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House extension features a wide range of benefits which makes it easy to see why the extension could be a excellent uptick in the possible cost of your property in terms of sales. So if you're wanting to develop a new residence extension however still not encouraged about the project, we're right here to aid you. Being completely conscious any house building and construction work is generally a heavy financial investment, there's a substantial requirement to be set on your decision prior to setting up the start of any job. So are house extensions worth it? Below are a few of the top benefits provided by house extensions to assist you determine if it's one of the most suitable path for you.

 

What's Associated with Including an Extension?

The steps will vary depending upon the extent of your extension, but you can anticipate some, otherwise all, of the below to be involved when including an extension to your home:

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Checking your leasehold arrangement (if applicable) to make certain you can do what you intend to do.
  3. Getting an architect  to prepare the plans, considering your planned usage ( cooking area, shower room, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance policy carrier to allow them recognize of the intended job ahead of it starting.
  6. Acquiring parking allows if required for your specialists to ensure they have easy access to your residential building.
  7. Making certain all prepared work falls within permitted allowables.
  8. Cleaning the area and digging deep into if needed, including the removal of trees.
  9. Building work can begin.

 

What is the price of a house extension in city?

If you're taking into consideration including a 2 storey house extension, then setting a allocate this project would be a fantastic method to get started. Comparable to a back extension, a 2 floor extension generally leaves the remainder of the building requiring some job and also, due to its dimension, this might imply the re-development of the entire house - which is why they can be extremely expensive. Some of the other affecting aspects that can have large impact on a 2 floor house extension expense consists of: your area, the dimension of the build, complexity of the design (anything past the standard construct will usually call for even more competence and also time), the glazing to be incorporated (the more the glass used in the task, the more the material expense), in addition to the group used.

Average House extensions cost in County Armagh

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

House extensions installation cost in County Armagh 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 Armagh in May 2026

1,939

Requests for quotations in County Armagh in May 2026

14

Requests for House extensions quotations in County Armagh in May 2026. -22% 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 Armagh May 2026

House extensions near you

County Armagh

County Armagh is one kind of just 6 counties in North Ireland and features a populace of 159,000. The district is usually known as the Orchard County because of the rich land for apple growing. The least populated city in Ireland, Armagh, is found in the county, along with significant towns Lurgan and Portadown. There are a selection of small towns, villages and hamlets throughout County Armagh. For all property upgrades you want completed in County Armagh, be sure you exclusively use vetted professionals to offer reassurance and high quality of work.

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Similar Customer Enquiries for House extensions in County Armagh

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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17 Nov

House Extensions

Armagh - BT60

Enquiry from: Siobhan K

Start Date: 1 to 3 months

customer in armagh 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 17/11/2021 14:30.please call ...

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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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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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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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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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27 Jan

House Extensions

Craigavon - BT66

Enquiry from: JERZY O

Start Date: Immediate

are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: yes how many windows are you looking for: 5+ windows other forms: kitchen design & ins...

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14 Dec

House Extensions

Craigavon - BT66

Enquiry from: Brian S

Start Date: Immediate

are you the property owner: tenant (with permission) have you considered getting your windows replaced to match a new conservatory: no other forms: kitchen design & installation, house extension agre...

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13 Oct

House Extensions

Craigavon - BT63

Enquiry from: Robert H

Start Date: Immediate

garage rough 8 x 13 ft base already laid are you the property owner: owner of the property property type: detached

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07 Apr

House Extensions

Craigavon - BT67

Enquiry from: Natasha I

Start Date: Immediate

Granny flat (double bedroom and ensuite shower/toilet)

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28 Jan

House Extensions

Armagh - BT60

Enquiry from: Ben C

Start Date: Immediate

2 story rear extension, internal face lift in existing

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03 Jan

House Extensions

Craigavon (West) - BT64

Enquiry from: Nicola H

Start Date: Immediate

Submit your free quote for rated tradespeople

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24 Dec

House Extensions

Craigavon - BT66

Enquiry from: Marcus M

Start Date: Immediate

Single garage built block cut roof storage in roof around 6 plugs heating separate quote,

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25 Oct

House Extensions

Armagh - BT60

Enquiry from: Brendan C

Start Date: Immediate

rear 2 story extension Property Type: Terrace Looking For: Double storey extension Do you have planning permission: Yes Do you have plans drawn up: Yes Do you require Plumbing Work: Yes Do you require...

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08 Jul

House Extensions

Craigavon - BT67

Enquiry from: Alex P

Start Date: Immediate

Extension on a semi attached to extend kitchen by 2 x 6 metres. Bifold doors . One storey . Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning...

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09 Apr

House Extensions

Craigavon - BT62

Enquiry from: Scott M

Start Date: Immediate

6m x 5m extension from kitchen, sliding door from house to extension, patio door from extension to garden, multifuel stove installed

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05 Apr

House Extensions

Craigavon - BT66

Enquiry from: ROBYN M

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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21 Oct

House Extensions

Craigavon - BT66

Enquiry from: Martin C

Start Date: Immediate

A double garage Are you the property owner: Owner of the property Do you have planning permission: No Property Type: Detached Do you have plans drawn up: No Do you require Plumbing Work: No Do you re...

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16 Mar

House Extensions

Craigavon (East) - BT65

Enquiry from: John M

Start Date: Less than one month

Are you the property owner: Relative of Owner Property Type: Terrace Other Forms: 45 Agreed to recieve quotes for selected products: Yes Please call to appoint

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FAQs

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.

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.

Do I need my neighbours’ permission for an extension?

Well the reality is, sometimes, neighbours just don’t get along. With several individuals living in close proximity, it’s little surprise they tend to get on one another’s nerves from time to time. However, there’s a difference between having a tiff and being able to transform your house the way you want without having to obtain your neighbour’s approval.

The short and simple answer to this question is, not necessarily. However, you must first educate yourself by thinking about your extension and how it affects the houses around you. We’d strongly recommend you talk proposals through with your neighbour so as to avoid possible conflicts later. There are a number of reasons why your neighbour can protest to your new home extension plans. Let’s take a look!

 

  • In the event whereby your new extension is blocking their view or providing an unwanted shade on their property. Here, they have a legitimate reason to protest as no one would want their once sunny garden suddenly covered or plummet into shade.
  • In the event where it leads to a loss of privacy. For instance, if your new extension possesses a window which overlooks the neighbour’s property in any way. This is likely to be taken as an invasion of privacy and that has a little to no chance of being a welcomed idea.
  • If it’s a major project and going to take a lot of weeks before completion. The noise generated, especially when your neighbours are enjoying your summer holidays or weekends, can make their gardens not as relaxing as it used to be.
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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