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House Extension in city

House extension comes with a large range of benefits which makes it very easy to see why the extension could be a wonderful uptick in the possible rate of your home in regards to sales. So if you're wanting to construct a new home extension but still not encouraged about the task, we're below to aid you. Being fully conscious any home construction work is usually a hefty financial investment, there's a substantial demand to be set on your decision before scheduling the start of any type of job. So are house extensions worth it? Below are some of the top advantages provided by house extensions to aid you choose if it's the most suitable course for you.

 

What's Involved in Building an Extension?

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

 

  1. Obtaining Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Checking your leasehold contract (if suitable) to make sure you can do what you intend to do.
  3. Enlisting an architect  to create the plans, considering your expected usage ( cooking area, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance provider to allow them recognize of the prepared job ahead of it beginning.
  6. Acquiring vehicle parking permits if needed for your service providers to guarantee they have simple accessibility to your residential building.
  7. Ensuring all prepared work falls within allowed allowables.
  8. Cleaning the area as well as digging deep into if needed, consisting of the removal of trees.
  9. Structure job can begin.

 

What is the cost of a house extension in city?

If you're taking into consideration adding a two storey house extension, after that setting a allocate this project would be a excellent way to start. Comparable to a back extension, a 2 floor extension normally leaves the remainder of the building needing some job and, because of its dimension, this might indicate the re-development of the whole house - which is why they can be extremely pricey. Some of the other influencing factors that can have huge effect on a 2 floor house extension cost consists of: your location, the dimension of the build, complexity of the layout (anything past the conventional build will generally require even more know-how and also time), the glazing to be incorporated (the a lot more the glass utilized in the task, the much more the material expense), as well as the team made use of.

Average House extensions cost in Swansea

The regular cost of House extensions are £50,000 in Swansea. 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 Swansea, as reported by local LeadsDoWork members.

House extensions installation cost in Swansea 2025

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

House extensions searches in June 2025

House extensions Projects in Swansea in May 2025

5,427

Requests for quotations in Swansea in May 2025

10

Requests for House extensions quotations in Swansea in May 2025. -67% change from April 2025.

30

Requests for House extensions quotations in West Glamorgan in May 2025. 200% change from April 2025.

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

House extensions searches in cities and towns near Swansea May 2025

10

Requests for quotations in Swansea in May 2025

10

Requests for quotations in Llanelli in May 2025

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Requests for quotations in Neath in May 2025

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Requests for quotations in Port Talbot in May 2025

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Requests for quotations in Milford Haven in May 2025

Swansea

The city of Swansea is the second most inhabited city area within Wales, with 239,000 people. It is just behind the capital of Cardiff in this way. Swansea is situated in the southwest of Wales, lying against the shoreline and as a major city, boasts high property prices in comparison to the rest of the country. For just about any work you'd like completed on your household, be sure you only use reliable industry experts and obtain a good job finished with no hassle.

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Similar Customer Enquiries for House extensions in Swansea

07 Dec

House Extensions

Swansea - SA6

Enquiry from: Jerome M

Start Date: Immediate

I would like a kitchen renovation, with extension into the outside area, and possibly a double story extension to extend the space upstairs, as well as downstairs.

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13 Feb

House Extensions

Swansea - SA2

Enquiry from: Enass A

Start Date: Immediate

customer made enquiry for house extension quotes online. confirmed via sms at 23:20 homeowner lives in swansea area. please call to arrange appointment are you the property owner: owner of the proper...

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16 Jan

House Extensions

Swansea - SA6

Enquiry from: Dom L

Start Date: 1 to 3 months

house extension, one room with a toilet, ground floor, approx 20 square meters are you the property owner: owner of the property property type: semi detached looking for: single storey extension do yo...

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25 Sep

House Extensions

Swansea - SA3

Enquiry from: Lynne E

Start Date: 1 to 3 months

loft extension and reroofing are you the property owner: relative of owner property type: semi detached looking for: single storey extension do you have planning permission: no do you have plans drawn...

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16 Jun

House Extensions

Swansea - SA2

Enquiry from: Tony G

Start Date: Immediate

customer in swansea areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via telephone, sms and email at 16/06/2022 16:28.please call...

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12 May

House Extensions

Swansea - SA6

Enquiry from: Ratidzo M

Start Date: 1 to 3 months

customer in swansea areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms and email at 12/05/2022 21:10.please call to arrange...

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30 Mar

House Extensions

Swansea - SA4

Enquiry from: Charlotte B

Start Date: Immediate

i'm researching average cost price for different types of extensions that will suit my budget

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04 Mar

House Extensions

Swansea - SA6

Enquiry from: Adrian C

Start Date: Immediate

Self build timber frame with attic truss

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18 Feb

House Extensions

Swansea - SA4

Enquiry from: Cara L

Start Date: Immediate

double storey side extension. approx 5.5ft wide and 18ft long. taking the width out to the widest part of house, and the length to also square off with existing property. the downstairs would help ope...

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12 Oct

House Extensions

Swansea - SA1

Enquiry from: Krisztina 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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29 Sep

House Extensions

Swansea - SA7

Enquiry from: Mike B

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: no other forms: kitchen design & installation, house extension agreed to receive quote...

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21 Apr

House Extensions

Swansea - SA4

Enquiry from: Mair R

Start Date: 1 to 3 months

I want to extend my house, ideally by building over the garage and also converting the garage. I'm in the initial stages of planning the project and don't have detailed plans or planning permission ye...

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19 Apr

House Extensions

Swansea - SA4

Enquiry from: Rob J

Start Date: 1 to 3 months

Are you the property owner: Owner of the property Have you considered getting your windows replaced to match a new conservatory: Yes How many windows are you looking for: 5+ Windows Other Forms: House...

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12 Apr

House Extensions

Swansea - SA4

Enquiry from: Cara L

Start Date: Immediate

9.5 sqm rear house extension which would extend house in line with widest part of our home to the back of our property Are you the property owner: Owner of the property Looking For: Single storey ext...

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16 Sep

House Extensions

Swansea - SA4

Enquiry from: Timothy E

Start Date: 1 to 3 months

Double story extension. The bottom level into a kitchen diner which means taking out an external wall. Doors onto a new landscaped garden patio with a small utility room and toilet on the side of tha...

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26 Apr

House Extensions

Swansea - SA8

Enquiry from: Michelle O

Start Date: Immediate

I would like a two story exstention on a detached house to put a grani anix in. Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you...

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21 Apr

House Extensions

Swansea - SA8

Enquiry from: Michelle O

Start Date: Immediate

I would like a two story exstention on a detached house to put a grani anix in. Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you...

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11 Mar

House Extensions

Swansea - SA4

Enquiry from: Peter S

Start Date: Less than one month

1st floor extension over existing kitchen. Full drawings available to interested parties Customer is currently in the process of looking for quotes to add a Single storey extension to their property....

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09 Mar

House Extensions

Swansea - SA4

Enquiry from: Peter S

Start Date: Less than one month

1st floor extension over existing kitchen. Full drawings available to interested parties Customer is currently in the process of looking for quotes to add a Single storey extension to their property....

Post a similar request >

05 Mar

House Extensions

Swansea - SA4

Enquiry from: Peter S

Start Date: Less than one month

1st floor extension over existing kitchen. Full drawings available to interested parties Customer is currently in the process of looking for quotes to add a Single storey extension to their property....

Post a similar request >

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FAQs

how much is a double house extension?

A double house extension is basically a construction to any aspect of your house that elevates up to offer two floors of space. It can be structured to suit your existing home in two storeys or as a side wing on a taller property. If you’re considering building a double house extension, then estimating the cost is a very important task to do before commencing the project. In this article, we’ll give you an idea of the cost of a double house extension so you can estimate yours accordingly.

The double house extension cost depends on several factors that’s specific to your home as well as your design choice. These includes:

• Location of your property. Places like London and the southeast will generally cost more than the other regions due to higher demands.

• Accessibility of the site. The ease of your site’s accessibility also plays a key role in the price.

• Size of the extension. The more the extension’s size in footprint and square metres, the higher the possible costs.

• Materials used in making the roof as well as the complexity of the roof design.

• Your choice of finishing. These includes flooring window and door frames, glazing, underfloor heating and roof lights.

• Your property’s soil type. Different types of soil requires varying treatments as well as materials to develop solid foundations.

Constructing a double house extension is a quite simple build in terms of technicality when its to the side or rear of your house as this can also help you save some money. Generally, considerably expanding your home’s space by building a double house extension will cost within the range of £1,500 per m2 to about £2,800 per m2.

Can an extension add value to my home?

Yes. Most extensions will add substantial value to your home, and you may find that the extension adds more value than it cost. However, it’s important to be sure that the home remains balanced. Extending your garage and leaving your property with no parking spaces, for example, may impact your ability to sell.

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.

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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