House Extension in city

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House Extension in city

House extension comes with a large range of benefits that makes it simple to see why the extension could be a fantastic uptick in the possible cost of your residential property in regards to sales. So if you're wanting to develop a brand-new house extension however still not persuaded concerning the job, we're here to help you. Being fully conscious any house construction work is typically a hefty financial investment, there's a huge need to be set on your choice before arranging the commencement of any kind of job. So are house extensions worth it? Below are a few of the top advantages used by house extensions to assist you determine if it's the most suitable course for you.

 

What's Involved in Building an Extension?

The actions will certainly vary relying on the scope of your extension, yet you can expect some, if not all, of the listed below to be involved when including an expansion to your residence:

 

  1. Getting Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Examining your leasehold arrangement (if suitable) to ensure you can do what you want to do.
  3. Hiring an architect  to draw the plans, considering your planned usage ( cooking area, washroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance supplier to allow them know of the prepared job ahead of it beginning.
  6. Obtaining car park allows if required for your professionals to guarantee they have easy access to your house.
  7. Making sure all planned job drops within allowed allowables.
  8. Cleaning the area and also excavating if essential, consisting of the elimination of trees.
  9. Structure work can start.

 

What is the cost of a house extension in city?

If you're thinking about including a 2 floor house extension, then setting a budget for this job would certainly be a wonderful means to begin. Comparable to a rear extension, a two storey extension typically leaves the remainder of the building needing some job and, because of its dimension, this may suggest the re-development of the entire house - which is why they can be really pricey. A few of the other influencing elements that can have huge influence on a 2 floor house extension expense includes: your area, the dimension of the construct, complexity of the design (anything beyond the typical develop will generally need more knowledge as well as time), the glazing to be included (the extra the glass used in the task, the extra the material price), as well as the group utilized.

Average House extensions cost in County Antrim

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

House extensions installation cost in County Antrim 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 County Antrim in May 2026

10,165

Requests for quotations in County Antrim in May 2026

80

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

194

Requests for House extensions quotations in Northern Ireland in May 2026. -22% change from April 2026.

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

House extensions searches in cities and towns near County Antrim May 2026

30

Requests for quotations in Belfast in May 2026

13

Requests for quotations in Lisburn in May 2026

11

Requests for quotations in Newtownabbey in May 2026

10

Requests for quotations in Antrim in May 2026

10

Requests for quotations in Carrickfergus in May 2026

County Antrim

County Antrim is one of Northern Ireland's six counties having a population of little over 616,000, making it the biggest area by inhabitants in Northern Ireland. It's situated in the northeast of the country and is within the historical province of Ulster. County Antrim furthermore houses the city of Lisburn, plus the big towns of Antrim, Ballymena, Larne and Newtownabbey. Enhancing your County Antrim house is essential to retaining home value and appeal, so use only local and vetted tradespeople in your neighborhood.

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Similar Customer Enquiries for House extensions in County Antrim

15 Jun

House Extensions

Belfast - BT14

Enquiry from: Eimear F

Start Date: Immediate

2 story extension, bathroom fitted upstairs

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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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09 Oct

House Extensions

Belfast - BT7

Enquiry from: Cynthia L

Start Date: Immediate

Extending kitchen and maybe attic into loft

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13 Sep

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Belfast - BT14

Enquiry from: Thomas A

Start Date: Immediate

Ext. Over existing kitchen and yard with new downstairs toilet and shower .

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02 Sep

House Extensions

Ballymena - BT42

Enquiry from: Mark T

Start Date: Immediate

6’ high wall running 13’ long with gate in the middle. preferably from matching brick or blocks and rendered. running between house and garage. are you the property owner: owner of the property pr...

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21 Jul

House Extensions

Belfast - BT5

Enquiry from: Sushant S

Start Date: Immediate

Need kitchen to be extended , Knock of the wall between dining room and kitchen. Total extensions will be 13 SQ meters

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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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03 Sep

House Extensions

Belfast - BT9

Enquiry from: Chham R

Start Date: Immediate

customer in the belfast area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pr...

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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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12 Jun

House Extensions

Belfast - BT14

Enquiry from: Kate G

Start Date: Immediate

mrs 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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24 May

House Extensions

Belfast - BT9

Enquiry from: David M

Start Date: Immediate

extend existing ground floor side extension to the first floor. the side extension is 16sqm and is positioned between house and integrated garage. the side extension is partially rectangular in shape ...

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08 Mar

House Extensions

Ballymena - BT43

Enquiry from: Angela P

Start Date: Less than one month

price for finishing an extension are you the property owner: owner of the property property type: semi detached looking for: single storey extension do you have planning permission: yes do you have pl...

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17 Feb

House Extensions

Newtownabbey - BT36

Enquiry from: Paul M

Start Date: Immediate

Extension to side of house split into different rooms with 1 being wet room Bedroom utility room

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22 Dec

House Extensions

Ballymena - BT43

Enquiry from: Nigel N

Start Date: Immediate

I am currently in the process of purchasing a new house which has no garage. I would like to know how much a single and double detached garage would be to build approximately. Nothing fancy, just a ...

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03 Dec

House Extensions

Ballymoney - BT53

Enquiry from: Amanda C

Start Date: 1 to 3 months

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

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26 Nov

House Extensions

Belfast - BT5

Enquiry from: Jason R

Start Date: Less than one month

customer made an enquiry for house extension and confirmed on the quotatis site they would like quotes from a builder.mr lives in the belfast area and would like a call to discuss options.see below de...

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21 Nov

House Extensions

Belfast - BT14

Enquiry from: Sam M

Start Date: Immediate

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

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01 Nov

House Extensions

Belfast - BT5

Enquiry from: Tori C

Start Date: Immediate

we have a bungalow with an upstairs but would like more room upstairs… so using timber frame to make the house double storey. are you the property owner: owner of the property looking for: double st...

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28 Oct

House Extensions

Belfast - BT5

Enquiry from: Andrew M

Start Date: Immediate

customer in the belfast area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the pr...

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17 Oct

House Extensions

Ballymena - BT44

Enquiry from: Courtney A

Start Date: Less than one month

at rear, 2-3 extensions appox 1. 25/30x25/30 ft wd 2. 10x12 ft wd 3 6x9 ft dw at front, two entrance porches appox 4x8 ft dw are you the property owner: owner of the property looking for: single st...

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FAQs

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.

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.

are house extensions worth it?

Often referred to by many as the holy grail of home improvements, house extension comes with a wide range of benefits which makes it easy to see why the extension could be a great uptick in the potential price of your property in terms of sales. So if you’re looking to build a new home extension but still not convinced about the project, we’re here to help you. Being fully aware any home construction work is usually a heavy investment, there’s a huge need to be set on your decision before scheduling the commencement of any work. So are house extensions worth it? Below are some of the top benefits offered by house extensions to help you decide if it’s the most suitable route for you.

• Add To Your Home’s Value

Building an home extension is a great way to add value to your home before selling. Increasing the living space of your home is an incredible appeal to many buyers which significantly increases your property’s total value. However, you must ensure that the extension is impressively designed using top quality materials in order to generate more value.

• Good Alternative To House Moving

The most common reason for moving is usually due to a lack of sufficient space, but with house prices steadily on the increase a cost effective alternative is highly sought after. This alternative is house extension which creates more space for the household to spread out and have more privacy.

• You May Not Require A Planning Permission

You can extend your house and still not need to apply for a planning permission. To achieve this, simply comply with the laid down rules set under the permitted development rights.

• Extra Living Space

If you fill you’re starting to outgrow your existing structure and do not buy into the idea of moving, then your best bet might just be to extend your home.

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.

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