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House extension comes with a large range of advantages that makes it simple to see why the extension could be a excellent uptick in the possible price of your residential or commercial property in terms of sales. So if you're looking to develop a new home extension but still not encouraged regarding the project, we're right here to help you. Being completely conscious any type of house building work is typically a heavy investment, there's a substantial need to be set on your decision before scheduling the commencement of any type of work. So are house extensions worth it? Below are several of the top benefits supplied by house extensions to help you determine if it's one of the most suitable path for you.

 

What's Associated with Adding an Extension?

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

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if applicable) to see to it you can do what you wish to do.
  3. Employing an architect  to create the plans, considering your expected usage ( cooking area, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance supplier to allow them recognize of the prepared job ahead of it beginning.
  6. Acquiring vehicle parking permits if required for your specialists to ensure they have easy accessibility to your residential property.
  7. Making certain all prepared job falls within permitted allowables.
  8. Clearing the space and also excavating if required, consisting of the removal of trees.
  9. Building work can begin.

 

What is the price of a house extension in city?

If you're thinking about including a two floor house extension, after that setting a allocate this project would be a terrific method to get started. Comparable to a back extension, a 2 storey extension typically leaves the remainder of the structure requiring some job as well as, as a result of its dimension, this might imply the re-development of the entire house - which is why they can be very pricey. Several of the other affecting factors that can have huge impact on a two floor house extension expense consists of: your place, the dimension of the develop, complexity of the layout (anything beyond the standard develop will usually call for more experience as well as time), the glazing to be incorporated (the a lot more the glass utilized in the task, the extra the product expense), in addition to the group used.

Average House extensions cost in King's Lynn

The regular cost of House extensions are £41,250 in King's Lynn. Costs vary based upon the materials and the company picked. The upper price range can be as high as £54,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£33,500

Avg. price

Avg. price
£41,250

Avg. price high

Avg. price high
£54,000

£54500

£40875

£27250

£13625

£0

Prices based on actual House extensions costs for King's Lynn, as reported by local LeadsDoWork members.

House extensions installation cost in King's Lynn 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 King's Lynn in April 2025

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Requests for quotations in King's Lynn in April 2025

12

Requests for House extensions quotations in King's Lynn in April 2025. 0% change from March 2025.

90

Requests for House extensions quotations in Norfolk in April 2025. 29% change from March 2025.

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

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King's Lynn

King's Lynn, also shortened to Lynn, is a sea port and marketplace town within the district of Norfolk, within the East of England. Along with a population of 42,800 it's simply 44 miles west of Norwich and since 2004, projects are going ahead to completely regenerate the town. Millions of pounds have been paid out all through the redevelopment and King's Lynn has become the UK's very first member of The Hanse, a network of towns and cities which traditionally belonged to the Hanseatic League. For all house improvements in the King's Lynn area, ensure to only use vetted and reputable business professionals for any work you need concluded.

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Similar Customer Enquiries for House extensions in King's Lynn

06 Jan

House Extensions

King's Lynn - PE30

Enquiry from: Sylvia N

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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10 Jan

House Extensions

King's Lynn - PE34

Enquiry from: Jemma P

Start Date: Immediate

2 story extension to the side of the house, downstairs being a garage and upstairs being a new master bedroom with en-suite. are you the property owner: owner of the property property type: semi detac...

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24 Nov

House Extensions

King's Lynn - PE30

Enquiry from: Sophie D

Start Date: Immediate

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

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12 Mar

House Extensions

King's Lynn - PE32

Enquiry from: GERALDINE T

Start Date: Immediate

NEED TO GET BUILDING REGS. EXTENTION SINGLE STORY BED ROOM KITCHENETTE & SHOWER ROOM. EMERGENCY BUILD FOR ELDERLY PERSON THROUGHOUT LOCKDOWN.

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28 Feb

House Extensions

King's Lynn - PE30

Enquiry from: Alan B

Start Date: Less than one month

Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? New build What material do you require, UPVC? upvc What colour do you want it to be? white I as...

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25 Jan

House Extensions

King's Lynn - PE31

Enquiry from: Richard C

Start Date: Immediate

Price to demolish garages and extend

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13 Dec

House Extensions

King's Lynn - PE30

Enquiry from: KEITH H

Start Date: Immediate

SINGLE STOREY EXTENSION 3X7.5 METRES TO FORM 2 NEW BEDROOMS. REMOVAL OF WALL BETWEEN KITCHEN AND DINING ROOM. ERRECT INTERNAL WALL IN KITCHEN AREA TO FORM UTILITY ROOM WHICH WILL ALSO HAVE A WC IN IT....

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29 May

House Extensions

King's Lynn - PE32

Enquiry from: Victoria S

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Extra bedroom

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29 Apr

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King's Lynn - PE30

Enquiry from: Daniel M

Start Date: Immediate

2 storey extendion 5x5 Are you the property owner: Owner of the property Looking For: Double storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Plumbin...

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02 Apr

House Extensions

King's Lynn - PE33

Enquiry from: Peter F

Start Date: Less than one month

A bungelow extension to rear approx 5 mtrs wide by 4 mtrs deep, a 5m * 4m exterior wall already in place. This is to make two bedrooms, partition wall between bedrooms to be easily removed to make a m...

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09 Mar

House Extensions

King's Lynn - PE33

Enquiry from: Peter F

Start Date: 1 to 3 months

ground floor extension to bungalow 6m by 6m to make a large lounge, French doors to rear and two windows to rear. Roof is tiled Customer is currently in the process of looking for quotes to add a Si...

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16 Feb

House Extensions

King's Lynn - PE30

Enquiry from: Colin W

Start Date: Less than one month

REAR EXTENSION TO HOUSE Are you the property owner: Owner of the property Property Type: Detached Looking For: Double storey extension Do you have planning permission: No Do you have plans drawn up: N...

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07 Feb

House Extensions

King's Lynn - PE33

Enquiry from: Bella D

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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18 Sep

House Extensions

King's Lynn - PE33

Enquiry from: Ryan O

Start Date: 1 to 3 months

Single extension to rear of property, to extend/replace existing conservatory. Are you the property owner: Owner of the property Property Type: Detached Looking For: Single storey extension Do you hav...

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22 Jul

House Extensions

King's Lynn - PE33

Enquiry from: Christian C

Start Date: Immediate

Building a second story on a previous single story extension

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13 Apr

House Extensions

King's Lynn - PE31

Enquiry from: Mrs S

Start Date: Immediate

Home owner House extension Please call to appoint

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25 Mar

House Extensions

King's Lynn - PE33

Enquiry from: Jenni H

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

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12 Nov

House Extensions

King's Lynn - PE32

Enquiry from: Duane P

Start Date: Immediate

To replace a 4mx4m conservatory with a 2 storey extension under a tiled apex roof. To knock through and extend an upstairs bedroom, moving a radiator and extending electrics. Ground floor to be a dual...

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10 Oct

House Extensions

King's Lynn - PE32

Enquiry from: J D

Start Date: 1 to 3 months

3m square extension with extended leanto style roof and concrete slab to provide a veranda. Either timber frame or block with external coloured render (K-rend?). Double doors from house into extensi...

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23 Sep

House Extensions

King's Lynn - PE33

Enquiry from: Shannon H

Start Date: 3+ months

proposed 2 storey extension on the side of our current 3 bed semi Homeowner Please contact to appoint

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FAQs

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 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 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.

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.

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