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House Extension in city

House extension comes with a variety of benefits which makes it simple to see why the extension could be a fantastic uptick in the potential cost of your building in terms of sales. So if you're seeking to construct a new house extension but still not encouraged about the job, we're right here to assist you. Being totally aware any kind of home building and construction job is normally a heavy investment, there's a massive need to be set on your choice prior to arranging the start of any type of work. So are house extensions worth it? Below are some of the top benefits used by house extensions to aid you decide if it's the most ideal course for you.

 

What's Involved in Adding an Extension?

The actions will certainly differ depending on the range of your extension, yet you can anticipate some, if not all, of the listed below to be entailed when including an expansion to your house:

 

  1. Acquiring Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Examining your leasehold contract (if appropriate) to ensure you can do what you want to do.
  3. Enlisting an architect  to draw up the plans, considering your intended usage ( kitchen area, shower room, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance supplier to let them recognize of the prepared job ahead of it beginning.
  6. Obtaining parking allows if needed for your service providers to guarantee they have easy access to your property.
  7. Seeing to it all prepared work falls within permitted allowables.
  8. Cleaning the area as well as excavating if necessary, including the elimination of trees.
  9. Building job can begin.

 

What is the cost of a house extension in city?

If you're thinking about adding a 2 floor house extension, then establishing a allocate this job would certainly be a excellent way to get going. Comparable to a rear extension, a two floor extension typically leaves the remainder of the building needing some job and, due to its dimension, this may suggest the re-development of the entire house - which is why they can be very expensive. A few of the various other affecting variables that can have big impact on a 2 storey house extension price includes: your area, the size of the build, complexity of the layout (anything beyond the typical build will normally need more know-how and time), the glazing to be incorporated (the extra the glass made use of in the project, the much more the material price), as well as the team made use of.

Average House extensions cost in Belvedere

The regular cost of House extensions are £51,875 in Belvedere. Costs vary based upon the materials and the company picked. The upper price range can be as high as £72,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£34,250

Avg. price

Avg. price
£51,875

Avg. price high

Avg. price high
£72,000

£72500

£54375

£36250

£18125

£0

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

House extensions installation cost in Belvedere 2025

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

House extensions searches in April 2025

House extensions Projects in Belvedere in March 2025

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2

Requests for House extensions quotations in Belvedere in March 2025. 0% change from February 2025.

120

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

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Belvedere

Belvedere is a town of south east London, England within the London Borough of Bexley. It's situated south east of Thamesmead and is located about 12 miles (19 kilometres) southeast of Charing Cross. Belvedere was in Kent, and in terms of the postal system, remains so. It formed part of the Municipal Borough of Erith ahead of 1965 and improvement work occurred prior to the Second World War, with significant renovation after the Blitz. Despite this, Upper Belvedere and the Village still retains a considerable amount of its Victorian and Edwardian charm and character. Upper Belvedere boasts a church and a number of Victorian and Edwardian brick villas. It boasts numerous standard pubs, restaurants and retail outlets. These consist of The Eardley Arms on Woolwich Road, The Vic on Victoria Street, The Royal Standard in the centre of the village as well as the Fox in Belvedere village. Upper Belvedere also boasts a large sized park and a library that was under threat of getting closed as a result of local government cuts. Thankfully closure threats have been averted as a result on the efforts with the local neighbourhood. A new 'Splash Park', which opened its doors in 2005, was a popular addition to the village, having been created on the site of an old Victorian paddling pool. The splash park retains some of the original paddling pool architecture. Between 1898 and 1961, Callender's Cable Works, at the Erith Works, was patron to Callender's Cableworks Band, an amateur brass band made up of employees of the company. The band was a successful broadcaster on BBC Radio in the 1920s and 1930s. For all of your residence upgrades, be sure that you pick trusted professionals in Belvedere to ensure you get an excellent quality service.

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House extensions pros in Belvedere

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...

Similar Customer Enquiries for House extensions in Belvedere

06 Apr

House Extensions

Belvedere - DA17

Enquiry from: Karmen H

Start Date: 1 to 3 months

Approx 3 x 4 bavk extension, already concreted grounds. 3 skylights and two single doors. Customer is currently in the process of looking for quotes to add a Single storey extension to their property...

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27 Jun

House Extensions

Belvedere - DA17

Enquiry from: Eve B

Start Date: Less than one month

Property owner House extensions Supplied and fitted Please call to appoint

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23 Jun

House Extensions

Belvedere - DA17

Enquiry from: Eve B

Start Date: Less than one month

Extension to side of kitchen

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18 Jan

House Extensions

Belvedere - DA17

Enquiry from: Martin B

Start Date: Immediate

Double extension to side of house. approx 8' x 25' 1st floor: Extra double bedroom (new bedroom door and windows) with En-suite (this room is next to an existing bathroom) Bathroom Extended wit...

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22 Dec

House Extensions

Belvedere - DA17

Enquiry from: M O

Start Date: Immediate

Rear extention

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23 Feb

House Extensions

Belvedere - DA17

Enquiry from: Villy V

Start Date: 1 to 3 months

Rear extension by 4.87m x 4.26m over the current sewerage drains Are you the property owner: Owner of the property Looking For: Single storey extension Property Type: Semi detached Do you have p...

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21 Jul

House Extensions

London - SW5

Enquiry from: Arnab D

Start Date: Immediate

customer in london areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via sms at 21/07/2023 22:07.please call to arrange appointmen...

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16 Mar

House Extensions

London - SW11

Enquiry from: Will E

Start Date: Immediate

Extend out back, make kitchen/living space with bifold doors onto garden. Extend on top of this and add a bathroom. Please would you mind giving me a quick call tomorrow to discuss?

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21 Feb

House Extensions

London - SW11

Enquiry from: Will E

Start Date: Immediate

Extend out back, make kitchen/living space with bifold doors onto garden. Extend on top of this and add a bathroom. Please would you mind giving me a quick call tomorrow to discuss?

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25 Aug

House Extensions

London - SW18

Enquiry from: Len D

Start Date: Immediate

a lean to extension 3000mmx 6 000m i have the plans drawn up customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner:...

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21 Apr

House Extensions

London - SW17

Enquiry from: Daniel N

Start Date: 1 to 3 months

customer in london 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 21/04/2021 14:04.please call to arrange ...

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16 Dec

House Extensions

London - SW17

Enquiry from: Syed H

Start Date: Immediate

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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12 Feb

House Extensions

London - SW18

Enquiry from: Laurie M

Start Date: Immediate

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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19 Nov

House Extensions

London - W2

Enquiry from: Pascal I

Start Date: Immediate

Homeowner Please contact to appoint

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03 Aug

House Extensions

London - SW17

Enquiry from: Alan F

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Home Owner Call to Appoint

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04 Jun

House Extensions

London - SW17

Enquiry from: Robert R

Start Date: Immediate

Looking For: Double storey extension Do you have planning permission: Yes Are you the property owner: Relative of Owner Property Type: Terrace Do you have plans drawn up: Yes Do you require Plumbing W...

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01 May

House Extensions

London - NW8

Enquiry from: Arvind M

Start Date: Immediate

Extension of 2 storey terraced house to create a new 2 bed flat and renovation of sho front Are you the property owner: Owner of the property Property Type: Terrace Looking For: Double storey extensio...

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09 Apr

House Extensions

London - NW3

Enquiry from: Tim H

Start Date: Immediate

Looking to infill an existing top floor mezzanine level, creating 11sqm of extra floor area and 2 sqm roof terrace. Amending roof pitch to create mansard roof and create extra internal head height. A...

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18 Mar

House Extensions

London - NW3

Enquiry from: Tim H

Start Date: Immediate

Looking to infill an existing top floor mezzanine level, creating 11sqm of extra floor area and 2 sqm roof terrace. Amending roof pitch to create mansard roof and create extra internal head height. A...

Post a similar request >

26 Feb

House Extensions

London - SW17

Enquiry from: Helen L

Start Date: Immediate

rear extension about 3.5 x 4.8m and new kitchen

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FAQs

Should I use concrete or timber footings?

For 2 metre solid fences it’s recommended to use concrete posts to support each panel. For smaller 1 metre fences or for picket fences with gaps between each timber piece you can use timber posts. A fencing contractor will be able to advise you on the best materials from the length and requirements of a new fence.

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 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.

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Belvedere House extensions installers are rated 4.4 out of 5 based on 9 reviews of 114 pros.
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