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House Extension in city

House extension includes a variety of advantages which makes it easy to see why the extension could be a fantastic uptick in the possible price of your residential or commercial property in regards to sales. So if you're aiming to build a new home extension but still not convinced about the task, we're here to assist you. Being fully mindful any home construction work is typically a heavy financial investment, there's a huge need to be set on your decision before setting up the commencement of any work. So are house extensions worth it? Below are a few of the leading benefits used by house extensions to assist you make a decision if it's one of the most appropriate route for you.

 

What's Associated with Building an Extension?

The steps will certainly vary depending on the scope of your extension, but you can expect some, if not all, of the listed below to be involved when adding an extension to your home:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if suitable) to make certain you can do what you intend to do.
  3. Hiring an architect  to draw up the plans, considering your expected usage (kitchen, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage carrier to allow them know of the prepared work ahead of it beginning.
  6. Getting car parking allows if needed for your service providers to ensure they have simple accessibility to your residential building.
  7. Making sure all prepared work falls within permitted allowables.
  8. Clearing up the area as well as excavating if needed, consisting of the removal of trees.
  9. Building job can start.

 

What is the expense of a house extension in city?

If you're taking into consideration adding a two storey house extension, after that establishing a allocate this job would certainly be a wonderful method to start. Comparable to a rear extension, a 2 floor extension normally leaves the rest of the structure requiring some work and also, due to its size, this may suggest the re-development of the entire house - which is why they can be really pricey. A few of the other affecting aspects that can have large effect on a two floor house extension cost includes: your location, the size of the build, complexity of the design (anything beyond the common construct will generally need more experience as well as time), the glazing to be integrated (the extra the glass used in the task, the extra the product price), in addition to the team utilized.

Average House extensions cost in Chertsey

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

House extensions installation cost in Chertsey 2026

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

House extensions searches in June 2026

House extensions Projects in Chertsey in May 2026

465

Requests for quotations in Chertsey in May 2026

5

Requests for House extensions quotations in Chertsey in May 2026. -17% change from April 2026.

180

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

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

House extensions searches in cities and towns near Chertsey May 2026

16

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10

Requests for quotations in Epsom in May 2026

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Requests for quotations in Walton-on-thames in May 2026

6

Requests for quotations in Addlestone in May 2026

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Chertsey

Chertsey is a town in the Runnymede borough of the English county of Surrey. It's located on the right bank of the River Thames exactly where it meets a corollary, the Abbey River and a tributary, the River Bourne. In accordance with the 2011 Census, the town features a population of around 15967. Being inside a narrow projection of the Greater London Urban Area, encompassed by the Thames and the M25, as well as having a branch line railway, travelling 29 miles to central London is made fairly easy for the town's residents, making Chertsey a commuter town. The town is home to a variety of historic landmarks. Chertsey's built-up area comprises the mediaeval tower and chancel roof of its Anglican church, a sizeable curfew bell, and listed buildings dating back to the 18th century, such as the local pedestrian bridge and Botleys Mansion. Surrounding the landmarks are a number of independent and commercial chain companies, providing a wide selection of hotels, cafes, gift shops, public houses and restaurants, in addition to a church and a museum. The museum hosts the Black Cherry Fair each year, which includes live music performances and refreshments within the museum garden. As a result of the big amounts of open field and green spaces inside the town, further entertainment is provided for residents by the sports and playing fields, the Thames Path National Trail, Chertsey Meads plus a round knoll known as St. Ann's Hill. A particularly desirable amusement for residents and visitors is Thorpe Park, a theme park attached to the town by a frequent bus service and Chertsey station.For all your property upgrades, be sure that you use trustworthy experts in Chertsey to make sure you get the most effective quality.

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House extensions pros in Chertsey

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.

Tectra Partnership Ltd

1 review(s)
Based: in Slough, SL3 0JE

Latest review

Deepak S., KT10
5

House Extensions in Esher

excellent communication

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 Chertsey

18 Nov

House Extensions

Chertsey - KT16

Enquiry from: Priscilla S

Start Date: Less than one month

Are you the property owner: Owner of the property How many windows do you require: What level of service do you require: Supply and fit Other Forms: None Please call to appoint Customer is currently ...

Post a similar request >

15 Nov

House Extensions

Chertsey - KT16

Enquiry from: Priscilla S

Start Date: Less than one month

Are you the property owner: Owner of the property How many windows do you require: What level of service do you require: Supply and fit Other Forms: None Please call to appoint Customer is currently ...

Post a similar request >

12 Nov

House Extensions

Chertsey - KT16

Enquiry from: Priscilla S

Start Date: Less than one month

Are you the property owner: Owner of the property How many windows do you require: What level of service do you require: Supply and fit Other Forms: None Please call to appoint Customer is currently ...

Post a similar request >

24 Sep

House Extensions

Chertsey - KT16

Enquiry from: Deborah D

Start Date: Immediate

Hi We would like to get a ground floor kitchen extension about 6 meters wide & out by 3 meters.. We were hoping to not go over £21K is this possible? We would fir the kitchen ourselves.

Post a similar request >

21 Sep

House Extensions

Chertsey - KT16

Enquiry from: Deborah D

Start Date: Immediate

Hi We would like to get a ground floor kitchen extension about 6 meters wide & out by 3 meters.. We were hoping to not go over £21K is this possible? We would fir the kitchen ourselves.

Post a similar request >

17 Sep

House Extensions

Chertsey - KT16

Enquiry from: Deborah D

Start Date: Immediate

Hi We would like to get a ground floor kitchen extension about 6 meters wide & out by 3 meters.. We were hoping to not go over £21K is this possible? We would fir the kitchen ourselves.

Post a similar request >

03 May

House Extensions

Chertsey - KT16

Enquiry from: Deborah D

Start Date: Immediate

Hi I am enquiring at how much a 1 storey extension 3 meters by about 6 would be. Please email back instead of calling if possible. Many Thanks Deb Are you the property owner: Owner of the pr...

Post a similar request >

17 Nov

House Extensions

Chertsey - KT16

Enquiry from: Luke W

Start Date: Less than one month

*Property owner House extension Supplied and fitted Please call to appoint

Post a similar request >

13 Nov

House Extensions

Chertsey - KT16

Enquiry from: Luke W

Start Date: Less than one month

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 Property Type: Semi detached Looking Fo...

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31 May

House Extensions

Chertsey - KT16

Enquiry from: Gareth M

Start Date: Immediate

Single storey rebuild of existing extension to rear of house. Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: No Do you have pl...

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03 May

House Extensions

Chertsey - KT16

Enquiry from: Mr W

Start Date: Immediate

Front single story extension (porch & bathroom) Remove internal wall to extend kitchen. Remove storage area (2 very small walls approx 1 meter each).

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26 Oct

House Extensions

Chertsey - KT16

Enquiry from: Mrs S

Start Date: 1 to 3 months

Two quotes required: 1.Single storey extension, replacing current garden room. 2.Single storey extension, replacing garden room and extending kitchen. Are you the property owner: Owner of the prop...

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09 Aug

House Extensions

Chertsey - KT16

Enquiry from: N

Start Date: Immediate

2 storey 3m x 11m rear extension Single storey 5m side extension Single storey 2m side extension Renovation of existing interior 4 new bathrooms 1 new kitchen Decoration

Post a similar request >

05 Jul

House Extensions

Chertsey - KT16

Enquiry from: P D

Start Date: 1 to 3 months

Home Owner Extension on Property - create more living space Assist with plans and Planning permission Please call to appoint *

Post a similar request >

17 May

House Extensions

Chertsey - KT16

Enquiry from: RICHARD D

Start Date: Immediate

ground floor extension with planning permission on mid terrace town house Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have pl...

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05 May

House Extensions

Chertsey - KT16

Enquiry from: P D

Start Date: 1 to 3 months

Home Owner Extension on Property Please call to appoint *

Post a similar request >

22 Jan

House Extensions

Chertsey - KT16

Enquiry from: Carl S

Start Date: Immediate

Rear extension (approx 5x5m) to a mid terrace bungalow with a rear dormer loft conversion. Rear access is available.

Post a similar request >

27 Apr

House Extensions

Chertsey - KT16

Enquiry from: Nathan M

Start Date: 3+ months

2 storey house extension to the back and one storey to each side under permitted development Are you the property owner: Owner of the property Looking For: Double storey extension Property Type: ...

Post a similar request >

31 Jan

House Extensions

Chertsey - KT16

Enquiry from: David K

Start Date: 3+ months

Side extension 4m x 4m. This will be a new lounge area Homeowner Will need assistance with planning permission Plans will need to be drawn up Please contact to appoint

Post a similar request >

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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 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.

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.

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.

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