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House extension includes a wide variety of advantages that makes it very easy to see why the extension could be a terrific uptick in the prospective cost of your residential property in regards to sales. So if you're seeking to develop a brand-new house extension however still not encouraged about the job, we're right here to assist you. Being totally aware any kind of house building and construction job is typically a hefty investment, there's a huge requirement to be set on your decision before arranging the beginning of any job. So are house extensions worth it? Below are a few of the leading advantages provided by house extensions to help you decide if it's one of the most ideal path for you.

 

What's Involved in Building an Extension?

The steps will certainly vary relying on the range of your extension, yet you can expect some, otherwise all, of the below to be involved when adding an expansion to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold contract (if relevant) to see to it you can do what you want to do.
  3. Getting an architect  to draw up the plans, considering your expected usage ( kitchen area, shower room, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage service provider to let them recognize of the prepared job ahead of it beginning.
  6. Acquiring car parking permits if needed for your professionals to ensure they have very easy access to your residential property.
  7. Making certain all intended work falls within allowed allowables.
  8. Clearing up the area as well as digging deep into if needed, including the elimination of trees.
  9. Building work can start.

 

What is the cost of a house extension in city?

If you're thinking about including a 2 floor house extension, after that setting a allocate this task would be a great method to get going. Similar to a back extension, a 2 floor extension generally leaves the rest of the building requiring some job and, due to its dimension, this might suggest the re-development of the entire house - which is why they can be really pricey. Several of the other influencing variables that can have large impact on a two floor house extension expense consists of: your place, the dimension of the develop, intricacy of the design (anything beyond the typical construct will usually require even more proficiency and also time), the glazing to be integrated (the a lot more the glass utilized in the project, the a lot more the material expense), along with the group used.

Average House extensions cost in Peterlee

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

House extensions installation cost in Peterlee 2026

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

House extensions searches in July 2026

House extensions Projects in Peterlee in June 2026

462

Requests for quotations in Peterlee in June 2026

4

Requests for House extensions quotations in Peterlee in June 2026. -50% change from May 2026.

40

Requests for House extensions quotations in County Durham in June 2026. -20% change from May 2026.

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

House extensions searches in cities and towns near Peterlee June 2026

10

Requests for quotations in Sunderland in June 2026

4

Requests for quotations in Seaham in June 2026

4

Requests for quotations in Peterlee in June 2026

Peterlee

The County Durham town of Peterlee is a small town and made under the New Towns Act of 1946. It now has a populace of 30,093 and shares good ties with Sunderland and Hartlepool. For any house developments inside the coastal town of Peterlee, take a look at quotations and get the very best value for money from respectable specialists in the region.

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Similar Customer Enquiries for House extensions in Peterlee

03 Jan

House Extensions

Peterlee - SR8

Enquiry from: Emma F

Start Date: Immediate

Single Storey extension to front of property. Are you the property owner: Owner of the property Property Type: Detached Looking For: Single storey extension Do you have planning permission: No Do you ...

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09 May

House Extensions

Peterlee - SR8

Enquiry from: Michael T

Start Date: 1 to 3 months

1.5x1.5m brick built porch, one window, tiled roof and door Are you the property owner: Owner of the property Do you have planning permission: No What material would you like the roof made from: Tile ...

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04 Apr

House Extensions

Peterlee - SR8

Enquiry from: Richard H

Start Date: Immediate

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Terrace, Work description: A 3 metre wide 5 metre long single story pitched tile roof

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17 Feb

House Extensions

Peterlee - SR8

Enquiry from: Stewart W

Start Date: Immediate

single story extension 7m by 4m A loft conversion Or a 10m by 3m single story extension Are you the property owner: Owner of the property Looking For: Double storey extension Do you have planni...

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24 Dec

House Extensions

Peterlee - SR8

Enquiry from: Kerry S

Start Date: Immediate

12ft x 10ft Summer room , tiled roof, French door , 2 Windows , double radiator, electrics, plastered, summer room adjoining onto the dinning room

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12 Aug

House Extensions

Hartlepool - TS24

Enquiry from: Beverley H

Start Date: Immediate

End of terrace. Front. Side. Back. Extension

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24 Jun

House Extensions

Newton Aycliffe - DL5

Enquiry from: Claire J

Start Date: Immediate

Full garage conversation (single garage)

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06 Jun

House Extensions

Newton Aycliffe - DL5

Enquiry from: Joyce B

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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09 Dec

House Extensions

Hartlepool - TS24

Enquiry from: Jennifer O

Start Date: Immediate

customer in hartlepool areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via email at 09/12/2021 13:59.please call to arrange appo...

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16 Jul

House Extensions

Ferryhill - DL17

Enquiry from: Gary T

Start Date: Immediate

We are looking to extend out the back of our property to create a bigger kitchen & dining space downstairs and a bigger bathroom & third bedroom upstairs.

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30 Jan

House Extensions

Stockton-on-tees - TS18

Enquiry from: David W

Start Date: Immediate

Ground floor extension approximately 3m x5m

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24 Oct

House Extensions

Ferryhill - DL17

Enquiry from: Gemma B

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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01 Sep

House Extensions

Stockton-on-tees - TS19

Enquiry from: Jolene S

Start Date: Immediate

add a porch to the front of property and a vrick wall and bay window to a garage conversion are you the property owner: owner of the property do you have planning permission: no do you have planning p...

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21 Aug

House Extensions

Hartlepool - TS26

Enquiry from: Sheila H

Start Date: Immediate

brick porch to front of house aprox. 21foot x7foot 6 inches are you the property owner: owner of the property do you have planning permission: no what material are you looking for: upvc what material...

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08 Jul

House Extensions

Newton Aycliffe - DL5

Enquiry from: David C

Start Date: Less than one month

we are wanting a full side of our 3 bed semi extended ***, require plans aswell if you do this. are you the property owner: owner of the property looking for: double storey extension do you have plann...

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17 Oct

House Extensions

Stockton-on-tees - TS20

Enquiry from: Christopher Y

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Double storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Pl...

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27 May

House Extensions

Spennymoor - DL16

Enquiry from: Iain C

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Pl...

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15 Feb

House Extensions

Stockton-on-tees - TS19

Enquiry from: Kathleen L

Start Date: Immediate

2x3 metre porch with dwarf wall half glass front wood composite 5 lever lock with pitched roof Are you the property owner: Owner of the property Do you have planning permission: No What material are y...

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16 Dec

House Extensions

Newton Aycliffe - DL5

Enquiry from: Chris M

Start Date: Less than one month

Knock down 3*5m sunroom and build weatherproof shell only 3*9m single story extension with RSJ knock through to kitchen opening width 3m approx. Are you the property owner: Owner of the property Prope...

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05 Oct

House Extensions

Hartlepool - TS25

Enquiry from: Andrew M

Start Date: Immediate

Two storey rear extension (width = 6.2 metres depth from house = 4 metres). Ground floor comprises open plan dining/living space across full width of extension and removal of existing rear external wa...

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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.

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.

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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