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House extension comes with a wide range of advantages that makes it simple to see why the extension could be a terrific uptick in the possible cost of your residential or commercial property in terms of sales. So if you're aiming to build a new house extension however still not convinced concerning the project, we're here to assist you. Being fully aware any kind of house construction work is generally a heavy investment, there's a significant demand to be set on your decision prior to setting up the start of any job. So are house extensions worth it? Below are some of the leading benefits used by house extensions to assist you determine if it's one of the most appropriate route for you.

 

What's Involved in Building an Extension?

The actions will vary depending on the extent of your extension, yet you can expect some, if not all, of the below to be entailed when including an extension to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold contract (if suitable) to ensure you can do what you wish to do.
  3. Hiring an architect  to draw up the plans, considering your planned usage (kitchen, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance policy company to allow them understand of the prepared work ahead of it beginning.
  6. Obtaining vehicle parking allows if required for your specialists to ensure they have easy accessibility to your residential property.
  7. Making sure all prepared job drops within allowed allowables.
  8. Clearing up the space and also digging deep into if essential, including the removal of trees.
  9. Structure work can begin.

 

What is the cost of a house extension in city?

If you're considering adding a two floor house extension, then setting a budget for this task would certainly be a fantastic method to get going. Comparable to a rear extension, a two floor extension typically leaves the rest of the building requiring some job and, because of its size, this might imply the re-development of the whole house - which is why they can be really expensive. A few of the other affecting elements that can have large effect on a 2 floor house extension cost includes: your place, the dimension of the build, complexity of the layout (anything beyond the standard develop will normally call for more expertise as well as time), the glazing to be incorporated (the extra the glass made use of in the job, the much more the product expense), along with the group made use of.

Average House extensions cost in Selkirkshire

The regular cost of House extensions are £50,000 in Selkirkshire. Costs vary based upon the materials and the company picked. The upper price range can be as high as £68,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£42,000

Avg. price

Avg. price
£50,000

Avg. price high

Avg. price high
£68,000

£68500

£51375

£34250

£17125

£0

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

House extensions installation cost in Selkirkshire 2026

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

House extensions searches in September 2026

House extensions Projects in Selkirkshire in August 2026

749

Requests for quotations in Selkirkshire in August 2026

5

Requests for House extensions quotations in Selkirkshire in August 2026. 0% change from July 2026.

574

Requests for House extensions quotations in Scotland in August 2026. -9% change from July 2026.

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

House extensions searches in cities and towns near Selkirkshire August 2026

Selkirkshire

The registration county of Selkirkshire in Scotland is located towards southeast of the country, nearby other counties including Berwickshire and Dumfriesshire. Relative to its small populace of less than 30,000, the county also has a modest land area, placed at 27th in the county with just 267 square miles. For household enhancement quotes in Selkirkshire, ensure to use respectable professionals in your neighborhood to guarantee a top quality finish at the best price.

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Similar Customer Enquiries for House extensions in Selkirkshire

12 Jan

House Extensions

Galashiels - TD1

Enquiry from: Alexander M

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: house extension agreed to receive quotes for selected products: yes pl...

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03 Jan

House Extensions

Galashiels - TD1

Enquiry from: Alexander M

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: house extension agreed to receive quotes for selected products: yes pl...

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05 Sep

House Extensions

Selkirk - TD7

Enquiry from: Shona J

Start Date: Immediate

Single story, flat roof, snug, bedroom, shower room off existing house. Drains to go in Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey ext...

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07 May

House Extensions

Selkirk - TD7

Enquiry from: Charles M

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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21 Mar

House Extensions

Galashiels - TD1

Enquiry from: Stephen B

Start Date: Immediate

We would like a quote for how much it would cost to build our from a 1st floor bedroom over a kitchen and entrance porch to give us a 2nd bedroom possibly with an ensuite on the 1st floor. We haven't ...

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23 Mar

House Extensions

Galashiels - TD1

Enquiry from: Frances S

Start Date: Immediate

2 story extension at rear of property providing a garage on the ground floor, possibly a second toilet/shower room and 3rd bedroom on first floor Are you the property owner: Owner of the property Pr...

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08 Aug

House Extensions

Galashiels - TD1

Enquiry from: Hugh G

Start Date: Immediate

I would like a quote for the build of a 3 x 4m kitchen extension Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: No Would ...

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23 Jul

House Extensions

Melrose - TD6

Enquiry from: Kyra T

Start Date: Immediate

an extension at the back of the house to include entrance hall, washroom and living space. approx. size 20sq m customer is currently in the process of looking for quotes to add a single storey extens...

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02 Jan

House Extensions

Gordon - TD3

Enquiry from: G

Start Date: Immediate

Side extension(single storey)and a bedroom over an existing kitchen extension with pitched roof

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11 Feb

House Extensions

Melrose - TD6

Enquiry from: Peter J

Start Date: 1 to 3 months

Demolish current double garage plus two adjoining sheds. Renovate current concrete base. Build double garage plus single shed (or possibly triple garage instead). Looking for advice on design and type...

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02 Feb

House Extensions

Jedburgh - TD8

Enquiry from: Craig S

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Other Looking For: Single storey extension Do you have planning permission: No Would you require assistance to gain this: Yes Do y...

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FAQs

how to finance a house extension?

Do you want to beautify and increase the value of your home? If yes, a refurb and house extension is definitely a great option to consider. Depending on your home extension project, the value that’ll be added to your home’s resale value varies. However, the cost of completing a house extension project can be huge, so you just might want to consider your financing options. Fortunately, there are various options through which your house extension project can be funded with each having its own pros and cons. Your specific circumstances will determine the one that’s going to work best for you, so let’s take a look at some of the best options to help you fund your project.

• Home Remortgaging

The process whereby a mortgage is transferred from one provider to the other is known as remortgaging. This is usually done to generate funds for a project by entering a more lengthy repayment term commitment when switching. If you want to raise your funds in a quick manner, this process works best.

• Savings

This is a good reason to cultivate a good saving habits. If you’ve been able to save up some mega bucks then you’d probably won’t have to borrow money to finance your house extension.

• Unsecured Loans

If you do not buy into the idea of borrowing more against your property, you may just be able to apply for an unsecured loan especially if you have a good credit record. A secured loan makes use of collaterals like a car or house to serve as a cover for the lender, meanwhile an unsecured loan is based mainly on the credit managing history of the borrower.

• Credit Card

There are some great benefits that comes with financing your small or medium scale extension project with your credit card. Not only does it offer some real lifeline if problems arise during the project, but you can also avoid paying excessive interest on the investment by ensuring your deal has a 0% introductory rate.

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.

how much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

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.

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