House Extension in city

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House Extension in city

House extension comes with a wide variety of benefits which makes it easy to see why the extension could be a excellent uptick in the prospective price of your residential or commercial property in terms of sales. So if you're seeking to develop a new residence extension but still not convinced concerning the project, we're below to help you. Being completely conscious any type of home building and construction job is generally a heavy investment, there's a significant need to be set on your decision before scheduling the commencement of any kind of work. So are house extensions worth it? Below are several of the top benefits offered by house extensions to assist you determine if it's one of the most suitable path for you.

 

What's Involved in Including an Extension?

The steps will certainly differ relying on the range of your extension, but you can expect some, if not all, of the listed below to be included when adding an expansion to your residence:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if relevant) to ensure you can do what you wish to do.
  3. Hiring an architect  to draw the plans, considering your planned usage ( cooking area, bathroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy carrier to let them know of the intended job ahead of it starting.
  6. Obtaining car park allows if needed for your professionals to guarantee they have easy accessibility to your residential building.
  7. Making sure all planned job falls within allowed allowables.
  8. Clearing up the area as well as excavating if required, including the elimination of trees.
  9. Structure job can begin.

 

What is the price of a house extension in city?

If you're taking into consideration adding a 2 floor house extension, then establishing a allocate this project would certainly be a terrific means to begin. Comparable to a rear extension, a two floor extension generally leaves the rest of the structure requiring some job and also, due to its dimension, this might indicate the re-development of the entire house - which is why they can be really costly. Some of the various other influencing elements that can have huge effect on a 2 floor house extension cost consists of: your location, the size of the build, intricacy of the design (anything beyond the basic develop will typically need even more proficiency and also time), the glazing to be included (the more the glass used in the task, the a lot more the material expense), along with the team used.

Average House extensions cost in County Down

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

House extensions installation cost in County Down 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 County Down in April 2025

2,960

Requests for quotations in County Down in April 2025

30

Requests for House extensions quotations in County Down in April 2025. -25% change from March 2025.

194

Requests for House extensions quotations in Northern Ireland in April 2025. -22% change from March 2025.

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

House extensions searches in cities and towns near County Down April 2025

10

Requests for quotations in Banbridge in April 2025

10

Requests for quotations in Newry in April 2025

10

Requests for quotations in Bangor in April 2025

3

Requests for quotations in Downpatrick in April 2025

3

Requests for quotations in Holywood in April 2025

County Down

County Down is situated towards to south east of Northern Ireland and has a population of 49,840, which is the 4th greatest of any region in the country. It is home to the east and south side of the capital city of Belfast, plus the city of Newry, with Bangor its biggest town. As a modern day city there are a lot of new houses from the past few decades. Regardless of this, often there is the need for home maintenance and regardless of whether you live in a modern or traditional home, be certain to work with reputable tradespeople for your household upgrades.

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Similar Customer Enquiries for House extensions in County Down

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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07 Jun

House Extensions

Newtownards - BT23

Enquiry from: Alan T

Start Date: Immediate

have planning permission and drawings for a extension to my kitchen area are you the property owner: owner of the property looking for: single storey extension do you have planning permission: yes do ...

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14 Feb

House Extensions

Holywood - BT18

Enquiry from: Ali N

Start Date: Immediate

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

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19 Oct

House Extensions

Newtownards - BT23

Enquiry from: Stephen C

Start Date: Immediate

Single story rear extension

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19 Oct

House Extensions

Holywood - BT18

Enquiry from: Ali N

Start Date: Immediate

customer in holywood 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 dis...

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16 May

House Extensions

Ballynahinch - BT24

Enquiry from: Roger W

Start Date: 1 to 3 months

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

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21 Sep

House Extensions

Bangor (within Ring Road) - BT20

Enquiry from: Paul M

Start Date: Immediate

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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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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08 Aug

House Extensions

Newtownards - BT23

Enquiry from: Brian H

Start Date: Immediate

a standard size garage to side of house. main use utility and storage are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no do you ...

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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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06 Jul

House Extensions

Newtownards - BT23

Enquiry from: Rachel B

Start Date: 1 to 3 months

an attached garage for use as a utility area and keep fit room customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owne...

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14 Jun

House Extensions

Downpatrick - BT30

Enquiry from: Claire B

Start Date: Immediate

Block built rendered garage average one car..tiled pitch roof

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02 May

House Extensions

Newry (South Down section) - BT34

Enquiry from: Sean-Art C

Start Date: Immediate

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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14 Apr

House Extensions

Newry (South Down section) - BT34

Enquiry from: Paul M

Start Date: Immediate

we require a 8m x 4.3m modular extension onto the side of our house. it will be an extension of our kitchen/diner room. are you the property owner: owner of the property property type: semi detached l...

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03 Apr

House Extensions

Newtownards - BT23

Enquiry from: David H

Start Date: Immediate

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

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08 Mar

House Extensions

Bangor (outside Ring Road) - BT19

Enquiry from: Shelley R

Start Date: Immediate

A double height extension half garage and room on lower floor and bedroom ensuite on upper floor. 28ft x 9ft approx

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15 Feb

House Extensions

Newry (South Down section) - BT34

Enquiry from: Katherine K

Start Date: 1 to 3 months

back of house built up with blocks and new windows, new kitchen and bathroom and building on a wash room and separate bedroom are you the property owner: owner of the property looking for: single stor...

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23 Jan

House Extensions

Banbridge - BT32

Enquiry from: James C

Start Date: Immediate

basic single garage attached to house with external access only are you the property owner: owner of the property property type: detached looking for: single storey extension do you have planning perm...

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12 Jan

House Extensions

Newtownards - BT23

Enquiry from: Stephen G

Start Date: Less than one month

we have a victorian style end terrace and are looking to possibly create a downstairs toilet anx utility room msking use of side return and rear. also some tasks such as attic wall, front window sill...

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05 Jan

House Extensions

Newry (South Armagh section) - BT35

Enquiry from: Sarah-Louise L

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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FAQs

Should I use concrete or timber footings?

For 2 metre solid fences it’s recommended to use concrete posts to support each panel. For smaller 1 metre fences or for picket fences with gaps between each timber piece you can use timber posts. A fencing contractor will be able to advise you on the best materials from the length and requirements of a new fence.

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.

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 big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

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