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House Extension in city

House extension includes a wide variety of benefits which makes it very easy to see why the extension could be a wonderful uptick in the potential price of your building in regards to sales. So if you're aiming to develop a new house extension but still not persuaded regarding the job, we're below to assist you. Being completely mindful any kind of home building work is usually a hefty investment, there's a massive need to be set on your choice prior to setting up the start of any type of job. So are house extensions worth it? Below are several of the leading advantages offered by house extensions to aid you decide if it's the most ideal course for you.

 

What's Associated with Including an Extension?

The actions will differ depending upon the scope of your extension, yet you can expect some, otherwise all, of the below to be involved when adding an extension to your house:

 

  1. Obtaining Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if relevant) to see to it you can do what you wish to do.
  3. Employing an architect  to draw up the plans, considering your planned use (kitchen, washroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance service provider to allow them know of the planned job ahead of it beginning.
  6. Getting car park allows if required for your contractors to guarantee they have easy accessibility to your residential building.
  7. Making sure all prepared job drops within permitted allowables.
  8. Cleaning the space and also excavating if essential, including the removal of trees.
  9. Building work can begin.

 

What is the cost of a house extension in city?

If you're taking into consideration including a two storey house extension, then setting a allocate this job would be a terrific method to begin. Comparable to a back extension, a 2 storey extension usually leaves the remainder of the structure needing some work and, due to its size, this may suggest the re-development of the whole house - which is why they can be very expensive. Some of the other influencing aspects that can have huge effect on a 2 storey house extension expense consists of: your place, the dimension of the construct, complexity of the style (anything past the common build will usually need more knowledge and time), the glazing to be integrated (the more the glass made use of in the project, the a lot more the product expense), in addition to the group used.

Average House extensions cost in Dorchester

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

House extensions installation cost in Dorchester 2026

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

House extensions searches in September 2026

House extensions Projects in Dorchester in August 2026

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Requests for House extensions quotations in Dorchester in August 2026. 0% change from July 2026.

90

Requests for House extensions quotations in Dorset in August 2026. 0% change from July 2026.

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Dorchester

Dorchester is a historical market town and the county of Dorset in England. It is situated in between the towns of Poole and Bridport on the A35 trunk route. Located on the banks of the River Frome, in the Frome Valley, it is south of the Dorset Downs and to the north of the South Dorset Ridgeway separating the area from Weymouth. The town centre is approximated to be between 55 and 80 metres above sea level on steady sloping ground by the River Frome's south bank. It is almost 7 miles north of Weymouth, 18 miles from Yeovil in Somerset, and 20 miles west of Poole. The land to the south and west of the town comes under the Dorset Area of Outstanding Natural Beauty. In accordance with the 2011 Census, Dorchester has a population of 19060, with 8449 households. Within this population, 48.35 percent of residents were male and 51.6 per cent were female. A little under the 18.9 per cent for England overall, 17 per cent of residents were under 16 years old, and 22.4 percent of residents were over 65 years old, being marginally above the 16.4 per cent for England as a whole. Research conducted for 2012 revealed that there were 17500 people employed in Dorchester, of which 51 per cent were working full-time. There is a total of 6 commercial estates in Dorchester, which consists of The Grove Trading Estate, Poundbury Trading Estate, Marabout Barracks, Great Western Centre, Railway Triangle and Casterbridge Industrial Estate. The Brewery Square redevelopment project has made it possible for local and national stores, restaurants and bars to be in simple reach of the town's inhabitants. For all your house upgrades, ensure to make use of trustworthy contractors in Dorchester to make certain of quality.

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Similar Customer Enquiries for House extensions in Dorchester

02 Jul

House Extensions

Dorchester - DT1

Enquiry from: CLINTON B

Start Date: Less than one month

customer made an enquiry for house extension and confirmed on the local quotes site they would like quotes from a builder.mr lives in the dorchester area and would like a call to discuss options.see b...

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13 Jul

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Dorchester - DT2

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side and rear extension, pitched roof (side ) and flat roof (rear) one bedroom and one bedroom with en-suite, kitchen extension to the rear. are you the property owner: owner of the property property...

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Dorchester - DT2

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Are you the property owner: Owner Have you considered getting your windows replaced to match a new conservatory: Yes How many windows are you looking for: 5+ Other Forms: 17, 45 Agreed to recieve quo...

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15 Oct

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Dorchester - DT2

Enquiry from: Craig W

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Single story extension 9m x 5.6m to Bungalow with Pitched Roof (Trusses). Comprising: Master Bedroom with Wet Room, walk-in wardrobe, new front door entrance and Garage. 1m foundation and slab slight ...

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13 Sep

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Dorchester - DT2

Enquiry from: Ruby L

Start Date: 1 to 3 months

Homeowner Please contact to appoint Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property P...

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16 May

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Dorchester - DT2

Enquiry from: Jeanette D

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Kitchen extension to rear 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 have pla...

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29 Jan

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Dorchester - DT1

Enquiry from: Martin D

Start Date: 3+ months

A 7m x3m 2 storey extension to the rear with flat fibreglass roof Are you the home ower? yes Property Style? semi detached Single or Double Storey Extension? double Planning permission ap...

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02 Sep

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Dorchester - DT2

Enquiry from: David J

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Ground floor extension to kitchen providing bathroom and garden room with balcony above

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Enquiry from: Suzanne C

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Can you please contact me regarding an extension Homeowner Please contact to appoint

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Roof extension with 2 dormers - built over existing grd floor extension Side extension to include -Bedroom with en-suit; utility room; garden room(total floor area 52 sq meters) singl level

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Dorchester - DT2

Enquiry from: Joy G

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To build a timber framed extension single story onto existing lounge 15ft 8ins width and the actual length of extension 10ft. Folding out patio doors 8ft and a fireplace. Are you the property owner...

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03 Feb

House Extensions

Dorchester - DT2

Enquiry from: Dave W

Start Date: 3+ months

Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Semi detached, Work description: Remove existing flatroof extension, and build 2 storey rear extension, ...

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11 Mar

House Extensions

Dorchester - DT2

Enquiry from: Steve G

Start Date: 1 to 3 months

two storey extension and renovation of the cottage - planning applied for Homeowner Will need assistance with planning permission Plans will need to be drawn up Please contact to appoint

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FAQs

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.

how to finance a house extension?

Do you want to beautify and increase the value of your home? If yes, a refurb and house extension is definitely a great option to consider. Depending on your home extension project, the value that’ll be added to your home’s resale value varies. However, the cost of completing a house extension project can be huge, so you just might want to consider your financing options. Fortunately, there are various options through which your house extension project can be funded with each having its own pros and cons. Your specific circumstances will determine the one that’s going to work best for you, so let’s take a look at some of the best options to help you fund your project.

• Home Remortgaging

The process whereby a mortgage is transferred from one provider to the other is known as remortgaging. This is usually done to generate funds for a project by entering a more lengthy repayment term commitment when switching. If you want to raise your funds in a quick manner, this process works best.

• Savings

This is a good reason to cultivate a good saving habits. If you’ve been able to save up some mega bucks then you’d probably won’t have to borrow money to finance your house extension.

• Unsecured Loans

If you do not buy into the idea of borrowing more against your property, you may just be able to apply for an unsecured loan especially if you have a good credit record. A secured loan makes use of collaterals like a car or house to serve as a cover for the lender, meanwhile an unsecured loan is based mainly on the credit managing history of the borrower.

• Credit Card

There are some great benefits that comes with financing your small or medium scale extension project with your credit card. Not only does it offer some real lifeline if problems arise during the project, but you can also avoid paying excessive interest on the investment by ensuring your deal has a 0% introductory rate.

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 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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