Ground floor House Extension in Gwynedd

Find Single Storey House Extension Prices in Gwynedd

Home > Extensions & Conversions Projects > Single storey house extension > Gwynedd

Ground floor House Extension in Gwynedd

Are you searching for Single storey house extension in Gwynedd? Our network of builders can assist with your project. All of our Builder in Gwynedd are checked so you can see local write-ups, when business was formed, ratings, approval and also price,  enabling you to make the appropriate choice on who to work with. Let us take the inconvenience out of discovering as much as 4 professionals for your Single storey house extension job.

Single storey extensions are a great way to add space and value to your property. A single storey extension is often very cost effective and they're suitable for a wide variety of houses. Smaller single storey home extensions can be built without needing to make an application for planning permission because they are protected by permitted development rights. Large single storey extensions will still need planning permission. Single storey home extensions can also frequently be placed to either the side or back of a home. Single storey home extensions can be used to expand kitchen areas or to add a downstairs study or utility room.

 

Also, they are often used to create a larger open plan area in the downstairs of the property that could be used as a kitchen diner or living area. Adding roof lights and bifold doors to your home extension will create a sizeable airy space that creates a seamless transition in to the garden. While single storey home extensions may appear less complicated than other types of extension, careful planning continues to be required to ensure that the new space is practical and attractive. Certified architects and builders can advise you on the best 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 designed to match your current property and employ similar materials for its construction or be made to contrast, presenting an impressive effect by using differing materials.

 

Variables that effect Single Storey Extension Prices

There are a couple of elements to remember when you are establishing your budget. The primary elements that influence the price of a single storey extension are the dimension as well as the finish. However there are various other elements that it is worth keeping in mind while you are making your plans.

Over-priced Groundworks Needed

If it is hard to dig the structures and also lay the footing for your extension, after that this can boost the cost of your extensions. This might be the case if the ground is hard to work with. Debris in the ground can also raise the prices.

  • Grade of Fixtures as well as Fitting
    After the size of the extension, the following biggest factor is the grade of the surface. Picking premium options can bring about the final rate being greater than dual what it would be when selecting the basic options.
  • Size of Extension
    When you are getting an extension on your house, the single most significant variable that will affect the cost of your extension is the size of it. The bigger the extension is, the more you will certainly end up paying. If the area inside the extension is simple, with no internal wall surfaces, then this will certainly reduce the cost per m2 somewhat. However, even with this in mind. The larger the location of your extension, the extra you pay.
  • Kind of Extension
    The kind of extension you select will go a long way towards determining how huge your extension will certainly be. Side return extensions produce the tiniest added room so are often the cheapest alternative, while a wraparound kitchen extension will certainly produce one of the most area and also have one of the most over-priced fittings and fixtures.
  • Building Regulations
    In many cases, building guidelines don't include a lot of cost to a structure job. However, if you are building an extension onto an older home, there might be some unanticipated prices. This is especially real if the house has actually not just recently been upgraded. Building guidelines will apply to your entire house, not just the extension. This can bring about the requirement for electrics to be checked out or door replaced.

 

Kitchen Extensions:

Kitchen extensions mainly fall under the areas of ground floor extensions, although all type of property extensions could be made use of to integrate additional area for a kitchen.

As an approximate overview, a single storey extension will cost from ₤ 1,000 - ₤ 2,000/ m2, with a standard construct at the reduced end of the scale and a superb develop top quality at the greater end at an array, with costs of ₤ 2,500/ m2 plus.

 

How to find a builder for your extension:

We will supply approximately four Single storey house extension pros in your area, that will supply quotes for the job you want done. You'll get a property visit from professionals in Gwynedd who'll assist you to pick the ideal Single storey house extension for your home before carrying out the installation. Enter your postcode to begin browsing currently.

Average Single storey house extension cost in Gwynedd

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
£23,200

Avg. price

Avg. price
£29,000

Avg. price high

Avg. price high
£34,800

£35300

£26475

£17650

£8825

£0

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

Single storey house extension installation cost in Gwynedd 2026

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

Single storey house extension searches in June 2026

Single storey house extension Projects in Gwynedd in May 2026

2,152

Requests for quotations in Gwynedd in May 2026

0

Requests for Single storey house extension quotations in Gwynedd in May 2026. 0% change from April 2026.

0

Requests for Single storey house extension quotations in Wales in May 2026. 0% change from April 2026.

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

Single storey house extension searches in cities and towns near Gwynedd May 2026

Gwynedd

The northwest Welsh region of Gwynedd boasts a populace of 121,900 and it is one of the country's preserved counties. The City of Bangor is situated inside the county, along with a great deal of the Snowdonia National Park. With the second largest land area in Wales, covering 2,548 kilometres squared, Gwynedd has a small populace density of just 47 people/km squared. In 1974 the region was broken down into five regions, with the Isle of Anglesey becoming an individual unitary authority. For all of your house upgrades in Gwynedd, work with reputable professionals to be certain a top quality finish and enjoy peace of mind.

Looking for Single storey house extension in Gwynedd?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for Single storey house extension in Gwynedd

17 Oct

House Extensions | Single Storey

Bodorgan - LL62

Enquiry from: Stephen F

Start Date: 1 to 3 months

customer made an online enquiry for single storey house extension and confirmed on sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote....

Post a similar request >

09 Apr

House Extensions | Single Storey

Dyffryn Ardudwy - LL44

Enquiry from: Ron G

Start Date: 1 to 3 months

customer in dyffryn ardudwy areas is looking to do a couple of projects at the moment, and would like quotes for single storey house extension.confirmed interest via email at 09/04/2021 12:59.please c...

Post a similar request >

16 Jan

House Extensions | Single Storey

Menai Bridge - LL59

Enquiry from: Rory S

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...

Post a similar request >

28 Dec

House Extensions | Single Storey

Holyhead - LL65

Enquiry from: Rhiannon B

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...

Post a similar request >

20 Dec

House Extensions | Single Storey

Holyhead - LL65

Enquiry from: Rhiannon B

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...

Post a similar request >

04 Jan

House Extensions | Single Storey

Penrhyndeudraeth - LL48

Enquiry from: Iwan J

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...

Post a similar request >

22 May

House Extensions | Single Storey

Betws-y-Coed - LL24

Enquiry from: BRENDA N

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: Detached Looking For: Si...

Post a similar request >

20 May

House Extensions | Single Storey

Pwllheli - LL53

Enquiry from: Marian H

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: Looking For: Single sto...

Post a similar request >

08 Jun

House Extensions | Single Storey

Aberystwyth, Llanon, Llanrhystud - SY23

Enquiry from: Jonathan G

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...

Post a similar request >

13 Aug

House Extensions | Single Storey

Aberystwyth, Llanon, Llanrhystud - SY23

Enquiry from: Seaneen M

Start Date: Immediate

Single storey kitchen extension

Post a similar request >

Local & reliable builders near me

Tell us about your single storey house extension project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Gwynedd

Get free, no-obligation local single storey house extension quotes from 4 verified builders working in Gwynedd.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

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.

how much is a ground floor extension?

Generally, extensions can be a very tricky undertaking - where it can be quite difficult to have a clear comprehension of the rules, regulations as well as costs. Therefore before you rush in to kick start your ground floor extension project, it’ll be wise to get a good grip on the cost. In this article, we’re going to give you a rough estimate of the cost of a ground floor extension. Let’s take a look!

Just like several other home improvement projects, the cost of constructing a ground floor extension is based on a number of things which includes the size, materials used, your location, the quality of the tradesmen or company hired and lots more. For instance, if you happen to reside in London, the cost of your ground floor extension is going to be a lot higher than the other regions.

The single cost of a ground floor extension should fall within the range of £1,500 per square metre to about £2,000 per square metre. However, if you happen to live in London or the South East, this price can reach up to £1,900 per square metre to about £2,400 per square metre. These prices are for good quality ground floor extensions only. Basic or low quality extensions would naturally cost less while superior quality extension will cost more.

Now looking at the size of the ground floor extension, if you’re looking for a size of about 5m x 5m, you can expect to pay a price within the range of £32,000 to about £36,000. And as usual, in London or the South East, this price can reach up to £50,000 or even more. And that’s just for constructing the extension. If the other relevant costs like the 10 percent to 15 percent professional fees for the architect, planning application (if needed), building regulations and more, the price goes up.

how much does a single storey house extension cost?

If you’re planning to build a single story house extension, this is one of the first questions that usually comes to mind to help you set a budget and start to make plans. But as simple as it seems, a single accurate answer can not be provided due to the fact that there are several variables that can play a key role in influencing the price of a single story house extension. These variables includes the size, location, design or specification as well as the build route. In this guide, we’ll provide you with a rough estimate that you can work with to put you on the right path.

The main determinant of the cost of a single storey extension is the size of the build, while the next most relevant factor is the quality of the finish you opt for. For a small extension, you can expect to spend a sum within the range of £14,000 to £17,000. Meanwhile for a larger single storey extension, if you opt for a large wrap around the extension with a great amount of glass to be incorporated in both the walls and roof, you can expect to pay a sum within the range of £80,000 to £120,000.

Overall, the average cost of a single story house extension is usually within the range of £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.

There are some additional costs you may also need to factor in to your extension budget. These includes surveys, architect fees, planning application fee (if needed), insurance and Party Wall Agreement (if needed).

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.

Single storey house extension

Other Top Projects in Gwynedd

Customer Reviews

Overall rating:


Gwynedd Single storey house extension installers are rated 4.7 out of 5 based on 2 reviews of 8 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Single storey house extension projects that have been connected with Single storey house extension pros to help them. All Single storey house extension contractors All Gwynedd Single storey house extension contractors

Are you a builder in Gwynedd?

We can help you get more single storey house extension work with our qualified job leads and boost your business.

Join today