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House Extension in city

House extension includes a vast array of advantages which makes it very easy to see why the extension could be a terrific uptick in the possible cost of your building in terms of sales. So if you're aiming to develop a brand-new residence extension yet still not convinced about the job, we're right here to help you. Being fully mindful any type of residence building work is usually a hefty financial investment, there's a huge requirement to be set on your decision prior to scheduling the start of any job. So are house extensions worth it? Below are some of the top benefits supplied by house extensions to help you determine if it's one of the most ideal course for you.

 

What's Associated with Including an Extension?

The steps will vary relying on the scope of your extension, yet you can expect some, if not all, of the below to be included when including an extension to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Examining your leasehold contract (if applicable) to see to it you can do what you intend to do.
  3. Employing an architect  to prepare the plans, considering your intended usage ( cooking area, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage supplier to let them know of the planned work ahead of it starting.
  6. Getting auto parking permits if required for your professionals to ensure they have easy accessibility to your home.
  7. Seeing to it all planned work drops within allowed allowables.
  8. Cleaning the space and also excavating if needed, consisting of the elimination of trees.
  9. Building job can begin.

 

What is the expense of a house extension in city?

If you're taking into consideration adding a two floor house extension, after that establishing a budget for this project would be a fantastic means to get going. Similar to a rear extension, a two storey extension generally leaves the rest of the building requiring some job and also, as a result of its size, this may imply the re-development of the whole house - which is why they can be really expensive. Some of the various other influencing aspects that can have huge effect on a two floor house extension cost consists of: your place, the dimension of the develop, intricacy of the layout (anything beyond the conventional build will typically need more experience and time), the glazing to be integrated (the much more the glass used in the task, the more the product price), along with the group made use of.

Average House extensions cost in Boston

The regular cost of House extensions are £41,250 in Boston. 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 Boston, as reported by local LeadsDoWork members.

House extensions installation cost in Boston 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 Boston in April 2025

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Requests for House extensions quotations in Lincolnshire in April 2025. -43% change from March 2025.

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Boston

Boston is the biggest town in the borough of identical name, having a populace of 35,124 people. This accounts for over half of the borough's total population, which stands at 64,600. For any property improvements you could be considering inside the East Midlands town, make sure you look at quotations from vetted and respected specialists in the area to get the right price for the work.

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Similar Customer Enquiries for House extensions in Boston

14 May

House Extensions

Boston - PE21

Enquiry from: Edana M

Start Date: Immediate

customer made an online enquiry for house extension and confirmed on telephone, sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to quote. ar...

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23 Jul

House Extensions

Boston - PE20

Enquiry from: Karen R

Start Date: Immediate

are you the property owner: owner of the property other forms: house extension agreed to receive quotes for selected products: yes please call to appoint

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15 Feb

House Extensions

Boston - PE22

Enquiry from: Craig P

Start Date: 1 to 3 months

i would like a 3m x 3m extention, 2 walls onto existing corner of house. with a flat roof, 1 bi fold door and 1 1.2m window to side. Take out existing wall (single story) of house to make 1 large roo...

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14 Nov

House Extensions

Boston - PE21

Enquiry from: Patrick C

Start Date: Immediate

Above garage & utility room to be extended upwards to full height of house

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05 Jul

House Extensions

Boston - PE22

Enquiry from: Laura V

Start Date: Immediate

Home owner Side extension 3.5 x 5m to attach to an existing side extension - create more living space Assist with plans and Planning permission. Please Contact to Appoint *

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06 Apr

House Extensions

Boston - PE22

Enquiry from: Laura V

Start Date: Immediate

Property buyer With access to the property Side extension 3.5 x 5m to attach to an existing side extension - create more living space Assist with plans and Planning permission. Please Contact to Ap...

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10 Mar

House Extensions

Boston - PE22

Enquiry from: Laura V

Start Date: Immediate

Side extension 3.5 x 5m to attach to an existing side extension

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16 Aug

House Extensions

Boston - PE22

Enquiry from: Christine M

Start Date: 1 to 3 months

Home Owner Double storey extension to include hallway and stairs. Living room with double doors opening onto the garden. Two double bedrooms upstairs one of which to have an en suite. A sperate bat...

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11 May

House Extensions

Boston - PE21

Enquiry from: William M

Start Date: 3+ months

3x4m rear extension +4x5m side extension + garage Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permiss...

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06 May

House Extensions

Boston - PE22

Enquiry from: Lynne K

Start Date: 3+ months

extension to kitchen Are you the property owner: Owner of the property Property Type: Detached Looking For: Single storey extension Do you have planning permission: No Would you require assistanc...

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16 Feb

House Extensions

Boston - PE20

Enquiry from: Dave K

Start Date: 1 to 3 months

Homeowner Extension to kitchen - would like build quotes 1 storey extension Needs assistance with plans Supplied and installed Please contact to appoint *

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03 Feb

House Extensions

Boston - PE20

Enquiry from: Nicola L

Start Date: Immediate

Home owner small single storey extension to rear and garage conversion call 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 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.

when do you need planning permission for a house extension?

If you’re planning on adding a house extension to your property, you’d probably be worried about whether or not your proposed extension would require a planing permission. Well, it may be relieving to know that not every house extension project would require a formal consent, and in fact, several extensions are covered by the permitted development rights. Not only can this save you a considerable amount of time especially at the project’s planning phase, but it’ll also save you money on the application fee. In the UK, single storey extensions to the house’s rear can be 3 metres deep for both semi detached houses and terraces or 8 metres deep for detached homes.

So how do you know when you’d require a planning permission for your home extension? Well, if your extension plan fits these criteria explained below, then your project is most likely going to be allowable as a permitted development.

• Extensions, which includes previous additions, must not go beyond half of the original house’s total surrounding land area.

• The main elevation, or side elevation where it fronts the highway, must not be extended forward.

• For single storeys, the rear additions must not extend more than the original house’s rear by more than 3 metres in both semi attached homes and terraces (4 metres for detached houses).

• Extensions to the side must be a single storey with a height not exceeding 4 metres and not going beyond 50% of the original house’s width.

• Extensions hat within 2 metres of a boundary should have a eaves height not more than 3 metres.

• Multi storey addition must not extend beyond the original house’s rear wall by a maximum of 3 metres or 7 metres of the boundary opposite the rear wall.

• Permitted development rights do not apply in listed buildings or designated areas.

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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