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House Extension in city

House extension features a vast array of benefits which makes it easy to see why the extension could be a great uptick in the possible cost of your building in regards to sales. So if you're wanting to construct a new residence extension but still not convinced concerning the task, we're right here to assist you. Being fully mindful any type of residence construction job is typically a heavy investment, there's a massive requirement to be set on your choice prior to setting up the start of any work. So are house extensions worth it? Below are some of the leading benefits provided by house extensions to assist you determine if it's the most appropriate course for you.

 

What's Associated with Including an Extension?

The steps will vary relying on the scope of your extension, but you can expect some, otherwise all, of the below to be involved when adding an extension to your house:

 

  1. Getting Building Regulations or Planning Permission (if needed as the extension is larger than permitted development).
  2. Checking your leasehold contract (if relevant) to make certain you can do what you intend to do.
  3. Hiring an architect  to draw up the plans, considering your planned use ( kitchen area, washroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance policy supplier to let them know of the intended job ahead of it beginning.
  6. Acquiring car park permits if needed for your specialists to ensure they have easy access to your residential building.
  7. Ensuring all intended work drops within permitted allowables.
  8. Clearing up the space as well as digging deep into if essential, consisting of the elimination of trees.
  9. Building work can begin.

 

What is the expense of a house extension in city?

If you're taking into consideration adding a two floor house extension, then establishing a budget for this project would be a wonderful method to get going. Comparable to a back extension, a two storey extension normally leaves the remainder of the building requiring some job and, due to its size, this might suggest the re-development of the whole house - which is why they can be extremely costly. Several of the various other influencing factors that can have huge effect on a two storey house extension price consists of: your area, the dimension of the build, intricacy of the style (anything beyond the basic build will normally call for even more knowledge and time), the glazing to be integrated (the more the glass utilized in the job, the more the product expense), in addition to the team used.

Average House extensions cost in Harlow

The regular cost of House extensions are £50,625 in Harlow. Costs vary based upon the materials and the company picked. The upper price range can be as high as £67,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£36,750

Avg. price

Avg. price
£50,625

Avg. price high

Avg. price high
£67,000

£67500

£50625

£33750

£16875

£0

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

House extensions installation cost in Harlow 2026

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

House extensions searches in June 2026

House extensions Projects in Harlow in May 2026

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Requests for House extensions quotations in Harlow in May 2026. 0% change from April 2026.

90

Requests for House extensions quotations in Essex in May 2026. -10% change from April 2026.

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Requests for quotations in Harlow in May 2026

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Harlow

The Essex town of Harlow has a populace of 82,200 and forms part of the Greater london commuter belt. Harlow includes a land area of 11.79 sq . miles, giving it a population density of 6,970 people per square miles. In an attempt to handle London's overspill there's been significant redevelopment within the Harlow area. Make sure to keep your home up-to-date with improvements from vetted and trustworthy industry professionals in Harlow and have the best prices and a high quality finish.

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House extensions pros in Harlow

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.

Similar Customer Enquiries for House extensions in Harlow

15 Jun

House Extensions

Harlow - CM20

Enquiry from: Kate S

Start Date: Less than one month

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...

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29 Jan

House Extensions

Harlow - CM18

Enquiry from: Alexandra T

Start Date: Immediate

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

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10 Sep

House Extensions

Harlow - CM17

Enquiry from: Richard R

Start Date: Immediate

customer in harlow areas is looking to do a couple of projects at the moment, and would like quotes for house extension.confirmed interest via online.please call to arrange appointment are you the pro...

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22 Jun

House Extensions

Harlow - CM20

Enquiry from: Rita R

Start Date: Immediate

customer in harlow 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 22/06/2022 00:13.please call to arrange ...

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11 Apr

House Extensions

Harlow - CM20

Enquiry from: Marjan C

Start Date: Immediate

rear dormer loft conversion with low ceiling height of about 2.1m, chimney breast to be removed in loft and 1st floor. adding 2 beds and a shower room. customer is currently in the process of looking...

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14 Jul

House Extensions

Harlow - CM18

Enquiry from: Anna S

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...

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11 May

House Extensions

Harlow - CM20

Enquiry from: Violeta G

Start Date: Immediate

customer in harlow 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 11/05/2021 15:30.please call to arrange ...

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30 Oct

House Extensions

Harlow - CM19

Enquiry from: Barney W

Start Date: Immediate

4mx4m rear extension as a living room. sips panel /quick and efficient build are you the property owner: owner of the property property type: semi detached looking for: single storey extension do you...

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24 Jul

House Extensions

Harlow - CM17

Enquiry from: Paul D

Start Date: 1 to 3 months

extension 7mtr x 3.5 meter pitch roof with tiles, rendered finish, plaster skim internal, vault ceilings, 10x flush downlight. 3meter bi gold door to rhs two wi ndows , 1 to front, 1 to lhs flank wa...

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01 Feb

House Extensions

Harlow - CM20

Enquiry from: Lucy L

Start Date: 1 to 3 months

single storey extension off kitchen diner with downstairs toilet and small utility cupboard Are you the property owner: Owner of the property Property Type: Terrace Looking For: Single storey extensio...

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21 Oct

House Extensions

Harlow - CM17

Enquiry from: Daisy P

Start Date: 1 to 3 months

Outer building with sewage manhole covered in, drainage for wet room, basin and toilet, bathroom window, double window, partition with internal door and new opening from house to extension where windo...

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21 Sep

House Extensions

Harlow - CM17

Enquiry from: Alan L

Start Date: Less than one month

Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you the property owner: Owner of the property Property Type: Semi detached Looking Fo...

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03 Apr

House Extensions

Harlow - CM17

Enquiry from: Daisy P

Start Date: 1 to 3 months

Side single storey extension 3x7m Separated into 2 rooms a wet room with toilet and basin at the front of the house with an entrance to the bedroom (the is a sewage manhole) Are you the property ow...

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19 Mar

House Extensions

Harlow - CM20

Enquiry from: Zsolt A

Start Date: Immediate

Extension at the rear of the house, it will be used as a study room. It will be built on half of the property, in front of the living room. Dimensions won't exceed the permitted development dimensi...

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11 Sep

House Extensions

Harlow - CM18

Enquiry from: Julie H

Start Date: Immediate

Upper storey extension above existing ground floor extension, footings adequate to build up. 2 en suite bathrooms. 1 room with a vaulted ceiling Are you the property owner: Owner of the property Prope...

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22 Apr

House Extensions

Harlow - CM18

Enquiry from: Julie H

Start Date: Immediate

I already have a ground floor extension and wish to build above, the footings from the original extension were dug deep enough to allow for a 2nd storey to be added. Approx total are 35m2 Are you the ...

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06 Apr

House Extensions

Harlow - CM18

Enquiry from: Julie H

Start Date: Immediate

Build a first floor extension over existing extension, approx 35msq original extension foundations were dug to accommodate a further storey Are you the property owner: Owner of the property Property T...

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13 Dec

House Extensions

Harlow - CM20

Enquiry from: Michael E

Start Date: Immediate

We want to install a mezzanine floor and minstrel gallery in a community sports building

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02 Nov

House Extensions

Harlow - CM17

Enquiry from: B O

Start Date: Less than one month

Are you the property owner: Owner of the property Have you considered getting your windows replaced to match a new conservatory: No Are you looking for Conservatory blinds: Yes Other Forms: 45 Agreed...

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21 Jul

House Extensions

Harlow - CM19

Enquiry from: Renu W

Start Date: 3+ months

Extension on a house

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FAQs

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 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.

What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

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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