House Extension in city

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House Extension in city

House extension comes with a vast array of advantages which makes it easy to see why the extension could be a great uptick in the prospective cost of your residential property in terms of sales. So if you're looking to construct a new residence extension but still not convinced concerning the project, we're here to assist you. Being totally mindful any type of home building and construction job is usually a hefty investment, there's a massive need to be set on your decision prior to arranging the start of any kind of work. So are house extensions worth it? Below are some of the leading advantages provided by house extensions to assist you decide if it's one of the most ideal path for you.

 

What's Associated with Building an Extension?

The steps will certainly vary relying on the scope of your extension, yet you can expect 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 required as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if applicable) to make certain you can do what you want to do.
  3. Employing an architect  to draw up the plans, considering your intended use ( kitchen area, shower room, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance provider to let them know of the planned work ahead of it starting.
  6. Acquiring vehicle parking allows if needed for your contractors to guarantee they have very easy accessibility to your house.
  7. Seeing to it all intended work drops within permitted allowables.
  8. Clearing the area as well as digging deep into if needed, including 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 storey house extension, after that setting a budget for this task would be a excellent method to get going. Similar to a rear extension, a two floor extension typically leaves the rest of the building requiring some work and, as a result of its size, this may suggest the re-development of the whole house - which is why they can be extremely expensive. A few of the other affecting elements that can have huge impact on a two floor house extension cost consists of: your area, the size of the construct, intricacy of the layout (anything beyond the common construct will generally need even more proficiency as well as time), the glazing to be included (the extra the glass used in the project, the extra the material expense), as well as the group made use of.

Average House extensions cost in Guildford

The regular cost of House extensions are £46,250 in Guildford. Costs vary based upon the materials and the company picked. The upper price range can be as high as £64,500. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£30,500

Avg. price

Avg. price
£46,250

Avg. price high

Avg. price high
£64,500

£65000

£48750

£32500

£16250

£0

Prices based on actual House extensions costs for Guildford, as reported by local LeadsDoWork members.

House extensions installation cost in Guildford 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 Guildford in August 2026

3,456

Requests for quotations in Guildford in August 2026

10

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

180

Requests for House extensions quotations in Surrey in August 2026. -25% change from July 2026.

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

House extensions searches in cities and towns near Guildford August 2026

10

Requests for quotations in Aldershot in August 2026

10

Requests for quotations in Farnborough in August 2026

10

Requests for quotations in Hindhead in August 2026

10

Requests for quotations in Godalming in August 2026

10

Requests for quotations in Camberley in August 2026

Guildford

Guildford is the county town of Surrey, found halfway in between London and Portsmouth in the southeast of England. It has a populace in excess of 66,000 and is amongst the UK's priciest house areas outside of London. To be sure of keeping this value and even boosting your property's worth, take advantage of reputable specialists for all of your enhancements.

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House extensions pros in Guildford

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.

Similar Customer Enquiries for House extensions in Guildford

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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16 Apr

House Extensions

Guildford - GU2

Enquiry from: Clarice B

Start Date: Immediate

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

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16 Sep

House Extensions

Guildford - GU4

Enquiry from: Derek G

Start Date: Immediate

approx 4m x 4m single storey extension to the rear of property to box off in line with existing extention. property is circa 1920s traditional brick and block. this extension is directly behind our g...

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10 Dec

House Extensions

Guildford - GU5

Enquiry from: Edward P

Start Date: Immediate

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

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23 Jul

House Extensions

Guildford - GU2

Enquiry from: Korah K

Start Date: Less than one month

customer in the guildford 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 ...

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08 May

House Extensions

Guildford - GU1

Enquiry from: Tipaya P

Start Date: Immediate

6x4 rear extension with bi-folding doors

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30 Nov

House Extensions

Guildford - GU1

Enquiry from: George K

Start Date: 1 to 3 months

we'd like to extend our house towards the garden either on one or two floors depending on the limits and the costs. are you the property owner: owner of the property property type: terrace looking for...

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25 Nov

House Extensions

Guildford - GU1

Enquiry from: George K

Start Date: 1 to 3 months

we'd like to extend our house towards the garden either on one or two floors depending on the limits and the costs. are you the property owner: owner of the property property type: terrace looking for...

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19 Nov

House Extensions

Guildford - GU1

Enquiry from: George K

Start Date: 1 to 3 months

we'd like to extend our house towards the garden either on one or two floors depending on the limits and the costs. are you the property owner: owner of the property property type: terrace looking for...

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15 Nov

House Extensions

Guildford - GU1

Enquiry from: George K

Start Date: 1 to 3 months

we'd like to extend our house towards the garden either on one or two floors depending on the limits and the costs. are you the property owner: owner of the property property type: terrace looking for...

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08 Sep

House Extensions

Guildford - GU1

Enquiry from: Reza A

Start Date: Immediate

renewal and extension of porch are you the property owner: owner of the property do you have planning permission: no what material are you looking for: upvc what material would you like the roof made ...

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19 Jul

House Extensions

Guildford - GU1

Enquiry from: Rowanne H

Start Date: Immediate

3 square metre porch (max before planning is needed), small radiator, grp front door, small window, light inside, external light, external feed for camera. are you the property owner: owner of the pro...

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28 Feb

House Extensions

Guildford - GU2

Enquiry from: Graeme W

Start Date: Less than one month

Hi. We are about to have a 2 story extension built on the back of our house. Roughly 7m x 4m. I am interested in SIPS from a speed point of view. Thanks in advance Graeme Customer is currently in the...

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05 Jul

House Extensions

Guildford - GU2

Enquiry from: Matthew W

Start Date: Immediate

No previous quotes Property owner House extension- Kitchen, bedroom, w.c Please call to appoint

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16 Apr

House Extensions

Guildford - GU2

Enquiry from: Delordson K

Start Date: Immediate

Please see http://www2.guildford.gov.uk/publicaccess/applicationDetails.do?activeTab=summary&keyVal=_GUILD_DCAPR_184644

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05 Nov

House Extensions

Guildford - GU2

Enquiry from: Emma H

Start Date: Less than one month

Are you the property owner: Relative of Owner 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 Plumbi...

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09 Aug

House Extensions

Guildford - GU4

Enquiry from: Peter S

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Other Forms: 45 Agreed to recieve quotes for selected products: Yes Please call to appoint

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31 Jul

House Extensions

Guildford - GU2

Enquiry from: Soni K

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have planning permission: Yes Do you have plans drawn up: No Do you require Plumbin...

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03 Apr

House Extensions

Guildford - GU4

Enquiry from: Peter S

Start Date: Immediate

*Homeowner House extension Please call to appoint

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27 Mar

House Extensions

Guildford - GU4

Enquiry from: Peter S

Start Date: Immediate

Property Type: Semi Detached Have you got a rough idea of the design you would like: Some Ideas How many bedrooms are you looking to have: 1-2 Bedrooms How many storeys are you looking for the proper...

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FAQs

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.

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.

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.

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.

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