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House extension comes with a vast array of advantages that makes it simple to see why the extension could be a wonderful uptick in the potential price of your home in terms of sales. So if you're wanting to construct a new residence extension however still not encouraged concerning the job, we're right here to assist you. Being totally mindful any type of home building work is normally a hefty investment, there's a massive need to be set on your choice prior to arranging the beginning of any type of work. So are house extensions worth it? Below are several of the leading advantages provided by house extensions to aid you make a decision if it's the most appropriate route for you.

 

What's Involved in Adding an Extension?

The steps will vary depending on the extent of your extension, yet you can anticipate some, otherwise all, of the below to be included when adding an extension to your residence:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Checking your leasehold arrangement (if applicable) to make sure you can do what you want to do.
  3. Getting an architect  to create the plans, considering your planned use ( cooking area, washroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage carrier to let them recognize of the intended job ahead of it starting.
  6. Getting car park allows if needed for your contractors to ensure they have easy accessibility to your home.
  7. Seeing to it all planned job falls within allowed allowables.
  8. Cleaning the space as well as excavating if essential, consisting of the removal of trees.
  9. Building work can begin.

 

What is the price of a house extension in city?

If you're taking into consideration including a two floor house extension, then establishing a budget for this task would be a fantastic means to get started. Comparable to a back extension, a 2 floor extension generally leaves the remainder of the building requiring some work and also, as a result of its size, this may indicate the re-development of the whole house - which is why they can be very costly. Several of the other influencing factors that can have big influence on a two storey house extension cost includes: your place, the size of the develop, intricacy of the style (anything beyond the conventional build will generally need more competence and also time), the glazing to be integrated (the more the glass utilized in the job, the more the material cost), in addition to the team used.

Average House extensions cost in Anerley

The regular cost of House extensions are £51,667 in Anerley. Costs vary based upon the materials and the company picked. The upper price range can be as high as £73,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£32,000

Avg. price

Avg. price
£51,667

Avg. price high

Avg. price high
£73,000

£73500

£55125

£36750

£18375

£0

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

House extensions installation cost in Anerley 2026

Labour cost £27,000
Material cost £10,500
Waste removal £2,500
Time frame: 10-14 weeks
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House extensions searches in October 2026

House extensions Projects in Anerley in September 2026

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Requests for House extensions quotations in Anerley in September 2026. 0% change from August 2026.

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Requests for House extensions quotations in London County in September 2026. 14% change from August 2026.

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House extensions searches in cities and towns near Anerley September 2026

Anerley

Anerley is a district inside the south east of London in the London Borough of Bromley. It is west of Bromley and it is 7 miles south south-east of Charing Cross. It is the previous site of the Crystal Palace.

Anerley has never been its own independent entity, but always a general area. Ahead of the closure and relocation of the Crystal Palace to Penge Place at the top of Sydenham Hill, Anerley was an empty part of Penge Common that didn't develop till the nineteenth century. In 1827, a Scottish silk manufacturer, William Sanderson, bought land on the former Penge Common, and constructed the very first residence in the district. He named it 'Anerly', which is a Scottish word for 'solitary' or 'only', and the road then became referred to as Anerley Road plus the vicinity.

There are a lot of transport links in Anerley, including 9 bus routes, two A roads, two rail stations and one London Overground station and aTram station at Birkbeck station. Transport for London had proposed the extension of Tramlink services from Harrington Road tram stop to the bus station on Crystal Palace Parade through Anerley Road, but Mayor Boris Johnson cancelled the £170m extension in November 2008.

Notable individuals that lived in Anerley consist of Thomas Crapper, who promoted the flush toilet, in his retirement; Walter de la Mare, famous poet and author of ghost stories; and James Leavey, award-winning Punch magazine columnist.

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House extensions pros in Anerley

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.

Jassi Builders Ltd

2 review(s)
Based: in Hayes, UB4 9YD

Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I have completed all my work on perfect time and leave customers in complete satisfaction. We do all types of loft conversions, exten...

Latest review

Julian F., HP2
4

House Extensions in Hemel Hempstead

No quote received

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

JPA Building Construction LTD

1 review(s)
Based: in Twickenham , TW1 1AG

Latest review

Rosa S., SE20
5

House Extensions in London

Very nice and helpful unfortunately I am looking for a builder who lives nearby my property

Similar Customer Enquiries for House extensions in Anerley

18 Apr

House Extensions

London - SE20

Enquiry from: John A

Start Date: Immediate

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

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04 Oct

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London - SE20

Enquiry from: Jennifer B

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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20 Oct

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Reconfiguration of space to create kitchen diner, and incorporate footprint of two external storage rooms.

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10 Oct

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London - SE20

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ground floor extension to include a kitchen dining area and utility room.

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11 Aug

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London - SE20

Enquiry from: Constance L

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We are looking to extend a property we are in the process of buying in Croydon. We are looking for quote to knock wall through from kitchen to dinning room and extend kitchen out by 2.5 meters with st...

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26 Jun

House Extensions

London - SE20

Enquiry from: Alex H

Start Date: Immediate

A small bathroom extension

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25 May

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London - SE20

Enquiry from: Ruth V

Start Date: Immediate

Rear extension of 18m2 with the purpose to extent kitchen. Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extension Do you have planning permissi...

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16 May

House Extensions

London - SE20

Enquiry from: Mark S

Start Date: Immediate

I am expected to receive planning permission on my extension this week. I therefore am looking for a quotation for the extension. It is a single storey extension of approx. 25sqm with a terrace. ...

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26 Apr

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London - SE20

Enquiry from: Steve W

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quote for extending and converting property to flats

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18 Dec

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Conversion and side extension at property with planning for 4 x 2 bed flats

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02 Oct

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London - SE20

Enquiry from: Rosa S

Start Date: 3+ months

Extension . Area is approx 20 m2

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27 Aug

House Extensions

London - SE20

Enquiry from: Derek A

Start Date: 1 to 3 months

Homeowner House extension 1 storey extension A extension to the back of the house. The extension will form the kitchen dining area and utility room for the washing machine and WC. The extension lea...

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26 Jan

House Extensions

London - SE20

Enquiry from: Rich W

Start Date: 3+ months

Single storey full width, 3m rear extension, double storey plus loft side extension Homeowner Will need assistance with planning permission Plans will need to be drawn up Please contact to appoi...

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FAQs

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.

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.

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 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.

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