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House Extension in city

House extension features a variety of advantages which makes it easy to see why the extension could be a wonderful uptick in the prospective cost of your home in terms of sales. So if you're wanting to construct a brand-new house extension however still not convinced about the job, we're right here to assist you. Being totally aware any type of residence building job is normally a hefty investment, there's a big requirement to be set on your decision prior to setting up the beginning of any kind of job. So are house extensions worth it? Below are some of the leading benefits used by house extensions to help you decide if it's one of the most ideal route for you.

 

What's Involved in Adding an Extension?

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

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if relevant) to see to it you can do what you intend to do.
  3. Enlisting an architect  to draw the plans, considering your planned use (kitchen, washroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage service provider to allow them recognize of the prepared work ahead of it beginning.
  6. Getting auto parking allows if required for your contractors to guarantee they have very easy accessibility to your home.
  7. Making sure all planned work falls within permitted allowables.
  8. Clearing up the space and also excavating if necessary, including the elimination of trees.
  9. Structure job can begin.

 

What is the price of a house extension in city?

If you're considering including a two storey house extension, then setting a budget for this task would certainly be a terrific method to start. Similar to a back extension, a 2 floor extension usually leaves the remainder of the structure requiring some work as well as, due to its dimension, this may suggest the re-development of the entire house - which is why they can be extremely costly. Several of the other influencing factors that can have large impact on a 2 floor house extension cost consists of: your place, the size of the construct, complexity of the design (anything past the conventional develop will normally require even more expertise and also time), the glazing to be included (the much more the glass utilized in the project, the a lot more the material expense), along with the team made use of.

Average House extensions cost in County Durham

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

House extensions installation cost in County Durham 2025

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

House extensions searches in April 2025

House extensions Projects in County Durham in March 2025

7,941

Requests for quotations in County Durham in March 2025

40

Requests for House extensions quotations in County Durham in March 2025. -20% change from February 2025.

194

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

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

House extensions searches in cities and towns near County Durham March 2025

10

Requests for quotations in Durham in March 2025

10

Requests for quotations in Darlington in March 2025

4

Requests for quotations in Peterlee in March 2025

4

Requests for quotations in Bishop Auckland in March 2025

4

Requests for quotations in Seaham in March 2025

County Durham

The ceremonial county of Durham is situated in the northeast of England, boasting a population of 513,000. The greatest settlement is the town of Darlington, with the county town of Durham also housing a large percentage. The county is ranked 23rd for inhabitants in England and consequently features a quite low density of 600 individuals per square mile. The county features a high proportion of residents originating from England, with the Easington and Derwentside area having a 99% average. For your forthcoming house improvement project for your Durham household, review quotations from nearby and trustworthy professionals in the region.

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FAQs

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.

Can I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

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.

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.

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