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House Extension in city

House extension comes with a variety of advantages that makes it simple to see why the extension could be a great uptick in the potential price of your residential or commercial property in regards to sales. So if you're seeking to construct a new home extension yet still not convinced regarding the task, we're right here to help you. Being completely conscious any residence construction work is typically a heavy investment, there's a substantial need to be set on your choice prior to scheduling the commencement of any type of work. So are house extensions worth it? Below are several of the top benefits provided by house extensions to assist you determine if it's the most appropriate path for you.

 

What's Associated with Building an Extension?

The steps will certainly differ depending upon the scope of your extension, but you can expect some, if not all, of the listed below to be included when including an extension to your residence:

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if relevant) to see to it you can do what you wish to do.
  3. Enlisting an architect  to create the plans, considering your planned usage ( kitchen area, washroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy supplier to let them know of the prepared work ahead of it starting.
  6. Obtaining car parking allows if required for your service providers to ensure they have very easy access to your residential property.
  7. Making certain all intended work falls within permitted allowables.
  8. Clearing up the space and also excavating if necessary, consisting of the elimination of trees.
  9. Building work can begin.

 

What is the price of a house extension in city?

If you're thinking about including a two floor house extension, then setting a budget for this job would certainly be a excellent means to start. Comparable to a rear extension, a two storey extension usually leaves the remainder of the building needing some work and, due to its size, this might suggest the re-development of the entire house - which is why they can be very pricey. Several of the other influencing variables that can have large impact on a two floor house extension expense includes: your place, the dimension of the build, intricacy of the layout (anything past the common develop will generally need even more know-how and also time), the glazing to be incorporated (the more the glass used in the project, the more the material cost), as well as the group used.

Average House extensions cost in Redhill

The regular cost of House extensions are £53,750 in Redhill. 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 Redhill, as reported by local LeadsDoWork members.

House extensions installation cost in Redhill 2025

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

House extensions searches in April 2025

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Redhill

Redhill is regarded as a town in the borough of Reigate and Banstead in Surrey, England. The town, that adjoins the town of Reigate to the west, is due south of Greater London, and is a section of the London commuter belt. The town is also the post town of along with an entertainment and commercial section of three adjacent communities: Merstham, Earlswood and Whitebushes, as well as a pair of small non-urban villages towards the east in the Tandridge District, Bletchingley and Nutfield.

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House extensions pros in Redhill

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 Redhill

29 Feb

House Extensions

Redhill - RH1

Enquiry from: Sarah H

Start Date: Less than one month

Where possible a two story extension on the side of a small property. Provide additional reception room, bedroom upstairs and expand current bathroom and kitchen. Are you the property owner: Relative...

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21 Feb

House Extensions

Redhill - RH1

Enquiry from: Rebecca G

Start Date: Immediate

Not the property listed above, instead a property I am buying. Looking to do a two storey side extension. Possibly 40sqm footprint. Maximum budget £135,000. Need to know whether this is achievable. A...

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10 Sep

House Extensions

Redhill - RH1

Enquiry from: Toni D

Start Date: Immediate

To build a brick built double garage

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13 Sep

House Extensions

Redhill - RH1

Enquiry from: Filiz O

Start Date: 1 to 3 months

Homeowner Please contact to appoint 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 Plumbing Work: ...

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18 May

House Extensions

Redhill - RH1

Enquiry from: Sam Q

Start Date: Immediate

Kitchen extension

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13 Apr

House Extensions

Redhill - RH1

Enquiry from: Tom G

Start Date: Immediate

Homeowner Please contact to appoint

Post a similar request >

15 Feb

House Extensions

Redhill - RH1

Enquiry from: Wasif A

Start Date: 1 to 3 months

Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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15 Jan

House Extensions

Redhill - RH1

Enquiry from: Sean M

Start Date: Immediate

Two storey rear extension to 2 storey townhouse 2.4x4.5m removing and re installing 1 no existing bi fold doors and 2 no uPVC windows. New extension to comprise dining room in ground floor and two bed...

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18 Sep

House Extensions

Redhill - RH1

Enquiry from: Andrew D

Start Date: Immediate

Side Return Extensions- Existing Dimensions of Galley Kitchen (Bathroom directly above) Looking towards garden - Width 2.8m - Length - 4m - Take down left hand wall extend 1.2-1.5m wider, creating 4x...

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14 Sep

House Extensions

Redhill - RH1

Enquiry from: Andrew D

Start Date: Immediate

Side Return Extensions- Existing Dimensions of Galley Kitchen (Bathroom directly above) Looking towards garden - Width 2.8m - Length - 4m - Take down left hand wall extend 1.2-1.5m wider, creating 4x...

Post a similar request >

04 Feb

House Extensions

Redhill - RH1

Enquiry from: Giles K

Start Date: 1 to 3 months

We are looking to build a single storey extension on the back of our house. Thinking 15-20m2. The plan will be to convert the existing room into a kitchen and create a dining room from the extension. ...

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29 Jan

House Extensions

Redhill - RH1

Enquiry from: Kay P

Start Date: Less than one month

Open planning between kitchen and conservatory (conservatory will be knock down) to become dinning room and toilet need to move maybe under the stairs or study room not sure need help with design plea...

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17 Oct

House Extensions

Redhill - RH1

Enquiry from: Claudia R

Start Date: 3+ months

Rear house extention

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17 May

House Extensions

Redhill - RH1

Enquiry from: A

Start Date: Immediate

We are looking to purchase this property and are wanting costs for adding a double level extension on the side of the existing extension. The external space is about 2.5m by 3.3m. We would like a pitc...

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02 Jan

House Extensions

Redhill - RH1

Enquiry from: Alice B

Start Date: Immediate

Two story wrap around extension (rear and side) on a three bedroom end of terrace property.

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02 Jan

House Extensions

Redhill - RH1

Enquiry from: David B

Start Date: Immediate

We having planning permission to build a two story wrap-around extension on our property

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09 Oct

House Extensions

Redhill - RH1

Enquiry from: Collins I

Start Date: Immediate

We are hoping to expand above our double garage. 5mx 8m, to have 1 extra bedroom Study, Family room , family bathroom, and additional WC etc. Are you the property owner: Owner of the property Proper...

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03 Sep

House Extensions

Redhill - RH1

Enquiry from: I R

Start Date: Immediate

Home owner Two story extension with a pitch roof. Extension on a car port between existing garage and the house measuring 10 feet x 28 feet Plans and Planning permission in place Time scale: Less...

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13 Aug

House Extensions

Redhill - RH1

Enquiry from: I R

Start Date: Immediate

Home owner Two story extension with a pitch roof. Extension on a car port between existing garage and the house measuring 10 feet x 28 feet Planning permission in place Time scale: Less than one mo...

Post a similar request >

22 Apr

House Extensions

Redhill - RH1

Enquiry from: Laura B

Start Date: 3+ months

home owner 3 story extension no planning permission should not be a problem no plans 3-6 months Front of house is 2 storey, back is 3 storey. Kitchen is in basement. We are looking for a 3 sto...

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FAQs

Will my extension be expensive?

It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.

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.

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.
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.

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