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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 £52,500 in Harlow. Costs vary based upon the materials and the company picked. The upper price range can be as high as £69,333. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£39,000

Avg. price

Avg. price
£52,500

Avg. price high

Avg. price high
£69,333

£69900

£52425

£34950

£17475

£0

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

House extensions installation cost in Harlow 2025

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

House extensions searches in February 2025

House extensions Projects in Harlow in January 2025

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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 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.

where to start with a house extension?

Have you decided to improve your property instead of moving? The common problem most homeowners face after deciding to embark on a home extension project is not knowing where to start. In this article we’ll walk you through everything you need to consider and put in place before commencement of your home extension project.

• Is the extension worth it?

Before breaking the bank, you must be sure that the project will add good value to your home. In terms of “value, this is not only limited to the financial gain after disposal of the property, but also several other juicy benefits to be derived from extending your home like an extra living space for the household to spread out and more.

• Do you need a planning permission?

Check with your local authority to determine whether or not you’ll require to submit an application. You can also consult a building expert like an architect for advice.

• What are the building regulation?

Even though planning permission can be dodged, you can not avoid building regulations. These regulations are the set national minimum standards for construction and design which you must comply with to ensure the safety of the individuals in and around it.

• Who will design the extension?

You have to decided whether you’ll hire a professional architect to design the extension or not.

• Who will manage the building work?

If your home extension project is designed and built by a professional company, they’ll be responsible for the management. However, if you decide to use an architect or designed it yourself, you’ll have to hire a main contractor to manage the build.

• How to set the budget?

There are so many factors that can affect the cost of an extension, so it’s better to get the costs from your builder before proceeding.

• Do I need yo inform my home insurance firm?

Absolutely! This is very important as the new extension may affect the rebuilding cost of your property which could have an impact on the policy premium.

• Do I need to inform my neighbours?

It’s very important to discuss your plan with your neighbours before applying for a planning permission and communicate about the concerns they might have.

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.

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