House Extension in city

Find House Extension Prices in city

Home > Extensions & Conversions Projects > House extensions > Hillingdon

House Extension in city

House extension features a wide variety of advantages which makes it simple to see why the extension could be a great uptick in the prospective price of your property in regards to sales. So if you're seeking to develop a new residence extension however still not convinced regarding the task, we're here to assist you. Being totally mindful any type of home construction work is normally a hefty financial investment, there's a big requirement to be set on your decision before scheduling the start of any type of job. So are house extensions worth it? Below are a few of the top benefits provided by house extensions to assist you determine if it's the most ideal path for you.

 

What's Involved in Building an Extension?

The steps will certainly differ relying on the extent of your extension, yet you can anticipate some, if not all, of the listed below to be involved when including an extension to your home:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if relevant) to ensure you can do what you intend to do.
  3. Hiring an architect  to create the plans, considering your planned usage ( cooking area, restroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance coverage supplier to allow them know of the prepared job ahead of it starting.
  6. Getting car park permits if needed for your contractors to guarantee they have simple accessibility to your residential property.
  7. Ensuring all planned job drops within permitted allowables.
  8. Clearing up the area as well as digging deep into if needed, including the removal of trees.
  9. Building work can start.

 

What is the cost of a house extension in city?

If you're taking into consideration including a two floor house extension, then setting a budget for this project would be a fantastic means to get started. Similar to a rear extension, a 2 floor extension typically leaves the remainder of the structure needing some job and, as a result of its size, this might imply the re-development of the entire house - which is why they can be really costly. A few of the various other affecting elements that can have large influence on a two floor house extension expense includes: your area, the size of the develop, intricacy of the design (anything beyond the standard construct will usually call for even more experience and time), the glazing to be included (the extra the glass utilized in the project, the a lot more the product price), as well as the team made use of.

Average House extensions cost in Hillingdon

The regular cost of House extensions are £53,000 in Hillingdon. 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 Hillingdon, as reported by local LeadsDoWork members.

House extensions installation cost in Hillingdon 2025

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

House extensions searches in January 2025

House extensions Projects in Hillingdon in December 2024

0

Requests for quotations in Hillingdon in December 2024

0

Requests for House extensions quotations in Hillingdon in December 2024. 0% change from December 2024.

1,000

Requests for House extensions quotations in London County in December 2024. 14% change from December 2024.

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

House extensions searches in cities and towns near Hillingdon December 2024

11

Requests for quotations in Southall in December 2024

9

Requests for quotations in Uxbridge in December 2024

9

Requests for quotations in Greenford in December 2024

7

Requests for quotations in Northolt in December 2024

7

Requests for quotations in Hayes in December 2024

Hillingdon

The London Borough of Hillingdon is the westernmost borough in Greater London. It was formed in 1965 from the districts of Hayes and Harlington, Ruislip-Northwood, Uxbridge, and Yiewsley and West Drayton in the historic county of Middlesex. The borough covers an overall area of 44.67 square miles. This makes it the second largest of the 32 London boroughs by area.

Hillingdon Council governs the borough, with its headquarters within the Civic Centre in Uxbridge. The south of the borough's former powerful connection with industry has diminished since the 1980s to be replaced by a substantially residential suburban population; the north continues to be a consistently residential suburban area.

The borough's residential places expanded with the extension of the Metropolitan Railway from Harrow on the Hill to Uxbridge in the early 20th century along with the gradual establishment of stops along the line, becoming called 'Metro-land'.

Based on population estimates in the middle of 2014, Hillingdon presently has a permanent population of about 292690 inhabitants.

The borough maintains over 200 green spaces, totalling around 1800 acres. As a lot of the area is within the Metropolitan Green Belt it was, in 2008, one of the least densely populated of all of the London boroughs; open spaces range in size from the Colne Valley Regional Park to smaller gardens which include Lake Farm Country Park. For all your property upgrades, be sure that you utilise trustworthy professionals in Hillingdon to make sure that you get the very best quality.

Looking for House extensions in Hillingdon?

Get free quotes from local builders

Get free quotes

House extensions pros in Hillingdon

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

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.

Tectra Partnership Ltd

1 review(s)
Based: in Slough, SL3 0JE

Latest review

Deepak S., KT10
5

House Extensions in Esher

excellent communication

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 Hillingdon

14 Oct

House Extensions

Pinner - HA5

Enquiry from: Farhana C

Start Date: Immediate

Customer made an enquiry for House Extension via one of our websites. Looking at various options they would like to discuss directly Confirmed interest via phone at 16:26 Please call to discuss and a...

Post a similar request >

11 Aug

House Extensions

Harrow - HA2

Enquiry from: Archit J

Start Date: Immediate

Rear extension squaring off. We have half of the width of the house already extended to the rear. Now want to square it off by extending the remaining ~4 meter width to similar 6 meter depth. So area ...

Post a similar request >

10 Aug

House Extensions

West Drayton - UB7

Enquiry from: Mike T

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

Post a similar request >

20 Jul

House Extensions

Rickmansworth - WD3

Enquiry from: Romana R

Start Date: Immediate

First story extension of a bungalow and a loft room - 74msq, clad in brick slips

Post a similar request >

13 Jun

House Extensions

Hayes - UB3

Enquiry from: Karen C

Start Date: Immediate

customer in the hayes area made an enquiry a couple of projects including house extension.call anytime and arrange an appointment to discuss. below is some details about this project: are you the prop...

Post a similar request >

07 Mar

House Extensions

Uxbridge - UB8

Enquiry from: Anupama N

Start Date: Immediate

customer in uxbridge area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to di...

Post a similar request >

05 Mar

House Extensions

Uxbridge - UB10

Enquiry from: Praful K

Start Date: 1 to 3 months

customer in uxbridge area made an enquiry for house extension online. confirmed via sms at 09:47 please call to arrange an appointment to discuss options are you the property owner: owner of the prop...

Post a similar request >

01 Mar

House Extensions

Uxbridge - UB10

Enquiry from: Praful K

Start Date: 1 to 3 months

customer in uxbridge area made an enquiry for house extension online. confirmed via sms at 09:47 please call to arrange an appointment to discuss options are you the property owner: owner of the prop...

Post a similar request >

06 Feb

House Extensions

Staines-upon-Thames - TW19

Enquiry from: Timothy S

Start Date: Immediate

Submit your free quote for rated tradespeople

Post a similar request >

30 Jan

House Extensions

Staines-upon-Thames - TW19

Enquiry from: H

Start Date: Immediate

Customer is looking for House Extension quotes. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Staines-upon-Thames area Please call to arrange an appoi...

Post a similar request >

29 Mar

House Extensions

Pinner - HA5

Enquiry from: Manish K

Start Date: Immediate

House extensions Lead

Looking for a builder to install 7 metal beams including propping up where needed

Post a similar request >

07 Mar

House Extensions

Hayes - UB4

Enquiry from: Neville L

Start Date: Immediate

side extension. planning permission granted. awaiting building regs. single story. i bedroom en suite extra toilet. change of entry into building. use of current front door window. use of current kitc...

Post a similar request >

05 Mar

House Extensions

Northolt - UB5

Enquiry from: Boma F

Start Date: 1 to 3 months

i will like the extension to the kitchen and dinning room to the rear are you the property owner: owner of the property property type: semi detached looking for: single storey extension do you have pl...

Post a similar request >

30 Jan

House Extensions

Ruislip - HA4

Enquiry from: Shuchi M

Start Date: Immediate

customer in ruislip areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via email at 30/01/2022 21:08.please call to arrange appoint...

Post a similar request >

19 Jan

House Extensions

Uxbridge - UB10

Enquiry from: Ramesh R

Start Date: Immediate

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

Post a similar request >

19 Jan

House Extensions

Uxbridge - UB8

Enquiry from: Bashira N

Start Date: Immediate

customer in uxbridge area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to di...

Post a similar request >

17 Jan

House Extensions

Pinner - HA5

Enquiry from: Anita J

Start Date: Immediate

looking for an extension to back room that is bright and glass are you the property owner: owner of the property looking for: double storey extension do you have planning permission: yes do you have p...

Post a similar request >

26 Oct

House Extensions

Harrow - HA2

Enquiry from: Maz K

Start Date: Immediate

customer has a extensions & conversions project they are looking to have done, specially they want quotes for house extension. they are unsure of options so would like to discuss with a builder.confir...

Post a similar request >

13 Aug

House Extensions

Northwood - HA6

Enquiry from: Mughal M

Start Date: Immediate

customer in northwood area has requested that we arrange quotes for their house extension project.mrs are considering various options and would like to discuss with a builder directly.please call to d...

Post a similar request >

04 Aug

House Extensions

Uxbridge - UB10

Enquiry from: Reena C

Start Date: Immediate

rear conservatory 5.8m by 2.8m with a fibre glass roof with two large sky lights. start to end job from foundations through to plastering and paint are you the property owner: owner of the property lo...

Post a similar request >

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 Hillingdon

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

Hire with confidence

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

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love LeadsDoWork it's a big part of my …

Love LeadsDoWork it's a big part of my Business I would recommend to anyone

FAQs

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.

Can I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

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 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.

Placholder Image

Other Top Projects in Hillingdon

Customer Reviews

Overall rating:


Hillingdon House extensions installers are rated 4.3 out of 5 based on 16 reviews of 165 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Hillingdon House extensions contractors

Are you a builder in Hillingdon?

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

Join today