Ground floor House Extension in Westerham

Find Single Storey House Extension Prices in Westerham

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Ground floor House Extension in Westerham

Are you looking for Single storey house extension in Westerham? Our network of builders can help with your job. All of our Builder in Westerham are examined so you can see local testimonials, when business was set up, reviews, satisfaction and also day rate,  enabling you to make the right decision on who to employ. Let us take the inconvenience out of locating approximately 4 pros for your Single storey house extension job.

Single storey extensions are a great way to add space and value to your home. A single storey extension is often very cost effective and they are appropriate for a multitude of properties. Smaller sized single storey home extensions can be built without having to apply for planning permission as they are protected by permitted development rights. Large single storey extensions will still need planning permission. Single storey home extensions can also usually be located to either the side or back of a property. Single storey home extensions can be used to expand kitchens or to put in a downstairs study or utility room.

 

Also, they are often used to make a larger open plan area in the downstairs of the home that might be used as a kitchen diner or living area. Adding roof lighting and bifold doors to your home extension will generate a sizeable airy space that provides a seamless transition into the garden. While single storey home extensions may appear simpler than other kinds of extension, careful planning is essential to make sure that the new space is useful and beautiful. Experienced architects and building contractors can advise you on the most appropriate design for your home extension, taking into account the requirements of the new space as well as the best way to complement the existing building. Your single storey home extension could be made to complement your present property and make use of similar materials for its construction or be made to contrast, offering an impressive effect by using different materials.

 

Variables that impact Single Storey Extension Costs

There are a few variables to keep in mind when you are setting your budget plan. The primary variables that influence the cost of a single storey extension are the size as well as the surface. But there are various other variables that it is worth keeping in mind while you are making your plans.

Very Expensive Groundworks Needed

If it is hard to dig the foundations and also lay the ground for your extension, after that this can raise the price of your extensions. This may be the situation if the ground is tough to collaborate with. Debris in the ground can also elevate the costs.

  • Grade of Fixtures as well as Fitting
    After the dimension of the extension, the following most significant factor is the caliber of the surface. Selecting high-end choices can lead to the final rate being more than dual what it would certainly be when picking the fundamental choices.
  • Size of Extension
    When you are getting an extension on your house, the single biggest element that will certainly impact the cost of your extension is the size of it. The bigger the extension is, the extra you will certainly end up paying. If the area inside the extension is basic, without interior wall surfaces, then this will reduce the cost per m2 a little. However, even with this in mind. The bigger the location of your extension, the more you pay.
  • Sort of Extension
    The type of extension you select will certainly go a long way in the direction of determining how large your extension will be. Side return extensions develop the tiniest added space so are frequently the most affordable choice, while a wraparound kitchen area extension will create the most space as well as have the most high priced fittings as well as components.
  • Building Regulations
    Most of the times, building regulations don't add a great deal of cost to a structure project. However, if you are building an extension onto an older residence, there might be some unanticipated costs. This is particularly real if the residence has actually not recently been updated. Structure policies will put on your whole house, not just the extension. This can result in the need for electrics to be taken a look at or door changed.

 

Kitchen Extensions:

Kitchen extensions largely fall into the realms of ground storey extensions, although all kinds of property extensions could be used to integrate additional room for a kitchen.

As an approximate overview, a single storey extension will certainly set you back from ₤ 1,000 - ₤ 2,000/ m2, with a basic develop at the lower end of the scale as well as an outstanding develop high quality at the greater end at a variety, with prices of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

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Average Single storey house extension cost in Westerham

The typical cost of Single storey house extension is £29000. Costs alter based on the materials and the firm selected. The upper price range can be as high as £34800. The material costs are in general around £12000

Average price per Single storey house extension job in 2026

Avg. price low

Avg. price low
£24,400

Avg. price

Avg. price
£34,667

Avg. price high

Avg. price high
£44,934

£45500

£34125

£22750

£11375

£0

Prices based on actual Single storey house extension costs for Westerham, as reported by local LeadsDoWork members.

Single storey house extension installation cost in Westerham 2026

Labour cost £14,000
Material cost £12,000
Waste removal £3,000
Time frame: 8-12 weeks

Single storey house extension searches in September 2026

Single storey house extension Projects in Westerham in August 2026

250

Requests for quotations in Westerham in August 2026

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Requests for Single storey house extension quotations in Westerham in August 2026. 0% change from July 2026.

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Requests for Single storey house extension quotations in Kent in August 2026. 0% change from July 2026.

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

Single storey house extension searches in cities and towns near Westerham August 2026

Westerham

Westerham is a community and civil parish in the Sevenoaks Area of Kent, England, located 5 miles (8 km) west of Sevenoaks. It is recorded as early as the 9th century, and was stated in the Domesday Book in a Norman type, Oistreham (compare Ouistreham in Normandy, Oistreham in 1086). Ham is Old English for a village or homestead, therefore Westerham implies a westerly homestead. The River Darent streams with the town, and formerly powered three watermills. Westerham was house to the Black Eagle Brewery, which was taken control of by Taylor Walker & Co in the 1950s, becoming part of Ind Coope in 1959 and also enclosing 1965. Yeast from the brewery was protected at the National Collection of Yeast Societies and also is now used by the existing day Westerham Brewery which was established in 2004 by Robert Wicks. The brewery generates a variety of ales, including Westerham British Bulldog. Westerham was house to Crayford Engineering, an effective cars and truck conversion business, from 1962 to the 1980s, working from a workshop at Squerryes Mede.

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13 May

House Extensions | Single Storey

Westerham - TN16

Enquiry from: Larry W

Start Date: 1 to 3 months

mr requested quotes for single storey house extension from a builder around westerham. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the infor...

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18 Apr

House Extensions | Single Storey

Westerham - TN16

Enquiry from: Zena N

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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21 Oct

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Steve M

Start Date: Less than one month

customer made an enquiry for single storey house extension and confirmed on the local quotes site they would like quotes from a builder.mr lives in the tunbridge wells area and would like a call to di...

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14 Oct

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Alasdair R

Start Date: 1 to 3 months

remove existing 1.5 sqm single storey rear extension (which is a wc) and replace with 5 sqm single storey rear extension (to include a wc) which joins on to and matches the neighbour's similar extensi...

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10 Oct

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Alasdair R

Start Date: 1 to 3 months

remove existing 1.5 sqm single storey rear extension (which is a wc) and replace with 5 sqm single storey rear extension (to include a wc) which joins on to and matches the neighbour's similar extensi...

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15 Sep

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Alasdair R

Start Date: 1 to 3 months

remove existing 1.5 sqm single storey rear extension (which is a wc) and replace with 5 sqm single storey rear extension (to include a wc) which joins on to and matches the neighbour's similar extensi...

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08 Aug

House Extensions | Single Storey

Lingfield - RH7

Enquiry from: Esther R

Start Date: Immediate

customer in lingfield area has requested that we arrange quotes for their single storey house extension project.mrs are considering various options and would like to discuss with a builder directly.pl...

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30 Jun

House Extensions | Single Storey

Horley - RH6

Enquiry from: Renu G

Start Date: Immediate

customer made an online enquiry for single storey 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 ...

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01 Jan

House Extensions | Single Storey

Horley - RH6

Enquiry from: Brian H

Start Date: Immediate

extension on back of bungalow are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no do you have plans drawn up: no do you require p...

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08 Jun

House Extensions | Single Storey

Horley - RH6

Enquiry from: Greig R

Start Date: Immediate

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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10 May

House Extensions | Single Storey

Edenbridge - TN8

Enquiry from: Luke V

Start Date: Immediate

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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22 Apr

House Extensions | Single Storey

Horley - RH6

Enquiry from: Greig R

Start Date: 1 to 3 months

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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16 Apr

House Extensions | Single Storey

Horley - RH6

Enquiry from: Greig R

Start Date: 1 to 3 months

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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09 Apr

House Extensions | Single Storey

Horley - RH6

Enquiry from: Greig R

Start Date: 1 to 3 months

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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28 Dec

House Extensions | Single Storey

Edenbridge - TN8

Enquiry from: Jaime J

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: Detached Looking For: Si...

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07 Dec

House Extensions | Single Storey

Reigate - RH2

Enquiry from: Paul O

Start Date: 1 to 3 months

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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13 Sep

House Extensions | Single Storey

Redhill - RH1

Enquiry from: Filiz O

Start Date: 1 to 3 months

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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18 Aug

House Extensions | Single Storey

East Grinstead - RH19

Enquiry from: Jane T

Start Date: 1 to 3 months

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: Detached Looking For: Si...

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22 Feb

House Extensions | Single Storey

Tonbridge - TN10

Enquiry from: Patrick M

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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01 Feb

House Extensions | Single Storey

Tunbridge Wells - TN4

Enquiry from: Denhy D

Start Date: 1 to 3 months

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: Detached Looking For: Si...

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FAQs

does a kitchen extension add value to your house?

If you’re planning to add a kitchen extension to your property or perhaps you’re simply looking for ways to increase the value of your property, this is one of the common questions that usually pops up. A simple answer to this question is yes, a kitchen extension will add value to your house. With a kitchen being one of the most frequently used room in a house, adding an extra space to the commonly used room can only increase the value of the entire property. However, to determine the value added by such an extension, there’s a need to calculate the cost of setting one up first.

Kitchen extension costs are greatly influenced by a wide range of variables such as the size, type of the extension and specifications, your location, professional fees, materials used and more. Overall, the type of the extension you opt for will play the most significant role in the determination of your kitchen extension cost. Here, we’ll be looking at a single storey kitchen extension.

For a single storey kitchen extension, you can expect your home’s market value to increase within the range of 5 percent to about 10 percent. When trying to calculate the cost of kitchen extension, it’s crucial to take into account how much value it’ll add to your home so as to make sure that the amount expended will not outweigh the expected value to be added by the project.

For a more accurate idea, there’s the need to consult local estate agents. However, for a much needed guideline, single storey kitchen extensions are usually able to add about 5 to 10 percent to a home’s value, while double storey extension should be up to 20 percent. But as stated earlier, this will depend on several variables.

does a single storey extension add value to your house?

Does A Single Storey Extension Add Value To Your House?

When you’re looking to construct a single storey extension or perhaps you’re just searching for means to increase the value of your property, this question always pops up. The short and simple answer to this question is a resounding yes, a single storey extension can go a long way to increase the value of your property. Just like any other home improvement, when done right, adding a little extra living space is one of the top things you can probably think of that’ll provide a cool increase in your property’s value. However, before you rush in you must also take note of some factors so you can be certain a single storey extension is the right option for you. These factors include the quality of the build, complexity of the build, cost of the build versus the value gain, ceiling price in the area, finance costs as well as the inconveniences and stress.

Generally, the average cost of a single storey extension can range from £34,000 to £37,000. For this price, you should get a standard sized rear or side extension which also includes the cost of a kitchen - it’s the most commonly use for a single story extension especially in the UK. So it’s important to know the value they’ll add to your house before deciding to make such an investment.

The value added to your property will depend largely on the quality and size of your single storey extension. The value is usually calculated by estate agents using the number of bedrooms, bathrooms as well as the floor area. Inside London, it’ll typically be priced at £5,000 to £10,000 per square metre, while outside London should be within the range of £900 to £2,000 per square metre.

do i need planning permission for a kitchen extension?

If you’re planning to construct a kitchen extension on your property, one of the first things that comes to mind is whether or not you’ll require a planning permission before you proceed. Generally, kitchen extensions are normally classified as permitted development which allows you to carry out your project without any interruptions from the law or your local authority. In other words, if your extension is meets up with the guidelines of the permitted development rights, you won’t have to apply for a planning permission. However if otherwise, you’ll have to apply for a planning permission to your local council and may require additional reports. And regardless of your position, you’ll always need building regulations approval before you can carry out any kitchen extension project. It may also be required that you’ll have to issue a part wall notice if you’re to build on or close to the boundary with a neighbour.

If you don’t want to go through the hassle and stress involved in applying for a planning permission with your local council, then you must ensure the following:

✓ Your kitchen extension must not be over half of the area of land around your main house.

✓ The kitchen extension must not be side elevation onto a highway or forward of the principal elevation.

✓ The extension must not be taller than the highest part of the roof.

✓ The height of your kitchen extension must not go beyond four metres.

✓ Kitchen extension that’s more than one storey must not go exceed the rear wall of the main house by more than three metres.

✓ Two storey kitchen extensions must not be closer to rear boundary by anything less than seven metres.

✓ The kitchen extension must not include balconies, verandas or any raised platforms.

how much does a kitchen extension cost?

Being the most used room in a house, it’s little surprise kitchen extension are usually one of the most popular requests in the UK. They do not only open up a frequently used space in your home, but also goes a long way to add value to your property. However, to know the value that’ll added you must first determine the cost of building such an extension before moving forward. Generally, a typical kitchen extension will cost within the range of £20,000 to about £50,000 plus VAT, based on the size of your project as well as your location.

In reality, a single accurate cost of a kitchen extension will vary depending on a lot of influencing factors, one of which is the type of the extension. Let’s take a look!

✓ Rear extension. You may want to consider this type, if you do not have sufficient space for a side return. This will extend your kitchen into your garden which implies that you’re going to give up some green space to make this a reality. The average price to have this done in London will be about £30,000 or more including VAT, and about £20,000 plus VAT or more in other areas.

✓ Side return extension. This, normally, isn’t a huge add to your property, but will create a lot of space for your kitchen while also be a lot reasonable in terms of cost. This type will extend your home into an alleyway at the side of your property if any is available there. On average, the cost of the side return extension should be about £50,000 plus VAT in London and a lot less in the other regions.

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