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House Extension in city

House extension comes with a wide range of advantages which makes it simple to see why the extension could be a fantastic uptick in the possible rate of your home in terms of sales. So if you're looking to develop a brand-new residence extension but still not convinced regarding the project, we're right here to aid you. Being completely conscious any type of residence building work is normally a heavy investment, there's a huge requirement to be set on your choice before scheduling the commencement of any kind of job. So are house extensions worth it? Below are some of the top advantages supplied by house extensions to assist you choose if it's one of the most appropriate route for you.

 

What's Involved in Adding an Extension?

The actions will certainly vary relying on the range of your extension, however you can expect some, otherwise all, of the listed below to be included when adding an expansion to your residence:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold contract (if appropriate) to make certain you can do what you want to do.
  3. Employing an architect  to create the plans, considering your planned usage (kitchen, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage carrier to allow them know of the planned work ahead of it beginning.
  6. Acquiring auto parking allows if required for your professionals to guarantee they have simple access to your building.
  7. Making sure all intended work falls within allowed allowables.
  8. Clearing the area as well as digging deep into if essential, consisting of the elimination of trees.
  9. Building work can begin.

 

What is the cost of a house extension in city?

If you're considering including a two storey house extension, then establishing a budget for this task would certainly be a great method to begin. Comparable to a rear extension, a two floor extension normally leaves the remainder of the structure requiring some job and also, as a result of its size, this may imply the re-development of the whole house - which is why they can be really costly. Some of the various other influencing factors that can have large influence on a two storey house extension expense consists of: your area, the size of the construct, complexity of the layout (anything past the conventional build will typically require more experience and also time), the glazing to be included (the much more the glass made use of in the project, the extra the material cost), along with the team made use of.

Average House extensions cost in Ashtead

The regular cost of House extensions are £53,750 in Ashtead. Costs vary based upon the materials and the company picked. The upper price range can be as high as £74,500. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£35,500

Avg. price

Avg. price
£53,750

Avg. price high

Avg. price high
£74,500

£75000

£56250

£37500

£18750

£0

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

House extensions installation cost in Ashtead 2025

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

House extensions searches in June 2025

House extensions Projects in Ashtead in May 2025

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4

Requests for House extensions quotations in Ashtead in May 2025. -33% change from April 2025.

180

Requests for House extensions quotations in Surrey in May 2025. -25% change from April 2025.

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Ashtead

Ashtead is a village within the Metropolitan Green Belt of Surrey. The Ashtead Residents' Association, established in 1945, aims to represent the views of all who reside in Ashtead through a network of more than a hundred Road Stewards and frequent meetings. Ashtead features a substantial two-part conservation area including the mansion Ashtead House used by City of London Freemen's School, and 6 other schools. Amenities consist of parks, outlying woodland trails and a high street with convenience shopping, cafes and restaurants, a football club and a cricket club. There has been settlement in Ashtead since at least the Roman period, with a Roman villa dug up in what's now Ashtead Common. Ashtead features in the Domesday Book as Stede. The oldest portion of Ashtead has the principle shopping and social area of the village, with 2 pubs as well as the Ashtead Village Club which is a C&IU affiliate. It has a small southern conservation area, however outside of this has eight listed brick buildings, each more than two centuries old, including the Old Rectory which has been divided into Ashtead Lodge, Forge Cottage and Wisteria Cottage which are dated to roughly the 17th century and are in addition Grade II listed. The region to the north of the railway line is Ashtead Common, managed by the City of London Corporation subject to a long-standing preservation order, and is a national nature reserve. Lower Ashtead is a relatively flat area leading to Ashtead Common that has a recreation ground, a youth club and skate park, a pub, along with a range of shops all built near the preserved large square of wood in front of the railway station. Ashtead Park contains three substantial listed buildings and four lakes/ponds. For all of your house upgrades, be certain that you use trustworthy specialists in Ashtead to ensure that you get the top quality service.

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House extensions pros in Ashtead

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.

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 Ashtead

07 Aug

House Extensions

Ashtead - KT21

Enquiry from: Asarun N

Start Date: Immediate

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

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08 Jan

House Extensions

Ashtead - KT21

Enquiry from: Nigel H

Start Date: Immediate

2 Story side extension and rear single story extension

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09 Nov

House Extensions

Ashtead - KT21

Enquiry from: Shaun S

Start Date: 1 to 3 months

We are purchasing a chalet in in Ashtead, Surrey and waiting on the floor plans and plot size. From my estimations we have a build area of 12x14m. The current building consists of 2 bedrooms, receptio...

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07 Aug

House Extensions

Ashtead - KT21

Enquiry from: Clare W

Start Date: Less than one month

Small garden room to be added onto extend living room

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11 Feb

House Extensions

Ashtead - KT21

Enquiry from: Haidar S

Start Date: Immediate

Ground floor extension (with new kitchen): 35m2 2nd Story extension (with bathroom): 40m2 Loft conversion with en-suite: 35m2 Property Type: Detached Time scale: Immediate Please call to appoint

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09 Nov

House Extensions

Ashtead - KT21

Enquiry from: N

Start Date: Immediate

Demolition of exisiting single storey garage + 2 storey extension. Downstairs dining room, shower room, utiltity room, upstairs bedroom and on suite bathroom

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21 Aug

House Extensions

Ashtead - KT21

Enquiry from: Lynn R

Start Date: Immediate

Call monday 22/08 onwards To extend out the front 8 X 12 move bathroom into the build, place stairs behind, arch lounge and dining room into one and create a bedroom upstairs over looking garden at...

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07 Aug

House Extensions

Ashtead - KT21

Enquiry from: Lynn R

Start Date: Immediate

To extend out the front 8 X 12 move bathroom into the build, place stairs behind, arch lounge and dining room into one and create a bedroom upstairs over looking garden at back with two gable ends a b...

Post a similar request >

29 Jun

House Extensions

Ashtead - KT21

Enquiry from: Hasan U

Start Date: 1 to 3 months

Home owner 4x7 rear single storey extension, steel beam between dinning and kitchen, steel beam the entire length to create open plan kitchen/diner, new toilet under the stair case, 3xVelux roof skyl...

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31 May

House Extensions

Ashtead - KT21

Enquiry from: Hasan U

Start Date: Immediate

4x7 rear single storey extension, steel beam between dinning and kitchen, steel beam the entire length to create open plan kitchen/diner, new toilet under the stair case, 3xVelux roof skylights, under...

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30 May

House Extensions

Ashtead - KT21

Enquiry from: RJ H

Start Date: Immediate

Rear Extension and changes to front bay

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13 Apr

House Extensions

Ashtead - KT21

Enquiry from: Martin R

Start Date: Immediate

Large double story extension including new garage and Kitchen. Also possibly including a new loft room area

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09 May

House Extensions

Ashtead - KT21

Enquiry from: Jill C

Start Date: Immediate

Home Owner two story extension, one small room in each floor 2.5m2 Please Contact to Appoint

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FAQs

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.

What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

where to start with a house extension?

Have you decided to improve your property instead of moving? The common problem most homeowners face after deciding to embark on a home extension project is not knowing where to start. In this article we’ll walk you through everything you need to consider and put in place before commencement of your home extension project.

• Is the extension worth it?

Before breaking the bank, you must be sure that the project will add good value to your home. In terms of “value, this is not only limited to the financial gain after disposal of the property, but also several other juicy benefits to be derived from extending your home like an extra living space for the household to spread out and more.

• Do you need a planning permission?

Check with your local authority to determine whether or not you’ll require to submit an application. You can also consult a building expert like an architect for advice.

• What are the building regulation?

Even though planning permission can be dodged, you can not avoid building regulations. These regulations are the set national minimum standards for construction and design which you must comply with to ensure the safety of the individuals in and around it.

• Who will design the extension?

You have to decided whether you’ll hire a professional architect to design the extension or not.

• Who will manage the building work?

If your home extension project is designed and built by a professional company, they’ll be responsible for the management. However, if you decide to use an architect or designed it yourself, you’ll have to hire a main contractor to manage the build.

• How to set the budget?

There are so many factors that can affect the cost of an extension, so it’s better to get the costs from your builder before proceeding.

• Do I need yo inform my home insurance firm?

Absolutely! This is very important as the new extension may affect the rebuilding cost of your property which could have an impact on the policy premium.

• Do I need to inform my neighbours?

It’s very important to discuss your plan with your neighbours before applying for a planning permission and communicate about the concerns they might have.

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.
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Ashtead House extensions installers are rated 4.2 out of 5 based on 12 reviews of 123 pros.
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