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House Extension in city

House extension includes a vast array of advantages which makes it easy to see why the extension could be a wonderful uptick in the potential cost of your residential or commercial property in terms of sales. So if you're looking to construct a new house extension but still not persuaded regarding the job, we're here to help you. Being fully aware any kind of home building job is generally a heavy financial investment, there's a big demand to be set on your decision before scheduling the start of any kind of job. So are house extensions worth it? Below are several of the leading benefits used by house extensions to assist you choose if it's one of the most ideal route for you.

 

What's Associated with Adding an Extension?

The steps will certainly differ relying on the scope of your extension, yet you can anticipate some, if not all, of the below to be entailed when adding an expansion to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if appropriate) to ensure you can do what you wish to do.
  3. Hiring an architect  to create the plans, considering your intended usage (kitchen, washroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage carrier to let them recognize of the planned job ahead of it beginning.
  6. Obtaining car park allows if needed for your professionals to guarantee they have easy access to your home.
  7. Making certain all prepared job drops within allowed allowables.
  8. Cleaning the area and digging deep into if essential, consisting of the removal of trees.
  9. Building job can begin.

 

What is the expense of a house extension in city?

If you're thinking about adding a 2 floor house extension, after that establishing a budget for this job would certainly be a wonderful way to get going. Comparable to a rear extension, a 2 floor extension typically leaves the rest of the structure requiring some work and also, as a result of its dimension, this might suggest the re-development of the whole house - which is why they can be very expensive. A few of the other affecting aspects that can have big impact on a 2 storey house extension cost includes: your area, the size of the construct, intricacy of the style (anything past the standard develop will generally need more expertise and also time), the glazing to be integrated (the much more the glass used in the project, the much more the product expense), as well as the group used.

Average House extensions cost in Caterham

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

House extensions installation cost in Caterham 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 Caterham in June 2026

581

Requests for quotations in Caterham in June 2026

10

Requests for House extensions quotations in Caterham in June 2026. 0% change from May 2026.

180

Requests for House extensions quotations in Surrey in June 2026. -25% change from May 2026.

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

House extensions searches in cities and towns near Caterham June 2026

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Caterham

Caterham is a town inside the Tandridge District of Surrey. For administrative purposes, the town is split into two: Caterham on the Hill, and Caterham Valley, which consists of the principle town centre. Caterham is positioned 21 miles from the county town of Guildford and 15.5 miles south of London. The total population of Caterham, as outlined by the 2011 census, is 21090 inhabitants from 8543 households, which illustrates a development of households by 130 in ten years. Because of its easy access to London, Caterham is largely a commuter town. It does have its own businesses of both small and medium size, but there are few precise business or industrial parks for this to expand considerably. Even so, Caterham is home to a considerable area devoted to retail and restaurants in Caterham Valley, together with various pubs spread out across the town. The town contains two high streets, serving substantial and affluent communities, with a railway station in addition to a mixture of contemporary and more historic buildings. The town also has two youth football clubs, Caterham Pumas F. C. and Queens Park F. C. The Old Caterhamians Rugby Football Club, established in 1928 and shares its facilities with Caterham Cricket Club, formerly played in Queen's Park. You will find lots of possibilities for involvement in the arts or watching performances, specifically in the theatre situated inside the old Caterham Barracks plus the Miller Centre in the town centre that frequently shows amateur performances and films, as well as hosting many clubs and neighborhood groups. For all your home upgrades, be sure that you employ trustworthy specialists in Caterham to ensure that you get the very best quality.

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House extensions pros in Caterham

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...

Similar Customer Enquiries for House extensions in Caterham

18 Apr

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Alex W

Start Date: 1 to 3 months

extending a 2-bed property out the back 3m by 2.3m. there is already a party wall on one of the 3m sides. a manhole cover needs to be shifted slightly. there is an outbuilding already over half of it ...

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14 Apr

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Alex W

Start Date: 1 to 3 months

extending a 2-bed property out the back 3m by 2.3m. there is already a party wall on one of the 3m sides. a manhole cover needs to be shifted slightly. there is an outbuilding already over half of it ...

Post a similar request >

19 Mar

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Liza C

Start Date: Immediate

i'd like to create two semidetached houses from my existing house.

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17 Mar

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Liza C

Start Date: Immediate

I'd like to convert my existing house into two semidetached houses. I have a scale drawing already, so would like to have your quote for a new design.

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01 Feb

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: DANIEL B

Start Date: Immediate

COMPLETE FIRST FLOOR AND ROOF , ALSO SIDE EXTENSION

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06 Aug

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Roy L

Start Date: Immediate

we want to build an extension using our garage and the space to the from and side of the garage. the size is aprox 6mx6m

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23 Jul

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Susan W

Start Date: Immediate

i need some pointing done in living room and possible small amount of plastering 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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08 Jul

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Chris C

Start Date: Less than one month

looking to buy property in caterham (offer accepted). movement of existing decking to be relocated to join new extension site (and repaired in places if necessary). total size is approx 9mx3m extensio...

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11 Sep

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Leanne B

Start Date: Immediate

Possible room changes and extending on bungalow for a further room Are you the property owner: Owner of the property Property Type: Detached Do you have planning permission: No

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09 Mar

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Billy C

Start Date: Immediate

A loft conversion with velux to the front and full width dormer to the rear. This is to become master bedroom with En suite. Single storey side or rear extension (approx 2m x 7m to allow space downst...

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12 Feb

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Tom D

Start Date: 1 to 3 months

Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: Yes Do you have plans drawn up: Yes Do you require Plumbing Work: Yes Do you req...

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09 Feb

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Peter B

Start Date: 1 to 3 months

Homeowner Please contact to appoint Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property P...

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04 Feb

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Leanne B

Start Date: Immediate

Bungalow already has loft conversion but wonder if we can extend further across or lower ground floor.

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18 Jan

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Tom D

Start Date: 1 to 3 months

Homeowner House extension Supplied and fitted Please call to appoint

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17 Jan

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Tom D

Start Date: 1 to 3 months

Homeowner House extension Supplied and fitted Please call to appoint

Post a similar request >

15 Jan

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Tom D

Start Date: 1 to 3 months

Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: Yes Do you have plans drawn up: Yes Do you require Plumbing Work: Yes Do you req...

Post a similar request >

30 Aug

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Richard B

Start Date: Less than one month

A single storey, rear extension for a kitchen. 3.2x5.5m. Plans are with Tandridge council (neighbour notification) and this should be completed in the next couple of weeks. Are you the property owner:...

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13 Feb

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Scott A

Start Date: Immediate

Extending our kitchen into where the conservatory is. Then to make the conservatory a permenant structure. Adding a third bedroom above the new structure. Total 40 sq m approx. Are you the property ow...

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14 Dec

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Richard F

Start Date: Immediate

Home owner 4x6m single story rear extension - create more living space Planning permission not required Assist with plans Time scale: Immediate Contact to Appoint *

Post a similar request >

17 Jul

House Extensions

Caterham, Whyteleafe - CR3

Enquiry from: Melissa S

Start Date: Immediate

Property Owner Customer's own work description: Single storey extension - would like quotes Time scale: Immediate Please call to appoint

Post a similar request >

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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 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.

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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