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House extension features a variety of advantages that makes it very easy to see why the extension could be a great uptick in the potential cost of your property in regards to sales. So if you're wanting to build a brand-new house extension but still not persuaded about the job, we're here to assist you. Being totally mindful any kind of home building and construction work is normally a hefty financial investment, there's a significant need to be set on your choice prior to setting up the beginning of any type of work. So are house extensions worth it? Below are several of the top advantages supplied by house extensions to assist you choose if it's one of the most ideal route for you.

 

What's Involved in Including an Extension?

The steps will certainly vary depending on the extent of your extension, however you can expect some, otherwise all, of the below to be involved when including an expansion to your home:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold agreement (if appropriate) to see to it you can do what you want to do.
  3. Enlisting an architect  to draw the plans, considering your intended usage ( kitchen area, shower room, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage supplier to let them understand of the prepared work ahead of it starting.
  6. Acquiring auto parking allows if required for your service providers to ensure they have easy access to your home.
  7. Making sure all planned work drops within permitted allowables.
  8. Cleaning the space and also digging deep into if necessary, including 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 2 floor house extension, after that setting a allocate this job would certainly be a wonderful method to get started. Similar to a rear extension, a two storey extension normally leaves the rest of the building requiring some job and, as a result of its dimension, this might suggest the re-development of the whole house - which is why they can be extremely expensive. Some of the various other affecting factors that can have large impact on a 2 floor house extension expense includes: your location, the dimension of the construct, complexity of the layout (anything beyond the typical construct will usually call for even more proficiency and also time), the glazing to be integrated (the a lot more the glass utilized in the project, the more the product price), as well as the team used.

Average House extensions cost in Guernsey

The regular cost of House extensions are £50,000 in Guernsey. 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 2025

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 Guernsey, as reported by local LeadsDoWork members.

House extensions installation cost in Guernsey 2025

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

House extensions searches in May 2025

House extensions Projects in Guernsey in April 2025

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Requests for quotations in Guernsey in April 2025

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Requests for House extensions quotations in Guernsey in April 2025. 0% change from March 2025.

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Requests for House extensions quotations in in April 2025. 0% change from March 2025.

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

House extensions searches in cities and towns near Guernsey April 2025

Guernsey

Guernsey is an island off the French coastline yet still holds British Crown dependency. This island has got a populace of 66,000 and a density of 2,578 individuals every sq . mile. Along with the other major island of Jersey, Guernsey forms the group called the Channel Islands. Guernsey housing is separated between local market houses and open market properties. Everyone can live in open market buildings, but local market is limited to people who qualify. For any property improvements around the Guernsey Island, make sure you employ vetted professionals to ensure an excellent price and a quality finish.

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Similar Customer Enquiries for House extensions in Guernsey

10 Jul

House Extensions

Vale, Saint Andrew - GY6

Enquiry from: R H

Start Date: Immediate

Install a large window in the end gable of a double garage, build an internal staircase at the towards the back of the garage for access to the first floor loft. Convert the centre of the loft into an...

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24 Apr

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Saint Martin - GY4

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Single storey kitchen and utility, flat roof, replace drainage. Easy access, plans passed and ready to start.

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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 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.

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.

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.

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