House Extension in city

Find House Extension Prices in city

Home > Extensions & Conversions Projects > House extensions > Coulsdon

House Extension in city

House extension includes a variety of advantages which makes it easy to see why the extension could be a excellent uptick in the potential cost of your building in regards to sales. So if you're looking to construct a new residence extension yet still not encouraged regarding the job, we're right here to aid you. Being fully mindful any home construction job is typically a heavy financial investment, there's a massive requirement to be set on your choice prior to arranging the commencement of any type of job. So are house extensions worth it? Below are some of the top benefits provided by house extensions to help you choose if it's the most ideal route for you.

 

What's Associated with Adding an Extension?

The steps will certainly vary depending upon the scope of your extension, but you can expect some, if not all, of the below to be entailed when adding an extension to your home:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Inspecting your leasehold agreement (if applicable) to ensure you can do what you intend to do.
  3. Hiring an architect  to create the plans, considering your expected usage ( cooking area, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage supplier to let them recognize of the prepared work ahead of it beginning.
  6. Getting parking permits if required for your contractors to guarantee they have very easy access to your residential property.
  7. Seeing to it all planned job falls within allowed allowables.
  8. Clearing up the space as well as excavating if necessary, consisting of the elimination 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 2 storey house extension, after that setting a allocate this task would be a terrific means to begin. Comparable to a back extension, a two storey extension normally leaves the remainder of the building needing some work and also, 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 large effect on a two storey house extension expense includes: your location, the size of the develop, complexity of the style (anything beyond the basic develop will generally need more expertise and time), the glazing to be included (the much more the glass made use of in the project, the extra the product cost), as well as the group made use of.

Average House extensions cost in Coulsdon

The regular cost of House extensions are £51,667 in Coulsdon. 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 Coulsdon, as reported by local LeadsDoWork members.

House extensions installation cost in Coulsdon 2026

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

House extensions on Google in Coulsdon

Google searches that showed Local Quotes, 18 July to 15 October 2026

946

Searches that showed one of our pages for Coulsdon, all services

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

House extensions searches near Coulsdon, 18 July to 15 October 2026

2

Searches that showed our page for Purley

Coulsdon

The town of Coulsdon is positioned around the most southern border of the Croydon Borough and has now a populace of 40,000. The town was packed with housing within the 19th and 20th centuries and in modern times a bypass was opened to further improve the town centre. For all house developments you could be taking into consideration in the near future, be sure you only use vetted and reputable tradesmen for the greatest price for the work you need done.

Looking for House extensions in Coulsdon?

Get free quotes from local builders

Get free quotes

House extensions pros in Coulsdon

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 Extension 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 Extension 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 Extension in Harrow

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

JPA Building Construction LTD

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

Latest review

Rosa S., SE20
5

House Extension 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 and around Coulsdon

27 Mar

House extensions

London - SE19

Enquiry from: Natasha D

Start Date: Immediate

House extensions enquiry

Post a similar request >

02 Nov

House extensions

Weybridge - KT13

Enquiry from: Saverio L

Start Date: Immediate

Hi I would to quote structure timber build including roof and retailing external walls

Post a similar request >

31 Oct

House extensions

Feltham - TW13

Enquiry from: Lubna S

Start Date: Immediate

House extensions enquiry

Post a similar request >

16 Oct

House extensions

London - SW6

Enquiry from: Victor I

Start Date: Immediate

House extensions enquiry

Post a similar request >

07 Oct

House extensions

Croydon - CR0

Enquiry from: Anjana G

Start Date: Immediate

Property: semi detached · When: immediate

Post a similar request >

29 Sep

House extensions

London - SE26

Enquiry from: Jennifer K

Start Date: Immediate

House extensions enquiry

Post a similar request >

29 Sep

House extensions

London - SE13

Enquiry from: Helen M

Start Date: Immediate

House extensions enquiry

Post a similar request >

15 Apr

House extensions

London - SW19

Enquiry from: Intisar C

Start Date: Immediate

House extensions enquiry

Post a similar request >

09 Apr

House extensions

London - SW16

Enquiry from: Andrea C

Start Date: Immediate

House extensions enquiry

Post a similar request >

06 Mar

House extensions

Morden - SM4

Enquiry from: Paul R

Start Date: Immediate

House extensions enquiry

Post a similar request >

02 Mar

House extensions

London - SE9

Enquiry from: Amir A

Start Date: Immediate

House extensions enquiry

Post a similar request >

22 Feb

House extensions

London - SE25

Enquiry from: Zack K

Start Date: 1 to 3 months

Sip construction for wraparound kitchen extension project with planning permission granted and structural & building regulations drawings available/in place

Property: terrace · When: 1-3 months

Post a similar request >

20 Jan

House extensions

South Croydon - CR2

Enquiry from: Richard H

Start Date: Immediate

House extensions enquiry

Post a similar request >

20 Jan

House extensions

Welling - DA16

Enquiry from: Marlon M

Start Date: 1 to 3 months

Property: terrace · When: 1-3 months

Post a similar request >

19 Nov

House extensions

Hounslow - TW3

Enquiry from: Sheldon R

Start Date: Immediate

House extensions enquiry

Post a similar request >

16 Oct

House extensions

London - SE25

Enquiry from: Zack K

Start Date: Immediate

Ground floor wraparound extension

Post a similar request >

Advertisement

Local & reliable builders near me

Tell us about your house extensions project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Coulsdon

Get free, no-obligation local house extensions quotes from 4 verified builders working in Coulsdon.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

We haven't decided yet

We haven't decided yet

Helped find a good company without ...

Helped find a good company without all the ringing around

Simple process which gets you resul ...

Simple process which gets you results! Well done.

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.

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.

are house extensions worth it?

Often referred to by many as the holy grail of home improvements, house extension comes with a wide range of benefits which makes it easy to see why the extension could be a great uptick in the potential price of your property in terms of sales. So if you’re looking to build a new home extension but still not convinced about the project, we’re here to help you. Being fully aware any home construction work is usually a heavy investment, there’s a huge need to be set on your decision before scheduling the commencement of any work. So are house extensions worth it? Below are some of the top benefits offered by house extensions to help you decide if it’s the most suitable route for you.

• Add To Your Home’s Value

Building an home extension is a great way to add value to your home before selling. Increasing the living space of your home is an incredible appeal to many buyers which significantly increases your property’s total value. However, you must ensure that the extension is impressively designed using top quality materials in order to generate more value.

• Good Alternative To House Moving

The most common reason for moving is usually due to a lack of sufficient space, but with house prices steadily on the increase a cost effective alternative is highly sought after. This alternative is house extension which creates more space for the household to spread out and have more privacy.

• You May Not Require A Planning Permission

You can extend your house and still not need to apply for a planning permission. To achieve this, simply comply with the laid down rules set under the permitted development rights.

• Extra Living Space

If you fill you’re starting to outgrow your existing structure and do not buy into the idea of moving, then your best bet might just be to extend 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.

House extensions

Other Top Projects in Coulsdon

Are you a builder in Coulsdon?

We can help you get more house extensions work with our qualified job leads and boost your business.

Join today