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House Extension in city

House extension includes a variety of advantages that makes it easy to see why the extension could be a excellent uptick in the possible rate of your property in terms of sales. So if you're aiming to develop a new house extension yet still not encouraged regarding the job, we're here to help you. Being completely conscious any type of house building and construction work is usually a hefty investment, there's a significant demand to be set on your decision before arranging the commencement of any kind of job. So are house extensions worth it? Below are some of the top advantages used by house extensions to help you make a decision if it's the most ideal course for you.

 

What's Associated with Adding an Extension?

The steps will certainly vary depending on the range of your extension, yet you can anticipate some, if not all, of the below to be included when including an expansion to your home:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold contract (if applicable) to make sure you can do what you want to do.
  3. Hiring an architect  to prepare the plans, considering your intended use ( cooking area, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy service provider to let them recognize of the intended job ahead of it beginning.
  6. Obtaining car park allows if required for your specialists to guarantee they have easy accessibility to your property.
  7. Seeing to it all prepared job falls within permitted allowables.
  8. Cleaning the area and excavating if needed, including the removal of trees.
  9. Building work can start.

 

What is the price of a house extension in city?

If you're considering including a 2 floor house extension, after that establishing a allocate this project would certainly be a wonderful method to get started. Comparable to a back extension, a two storey extension typically leaves the rest of the building requiring some work as well as, due to its size, this may suggest the re-development of the whole house - which is why they can be really pricey. Some of the other affecting elements that can have big impact on a 2 floor house extension cost includes: your location, the dimension of the develop, intricacy of the layout (anything beyond the standard construct will generally call for even more competence as well as time), the glazing to be incorporated (the more the glass used in the job, the extra the product price), along with the team used.

Average House extensions cost in Hillsborough

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

House extensions installation cost in Hillsborough 2026

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

House extensions searches in June 2026

House extensions Projects in Hillsborough in May 2026

88

Requests for quotations in Hillsborough in May 2026

1

Requests for House extensions quotations in Hillsborough in May 2026. 0% change from April 2026.

30

Requests for House extensions quotations in County Down in May 2026. -25% change from April 2026.

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

House extensions searches in cities and towns near Hillsborough May 2026

30

Requests for quotations in Belfast in May 2026

13

Requests for quotations in Lisburn in May 2026

12

Requests for quotations in Strabane in May 2026

11

Requests for quotations in Newtownabbey in May 2026

10

Requests for quotations in Coleraine in May 2026

Northern Ireland is the Irish area of the United Kingdom, with the Republic of Ireland providing the remainder of the island. It comes with a population of just over 1.8 million, plus a population density of 133 people per square kilometre. This population is just 3% of the United Kingdom and 28% of people on the island of Ireland. Northern Ireland’s capital city of Belfast holds the most significant population of around 340,000, while Derry and Lisburn have 100,000 and 45,000 respectively. For all your home improvement projects in Northern Ireland, use reputable specialists to make sure you get a high-quality finish.

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Similar Customer Enquiries for House extensions in Hillsborough

20 Jul

House Extensions

Large Prk - BT26

Enquiry from: Mark B

Start Date: 1 to 3 months

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

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20 Feb

House Extensions

Large Prk - BT26

Enquiry from: Richard D

Start Date: Immediate

A double garage with pitched roof min 6m x 6m internal

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14 Jun

House Extensions

Large Prk - BT26

Enquiry from: Sasha F

Start Date: Immediate

We would like a garage extension on the side of the house that would have a utility room and downstairs bathroom within it.

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21 May

House Extensions

Large Prk - BT26

Enquiry from: Stephen S

Start Date: Immediate

3m x 5m red Brick garage. Foundations - concrete plinth?, 1 roller door, 1 access door, 1 window, guttering Are you the property owner: Owner of the property Looking For: Single storey extension Do yo...

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13 Jul

House Extensions

Large Prk - BT26

Enquiry from: Sheena M

Start Date: Immediate

Single story ext with sky lights, folding glass doors and utility room at the end

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14 Oct

House Extensions

Belfast - BT17

Enquiry from: Michael M

Start Date: Immediate

Im interested in an extension I've 2 in mind *** i would prefer is 1 with like a car port with the bedroom on top, so i cam excess to the back garden, or the double extension with the garage bottom an...

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18 Nov

House Extensions

Banbridge - BT32

Enquiry from: Catherine K

Start Date: Immediate

knock down existing sun room - extend kitchen out across patio - create utility room - entrance/mud room with shower - convert garage to room- add ensuite shower and toilet to garage room - add ensuit...

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03 Apr

House Extensions

Ballynadolly - BT28

Enquiry from: Damian O

Start Date: Immediate

Ground floor home extension

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31 Dec

House Extensions

Craigavon - BT67

Enquiry from: Anita D

Start Date: Immediate

a detached garage 6x8 metre in size. big enough for storage and a utility area. houses to left and right of us have a detached garage of a similar size. are you the property owner: owner of the proper...

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29 Aug

House Extensions

Belfast - BT10

Enquiry from: Kathy M

Start Date: Immediate

Max 15 foot by 15 foot extension with kitchen and utility

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20 Sep

House Extensions

Craigavon - BT63

Enquiry from: Christopher T

Start Date: Less than one month

i'm looking at building a garage onto the side of my house. i live in a semi-detached house. i currently have a carport built on the side of the house. customer is currently in the process of looki...

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13 Sep

House Extensions

Banbridge - BT32

Enquiry from: Brad S

Start Date: Immediate

My garage is 3 " too short for my new car to fit in and get the door closed. The garage is of rendered breeze block construction with plenty of space behind it. I am wondering if it is possible to b...

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31 Aug

House Extensions

Craigavon - BT67

Enquiry from: Emma M

Start Date: Immediate

12ft x 20ft block garage, cavity wall with insulation, red brick facade. tiled roof. 8ft eaves, gable roof. french style double door. window. internal: 2 double sockets and 1 light fitting. external: ...

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19 Aug

House Extensions

Craigavon - BT67

Enquiry from: Rowland J

Start Date: Immediate

customer in craigavon area has requested that we arrange quotes for their house extension project.mr are considering various options and would like to discuss with a builder directly.please call to di...

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09 Aug

House Extensions

Belfast - BT10

Enquiry from: Son M

Start Date: Immediate

i want to extend 3 bedroom semi-detached house as follow: 1 - extend kitchen and dining room to the rear (around 2 meter) 2 - converting garage to a home office 3 - replacing oil by gas 4 - adding a ...

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19 Jun

House Extensions

Craigavon (West) - BT64

Enquiry from: Geoff M

Start Date: Immediate

mr requested quotes for house extension from a builder around craigavon (west). they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information ...

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06 May

House Extensions

Belfast - BT29

Enquiry from: Colm Q

Start Date: Immediate

20 square meter double garage thet matches in with the house i have aractit plans but its a sign door with a pitched roof tand electricity with a light a couple of double sockets and electric door are...

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18 Mar

House Extensions

Belfast - BT17

Enquiry from: Antonio Q

Start Date: Immediate

mr requested quotes for house extension from a builder around belfast. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is ...

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10 Mar

House Extensions

Belfast - BT11

Enquiry from: Pat D

Start Date: Less than one month

extension to rear of house upstairs and downstairs and also side of the house are you the property owner: owner of the property property type: semi detached looking for: double storey extension do you...

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05 Mar

House Extensions

Craigavon - BT66

Enquiry from: Andrew B

Start Date: Immediate

I'm planning to add a single detached garage to a property i plan to purchase. I want brick and a sloping roof with roller door, side door, window and electric. Please arrange some free quotes. Ple...

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FAQs

how long do house extensions take?

If you’re about to start your house extension project and wondering how long it’ll take to complete, you’re not alone! This is one of the most common questions that’s asked by homeowners in the UK and across the globe. However, there’s no single precise answer for this as there are multiple factors that’ll affect the length of time it’ll take to complete your home extension. These factors include the size of the construction work as well as whether you’re planning to live in the house after completion or otherwise.

For a single extension, the length of time it’ll take to complete the home extension is normally up to 3 months. So let’s break this down:

As you would have expected, the first step to be taken is the preparation of the site. You start by digging out the footing and preparing the foundation which should take about 2 weeks. This is then followed by the damp course installation as well as the fitting of any drains needed around the extension which will also take a further 2 weeks.

The 5th week will be for the construction of the external walls as well as putting the blockwork in place for the provision of the cavity wall insulation. A further 2 weeks after this, will be dedicated to the installation of the roof structure and the internal walls.

It’s at this junction that you’ll call on your weather proof installer to fit in your uPVC windows and doors. Once done, the gas fitters and electricians will have to be on site to connect power to your new extension building. Subsequently, this will be followed by internal wall plastering as well as breaking through your main house. Once the plaster is dried, decorations completed and all the required furniture and units installed, the extension is ready for use.

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 does a two storey house extension cost?

If you’re considering adding a two storey house extension, then setting a budget for this project would be a great way to get started. Similar to a rear extension, a two storey extension usually leaves the rest of the building needing some work and, due to its size, this may imply the re-development of the entire house - which is why they can be very costly. Some of the other influencing factors that can have big impact on a two storey house extension cost includes: your location, the size of the build, complexity of the design ( anything beyond the standard build will normally require more expertise and time), the glazing to be incorporated ( the more the glass used in the project, the more the material cost), as well as the team used.

Generally, when it comes to extensions, the major part of the expenses will be made on the build of the project. This is because it doesn’t only cover the material cost but also the contractor’s overhead as well as the daily rates. At this stage, the extension prices can be determined by the standard of the work that’s being done.

For a fairly average room size of about 18 square metre, the two storey extension should cost within the range of £2,500 to £3,000 per square metre - with the range being determined by the finishes incorporated. Therefore, a two storey extension of about 18 square metre should cost within the range of £45,000 to £55,000. However, this is with the assumption that there are standard window sizes, bathroom suits are modest, and without any need for any purpose joinery or glazing. If you wish to include all these extra features you’ll also have to pay more to make the total cost between £70,000 to £80,000.

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.

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