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House extension features a wide variety of benefits that makes it very easy to see why the extension could be a wonderful uptick in the potential price of your home in regards to sales. So if you're seeking to build a brand-new home extension however still not persuaded regarding the task, we're here to assist you. Being completely aware any kind of home construction job is normally a hefty investment, there's a significant need to be set on your decision before setting up the commencement of any kind of work. So are house extensions worth it? Below are some of the top advantages provided by house extensions to aid you choose if it's one of the most suitable route for you.

 

What's Involved in Adding an Extension?

The actions will certainly differ depending upon the scope of your extension, yet you can expect some, if not all, of the listed below to be included when adding an extension to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Inspecting your leasehold arrangement (if appropriate) to make certain you can do what you wish to do.
  3. Enlisting an architect  to draw the plans, considering your expected usage ( cooking area, restroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance supplier to let them recognize of the intended job ahead of it starting.
  6. Acquiring parking allows if needed for your specialists to ensure they have very easy access to your residential building.
  7. Seeing to it all planned work drops within permitted allowables.
  8. Clearing up the space as well as digging deep into if needed, consisting of the elimination of trees.
  9. Structure work can begin.

 

What is the cost of a house extension in city?

If you're taking into consideration including a 2 floor house extension, after that setting a budget for this project would certainly be a great means to start. Similar to a rear extension, a two storey extension normally leaves the remainder of the structure requiring some job and, as a result of its size, this might imply the re-development of the entire house - which is why they can be really costly. Several of the other influencing elements that can have large influence on a two storey house extension cost includes: your place, the size of the construct, intricacy of the layout (anything past the common build will usually require even more experience and time), the glazing to be included (the more the glass made use of in the task, the much more the material cost), along with the team used.

Average House extensions cost in Diss

The regular cost of House extensions are £42,500 in Diss. Costs vary based upon the materials and the company picked. The upper price range can be as high as £56,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£32,334

Avg. price

Avg. price
£42,500

Avg. price high

Avg. price high
£56,000

£56500

£42375

£28250

£14125

£0

Prices based on actual House extensions costs for Diss, as reported by local LeadsDoWork members.

House extensions installation cost in Diss 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 Diss in May 2026

545

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2

Requests for House extensions quotations in Diss in May 2026. 0% change from April 2026.

90

Requests for House extensions quotations in Norfolk in May 2026. 29% change from April 2026.

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

House extensions searches in cities and towns near Diss May 2026

20

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Diss

Diss is an English market community as well as electoral ward in the East Anglian region of Norfolk, near the border with Suffolk. It had a population of 7,572 in 2011. Diss train station gets on the Great Eastern Main Line from London to Norwich. The community depends on the valley of the River Waveney, round a mere covering 6 acres (2.4 ha) and also as much as 18 feet (5.5 m) deep, although there is one more 51 feet (16 m) of mud. The town takes its name from dic an Anglo-Saxon word meaning either ditch or embankment. Diss has a variety of historic buildings, consisting of an early 14th-century parish church as well as an 1850s corn exchange still in operation. Four miles east of Diss is the 100th Bomb Group Memorial Museum at the previous RAF Thorpe Abbotts landing strip. In March 2006, Diss came to be the 3rd community in the UK to join Cittaslow, a global organisation promoting the concept of "Slow Towns". However, it has actually since left this effort.

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Similar Customer Enquiries for House extensions in Diss

30 Jul

House Extensions

Diss, Eye - IP21

Enquiry from: Brian H

Start Date: Immediate

2 separate extensions. 1} single storey extension, pitched roof, 5mtr x 5mtr , bedroom wit he suite and dressing room, windows and patio door. 2} single storey extension, lantern style roof, 7mtr x 5 ...

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07 Apr

House Extensions

Diss - IP22

Enquiry from: Mandy B

Start Date: Less than one month

Are you the property owner: Owner of the property Property Type: Semi detached How many bedrooms does the property have: 3-4 Bedrooms Other Forms: 17, 45 Agreed to recieve quotes for selected product...

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13 Feb

House Extensions

Diss - IP22

Enquiry from: CHris H

Start Date: 1 to 3 months

6x4.4m pictched roof kithen extension with steel frame. Existing utility room insulated downstairs toilet made into a wet room. Are you the property owner: Owner of the property Property Type: Detac...

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20 Mar

House Extensions

Diss - IP22

Enquiry from: Gordon W

Start Date: Immediate

Single storey addition to side of house connected by door access where existing window is located. Approx dimensions 18'9'' X 14' French doors to one end, one window to opposite end. Possible timb...

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07 Nov

House Extensions

Diss - IP22

Enquiry from: Alan W

Start Date: Immediate

In 1999 you built a bungalow at the above address. I am considering buying the property but want to add an extension to the east side by adding an extra bedroom with en-suite 15ft x 13ft approx. Can y...

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03 Aug

House Extensions

Diss - IP22

Enquiry from: PETER B

Start Date: Immediate

EXTENSION TO OUR BUNGALOW - TO EXTEND MAIN BEDROOM AND BUILD AN EN SUITE 4 PIECE BATHROOM

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17 Jun

House Extensions

Diss - IP22

Enquiry from: Georgina G

Start Date: Immediate

We want to put a bathroom in a upstairs bedroom and need to know how to ensure the floor will support a bath . Are you the property owner: Owner of the property Property Type: Detached

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06 May

House Extensions

Diss, Eye - IP21

Enquiry from: Sean R

Start Date: Immediate

Build a 2nd floor onto existing ground floor extension, with pitch roof to go into existing house roof at 90 degrees. This will increase the bedroom sizes

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18 Feb

House Extensions

Diss - IP22

Enquiry from: Donna E

Start Date: Immediate

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Detached, Work description: single storey extension to rear and side of property. To enlarge living room and...

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02 Sep

House Extensions

Norwich - NR15

Enquiry from: Matthew B

Start Date: Immediate

customer in norwich areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms and email at 02/09/2021 06:00.please call to arrange...

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09 Mar

House Extensions

Bungay - NR35

Enquiry from: Clifford T

Start Date: Immediate

single story extension, and reconfigure rooflin e , drainage for bathroom. are you the property owner: owner of the property property type: detached looking for: single storey extension do you have ...

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08 Oct

House Extensions

Eye - IP23

Enquiry from: Danielle B

Start Date: Immediate

2 story pitched roof extension 2.8m x 6m on the side of our house. customer is currently in the process of looking for quotes to add a double storey extension to their property. are you the property ...

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25 Feb

House Extensions

Saxmundham - IP17

Enquiry from: Liz D

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 Ple...

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14 Feb

House Extensions

Eye - IP23

Enquiry from: Danielle B

Start Date: Immediate

looking at putting an extension on the side of the house to create a dinning room with office in it. we would like it to match the house Are you the property owner: Owner of the property Property T...

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14 Feb

House Extensions

Norwich - NR15

Enquiry from: Sam N

Start Date: 1 to 3 months

Hi I am looking to extend my property by knocking through into the garage and extending the lounge. I would also like to build on top of the existing/old garage to create another bedroom upstairs. T...

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07 Jul

House Extensions

Harleston - IP20

Enquiry from: Helen W

Start Date: 1 to 3 months

Single storey, extension for laundry room. We have a standard build bungalow. Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you t...

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11 Mar

House Extensions

Norwich - NR15

Enquiry from: Dorothy H

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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21 Jul

House Extensions

Stowmarket - IP14

Enquiry from: Paul E

Start Date: Immediate

Home Owner Supplied and Fitted Call to Appoint

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27 Apr

House Extensions

Attleborough - NR17

Enquiry from: Safta L

Start Date: Immediate

1bedroom plus bathroom extension Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have planning permission: No Do you have plans dra...

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01 Mar

House Extensions

Stowmarket - IP14

Enquiry from: Sarah P

Start Date: 1 to 3 months

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 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.

What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

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.

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Diss House extensions installers are rated 4.6 out of 5 based on 4 reviews of 18 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Diss House extensions contractors

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