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House Extension in city

House extension includes a vast array of benefits that makes it very easy to see why the extension could be a great uptick in the possible price of your home in terms of sales. So if you're seeking to build a new house extension however still not persuaded concerning the task, we're below to aid you. Being totally aware any home building and construction work is usually a hefty financial investment, there's a big demand to be set on your choice before setting up the commencement of any kind 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 course for you.

 

What's Associated with Adding an Extension?

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

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold contract (if appropriate) to make certain you can do what you wish to do.
  3. Employing an architect  to draw the plans, considering your expected use ( cooking area, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage company to let them understand of the intended job ahead of it beginning.
  6. Obtaining auto parking allows if needed for your contractors to guarantee they have simple access to your property.
  7. Making sure all planned work falls within permitted allowables.
  8. Clearing the area and also excavating if required, including the elimination of trees.
  9. Structure work can begin.

 

What is the price of a house extension in city?

If you're taking into consideration adding a two floor house extension, then establishing a allocate this job would be a wonderful means to start. Similar to a rear extension, a two storey extension typically leaves the remainder of the structure requiring some job and also, due to its size, this may indicate the re-development of the entire house - which is why they can be really pricey. A few of the various other influencing aspects that can have large effect on a two floor house extension price includes: your place, the size of the construct, intricacy of the design (anything beyond the conventional construct will generally call for more expertise as well as time), the glazing to be integrated (the much more the glass used in the project, the much more the material cost), as well as the group made use of.

Average House extensions cost in Bromley

The regular cost of House extensions are £53,000 in Bromley. Costs vary based upon the materials and the company picked. The upper price range can be as high as £75,600. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£32,400

Avg. price

Avg. price
£53,000

Avg. price high

Avg. price high
£75,600

£76100

£57075

£38050

£19025

£0

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

House extensions installation cost in Bromley 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 Bromley in April 2025

1,814

Requests for quotations in Bromley in April 2025

8

Requests for House extensions quotations in Bromley in April 2025. 0% change from March 2025.

120

Requests for House extensions quotations in Kent in April 2025. 9% change from March 2025.

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

House extensions searches in cities and towns near Bromley April 2025

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Requests for quotations in Bromley in April 2025

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Requests for quotations in Keston in April 2025

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Bromley

The large suburban area of Bromley is located in east London and it is traditionally a market town. It possesses a populace of more than 50,000 and it's known as one of London's primary metropolitan centres. Bromley quickly increased in population right after the Second World War and formed a part of Greater London after suburban expansion within the city. For just about any home upgrades you're considering, ensure you just use vetted companies in your area to get the best value for money plus a quality finish.

Looking for House extensions in Bromley?

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House extensions pros in Bromley

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

Patricia Z., SE21
5

House Extensions in London

Great consultation by Catalin Spent a lot of time with us understanding the project and various options.

Options Home Improvements LTD

1 review(s)
Based: in Kent, ME8 0DB

Here at Options Home Improvements we specialize is the bespoke design & installation of PVCu & Aluminium, windows and doors, orangeries & conservatories in Gillingham, Kent & South East area. Options Home Improvements was started due to the seemi...

Latest review

Lisa V., ME1
5

House Extensions in Rochester

I haven't had the extension built yet but am planning to use them

Nicholas James Construction

7 review(s)
Based: in Bromley, BR1 3AX

From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.

Latest review

Jagdish K., HA3
5

House Extensions in Harrow

Absolutely pleasant appointment. Very patient and polite, listened carefully to detail and more of my background and his...

LW Building Service

2 review(s)
Based: in London, SE20 8AG

Latest review

Rosa S., SE20
3

House Extensions in London

I have not yet finalised quotation

Similar Customer Enquiries for House extensions in Bromley

18 Sep

House Extensions

Bromley - BR1

Enquiry from: David R

Start Date: Immediate

I'm looking for a 3m deep, 5.2M wide extension with a roof light, to create one bedroom and small dining room.

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13 May

House Extensions

Bromley - BR1

Enquiry from: Marcelo M

Start Date: Immediate

mr requested quotes for house extension from a builder around bromley. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is ...

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02 Feb

House Extensions

Bromley - BR1

Enquiry from: Gary M

Start Date: Immediate

side extension bungalow and into loft conversion width 21ft by 50ft length. are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no d...

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19 Jan

House Extensions

Bromley - BR1

Enquiry from: Gary M

Start Date: Immediate

side extension bungalow and into loft conversion width 21ft by 50ft length. are you the property owner: owner of the property looking for: single storey extension do you have planning permission: no d...

Post a similar request >

22 Sep

House Extensions

Bromley, Keston - BR2

Enquiry from: Surlu R

Start Date: Immediate

large garden outbuilding 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 plans drawn up: ...

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07 Jun

House Extensions

Bromley - BR1

Enquiry from: Craig R

Start Date: Immediate

Double storey extension, flat roof, 2 bathrooms, kitchen and a clock room toilet.

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27 Oct

House Extensions

Bromley, Keston - BR2

Enquiry from: ROWENA D

Start Date: Immediate

4m x 4m extension

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19 Feb

House Extensions

Bromley, Keston - BR2

Enquiry from: Doug C

Start Date: Immediate

A ground floor extension to the back of the house. I am not sure of exact measurements but would guess 10 metres wide by 5 out.

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04 Feb

House Extensions

Bromley - BR1

Enquiry from: Lyubomir Y

Start Date: Immediate

Building a rear Extension 3,5m length by 5 m wide. Removing existing chimney breast in the Living room and putting supporting beam. Creating internal small shower/toilet room on the ground floor. Unde...

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03 Jan

House Extensions

Bromley, Keston - BR2

Enquiry from: Chris H

Start Date: Immediate

*Homeowner House extension Please call to appoint

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27 Dec

House Extensions

Bromley - BR1

Enquiry from: Niral P

Start Date: Immediate

BUILDING CONTROL SERVICES: CHANGE OF USE OF AN EXISTING GARAGE WITH SINGLE AND DOUBLE STOREY SIDE EXTENSION, SINGLE STOREY REAR EXTENSION, LOFT CONVERSION AND INTERNAL STRUCTURAL ALTERATIONS IN ORDE...

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12 Oct

House Extensions

Bromley - BR1

Enquiry from: Dominic C

Start Date: Immediate

Submit your free quote for rated tradespeople

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13 Aug

House Extensions

Bromley - BR1

Enquiry from: Victoria A

Start Date: Less than one month

Quote for building a studio flat Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: Yes Do you requi...

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20 Jun

House Extensions

Bromley, Keston - BR2

Enquiry from: Mrs P

Start Date: 1 to 3 months

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: 45 Agreed to recieve quotes for selected products: Y...

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19 Mar

House Extensions

Bromley, Keston - BR2

Enquiry from: Shafique B

Start Date: Immediate

Submit your free quote for rated tradespeople

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23 Feb

House Extensions

Bromley - BR1

Enquiry from: Toolsie M

Start Date: 1 to 3 months

Remove internal load bearing wall between kitchen and lounge and install rsj of length 4mtrs including planning application , structural cals , A total cost of the job

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12 Feb

House Extensions

Bromley - BR1

Enquiry from: Husseyin B

Start Date: Immediate

Home Owner Call to Appoint

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10 Feb

House Extensions

Bromley - BR1

Enquiry from: Toni W

Start Date: 1 to 3 months

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...

Post a similar request >

08 Feb

House Extensions

Bromley - BR1

Enquiry from: Cliff O

Start Date: 1 to 3 months

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: 3 Other Forms: 45, 64 Agreed to recieve quot...

Post a similar request >

01 Feb

House Extensions

Bromley - BR1

Enquiry from: Toolsie M

Start Date: Immediate

to remove two internal walls of 3mts and install I beams one beam to join to the other as it two walls at 90 degress

Post a similar request >

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FAQs

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.

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.

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.

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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