start Date: 1 to 3 months

customer in andover 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 10/06/2025 10:13.please call...

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30 Apr

House Extensions

Oxford - OX2

Enquiry from: Mark C

Start Date: 1 to 3 months

what type of property is this for? house what type of extension do you need? single storey extension when was the property built? 1921 to 1979 how many stories is the current building? 1 storey do you...

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22 Apr

House Extensions

Brighton - BN2

Enquiry from: Matt H

Start Date: Immediate

A quote for building works on a property we are trying to buy, based on a previous planning application. All drawings can be provided

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22 Apr

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Seaford - BN25

Enquiry from: Matt H

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Quote for works based on a previous planning application

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22 Apr

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Princes Risborough - HP27

Enquiry from: Daniel A

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What type of property is this for? House What type of extension do you need? Single storey extension When was the property built? 1921 to 1979 How many stories is the current building? 2 Storeys D...

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16 Apr

House Extensions

Guildford - GU2

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Customer made enquiry for House Extension quotes online. Homeowner lives in Guildford area. Please call to arrange appointment

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14 Apr

House Extensions

Faversham - ME13

Enquiry from: Olivia S

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What type of property is this for? House What type of extension do you need? Single storey extension When was the property built? 1921 to 1979 How many stories is the current building? 2 Storeys D...

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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.
how much is a double house extension?

A double house extension is basically a construction to any aspect of your house that elevates up to offer two floors of space. It can be structured to suit your existing home in two storeys or as a side wing on a taller property. If you’re considering building a double house extension, then estimating the cost is a very important task to do before commencing the project. In this article, we’ll give you an idea of the cost of a double house extension so you can estimate yours accordingly.

The double house extension cost depends on several factors that’s specific to your home as well as your design choice. These includes:

• Location of your property. Places like London and the southeast will generally cost more than the other regions due to higher demands.

• Accessibility of the site. The ease of your site’s accessibility also plays a key role in the price.

• Size of the extension. The more the extension’s size in footprint and square metres, the higher the possible costs.

• Materials used in making the roof as well as the complexity of the roof design.

• Your choice of finishing. These includes flooring window and door frames, glazing, underfloor heating and roof lights.

• Your property’s soil type. Different types of soil requires varying treatments as well as materials to develop solid foundations.

Constructing a double house extension is a quite simple build in terms of technicality when its to the side or rear of your house as this can also help you save some money. Generally, considerably expanding your home’s space by building a double house extension will cost within the range of £1,500 per m2 to about £2,800 per m2.

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.

Can an extension add value to my home?

Yes. Most extensions will add substantial value to your home, and you may find that the extension adds more value than it cost. However, it’s important to be sure that the home remains balanced. Extending your garage and leaving your property with no parking spaces, for example, may impact your ability to sell.

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South East House extensions installers are rated 4.3 out of 5 based on 32 reviews of 244 pros.
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