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House Extension in city

House extension comes with a vast array of advantages which makes it simple to see why the extension could be a terrific uptick in the prospective price of your building in terms of sales. So if you're aiming to build a new house extension but still not convinced regarding the project, we're right here to assist you. Being fully conscious any type of home building and construction work is normally a heavy financial investment, there's a huge demand to be set on your decision prior to arranging the commencement of any type of work. So are house extensions worth it? Below are some of the leading advantages provided by house extensions to aid you decide if it's the most ideal course for you.

 

What's Associated with Adding an Extension?

The steps will differ depending on the scope of your extension, however you can expect some, if not all, of the below to be included when including an expansion to your home:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Checking your leasehold contract (if suitable) to see to it you can do what you wish to do.
  3. Getting an architect  to draw up the plans, considering your expected usage (kitchen, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage carrier to allow them know of the intended work ahead of it starting.
  6. Obtaining vehicle parking permits if needed for your service providers to guarantee they have very easy accessibility to your house.
  7. Making certain all prepared job drops within permitted allowables.
  8. Cleaning the area as well as digging deep into if necessary, including the elimination of trees.
  9. Structure job can start.

 

What is the expense of a house extension in city?

If you're considering including a two floor house extension, then establishing a allocate this task would be a wonderful means to start. Similar to a rear extension, a 2 floor extension typically leaves the rest of the structure requiring some job and, due to its dimension, this may suggest the re-development of the whole house - which is why they can be really pricey. Several of the various other influencing factors that can have big effect on a two floor house extension expense includes: your place, the dimension of the construct, complexity of the design (anything past the typical develop will typically call for even more competence and time), the glazing to be integrated (the more the glass used in the project, the extra the material expense), along with the team utilized.

Average House extensions cost in Crumlin

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

House extensions installation cost in Crumlin 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 Crumlin in May 2025

134

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1

Requests for House extensions quotations in Crumlin in May 2025. 0% change from April 2025.

80

Requests for House extensions quotations in County Antrim in May 2025. 0% change from April 2025.

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

House extensions searches in cities and towns near Crumlin May 2025

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Requests for quotations in Banbridge in May 2025

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 Crumlin

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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25 Jan

House Extensions

Belfast - BT29

Enquiry from: Cliodhna M

Start Date: Immediate

Kitchen extension - 3m x 6m

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21 Aug

House Extensions

Belfast - BT29

Enquiry from: Hiram F

Start Date: Immediate

Construct concrete integrated garage ( access on foot from end of hall ). Length 30 ft w 17 ft pitched roof height 15 ft.

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22 Jan

House Extensions

Belfast - BT29

Enquiry from: Edward L

Start Date: Immediate

I am looking for a small extension to my sunroom. It has a separate pitch to the rest of the house. The extension would be about 1.2m x 3.2m to widen the sunroom. At the same time i would be reques...

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06 Aug

House Extensions

Belfast - BT29

Enquiry from: Alan W

Start Date: Immediate

Please call to appoint Property type: Detached Work description: Double height - Garage below and two bedrooms above. Back of the garage to be a utility room. Garage and Utility to be accessed by tw...

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09 Apr

House Extensions

Belfast - BT29

Enquiry from: Joy M

Start Date: 3+ months

Extension onto side of bungalow, access through kitchen window (already cut) heating pipes already through wall. Are you the property owner: Owner Property Type: Detached Looking For: Single stor...

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07 Apr

House Extensions

Belfast - BT29

Enquiry from: Catherine M

Start Date: Immediate

I would like my kitchen extended out so just a single extension Please Contact to Appoint

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03 Mar

House Extensions

Belfast - BT29

Enquiry from: Rosemary D

Start Date: Immediate

Home Owner Double Stable (each 12*14) with additional tack/hay/trailer storage (14*20). Trailer storage may be removed subject to cost so please quote with and without. Also please quote both block...

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26 Jan

House Extensions

Belfast - BT29

Enquiry from: James M

Start Date: 3+ months

Side extension to property Homeowner Will need assistance with planning permission Plans will need to be drawn up Please contact to appoint

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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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13 Sep

House Extensions

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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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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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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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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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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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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FAQs

Will my extension be expensive?

It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.

when do you need planning permission for a house extension?

If you’re planning on adding a house extension to your property, you’d probably be worried about whether or not your proposed extension would require a planing permission. Well, it may be relieving to know that not every house extension project would require a formal consent, and in fact, several extensions are covered by the permitted development rights. Not only can this save you a considerable amount of time especially at the project’s planning phase, but it’ll also save you money on the application fee. In the UK, single storey extensions to the house’s rear can be 3 metres deep for both semi detached houses and terraces or 8 metres deep for detached homes.

So how do you know when you’d require a planning permission for your home extension? Well, if your extension plan fits these criteria explained below, then your project is most likely going to be allowable as a permitted development.

• Extensions, which includes previous additions, must not go beyond half of the original house’s total surrounding land area.

• The main elevation, or side elevation where it fronts the highway, must not be extended forward.

• For single storeys, the rear additions must not extend more than the original house’s rear by more than 3 metres in both semi attached homes and terraces (4 metres for detached houses).

• Extensions to the side must be a single storey with a height not exceeding 4 metres and not going beyond 50% of the original house’s width.

• Extensions hat within 2 metres of a boundary should have a eaves height not more than 3 metres.

• Multi storey addition must not extend beyond the original house’s rear wall by a maximum of 3 metres or 7 metres of the boundary opposite the rear wall.

• Permitted development rights do not apply in listed buildings or designated areas.

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.

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.

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