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House Extension in city

House extension includes a wide variety of benefits which makes it easy to see why the extension could be a excellent uptick in the possible cost of your building in terms of sales. So if you're wanting to build a new home extension however still not persuaded about the job, we're right here to assist you. Being totally conscious any type of home building work is normally a hefty investment, there's a big need to be set on your decision before arranging the commencement of any kind of work. So are house extensions worth it? Below are a few of the top advantages supplied by house extensions to help you determine if it's one of the most appropriate path for you.

 

What's Involved in Adding an Extension?

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

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if suitable) to make sure you can do what you want to do.
  3. Employing an architect  to prepare the plans, considering your expected use (kitchen, bathroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance carrier to let them understand of the prepared work ahead of it starting.
  6. Getting car parking permits if needed for your specialists to ensure they have very easy accessibility to your building.
  7. Making certain all prepared work drops within allowed allowables.
  8. Clearing the space and digging deep into if essential, including the elimination of trees.
  9. Building work can start.

 

What is the expense of a house extension in city?

If you're thinking about including a 2 floor house extension, then establishing a allocate this job would be a wonderful way to get started. Comparable to a back extension, a two storey extension usually leaves the remainder of the building needing some job and, because of its size, this might suggest the re-development of the entire house - which is why they can be extremely expensive. A few of the various other affecting aspects that can have huge influence on a two storey house extension cost includes: your area, the size of the construct, complexity of the style (anything past the typical construct will usually need more knowledge as well as time), the glazing to be included (the much more the glass utilized in the task, the a lot more the material expense), along with the team utilized.

Average House extensions cost in Gatwick

The regular cost of House extensions are £52,000 in Gatwick. Costs vary based upon the materials and the company picked. The upper price range can be as high as £71,600. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£34,400

Avg. price

Avg. price
£52,000

Avg. price high

Avg. price high
£71,600

£72100

£54075

£36050

£18025

£0

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

House extensions installation cost in Gatwick 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 Gatwick in May 2026

86

Requests for quotations in Gatwick in May 2026

1

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

70

Requests for House extensions quotations in West Sussex in May 2026. -13% change from April 2026.

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

House extensions searches in cities and towns near Gatwick May 2026

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Requests for quotations in Reigate in May 2026

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Gatwick

Shackleford is a village and also civil parish in the Borough of Guildford, Surrey, England centred to the west of the A3 in between Guildford and Petersfield 32 miles (51 kilometres) southwest of London and 5.2 miles (8.4 kilometres) southwest of Guildford. Shackleford consists of the regions of Eashing, Hurtmore, Norney as well as Gatwick. Nestled among fir and beech vineyards is a tiny area containing 15 houses called Gatwick (not to be puzzled with the former district in Reigate and Banstead, or the airport terminal of the very same name), parts of which overlook part of the area of peaceful, acid health to the northwest, the Surrey Wildlife Trust handled Puttenham & Crooksbury Commons.

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House extensions pros in Gatwick

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 Gatwick

30 Jun

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Horley - RH6

Enquiry from: Renu G

Start Date: Immediate

rear extension for 39 sq metre side extension for 67 sq metre outside garden bldg 35 sq metre ( external wood cladding) customer is currently in the process of looking for quotes to add a single sto...

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14 Jan

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You built a bungalow back in 1981 on an old petrol filling station. We are in the process of buying this bungalow but have hit a problem that the old petrol tanks may be still underground. I wondered ...

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40 sqm side extension to bungalow. i want a rough price. customer is currently in the process of looking for quotes to add a single storey extension to their property. are you the property owner: own...

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21 Apr

House Extensions

Horley - RH6

Enquiry from: Greig R

Start Date: 1 to 3 months

42 sq metre single-storey extension to a bungalow. External dimensions 5m by 7m approx. for living room hallway and toilet. Also a small extension on the back of the living room of 3m x 2m laundry roo...

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09 Apr

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Horley - RH6

Enquiry from: Greig R

Start Date: 1 to 3 months

42 sq metre single-storey extension to a bungalow. External dimensions 5m by 7m approx. for living room hallway and toilet. Also a small extension on the back of the living room of 3m x 2m laundry roo...

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06 Nov

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Horley - RH6

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*Property owner 2 storey extension; 3M x 6M Downstairs layout will change to move the kitchen into the extension creating a large open kitchen / diner. Upstairs extension to allow for additional b...

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double storey extension approx 80m2 Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Double storey extension Do you have planning permission: No Do you have ...

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05 Nov

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Horley - RH6

Enquiry from: Mark C

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two floor side extension and single floor rear extension. Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Double storey extension Do you have planning per...

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01 Aug

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Horley - RH6

Enquiry from: Janet W

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Home owner One storey extension on back of bungalow, open plan kitchen and dinning room. Assist with plans and Planning permission Please Contact to Appoint - best time to call after 5 *

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15 Jul

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Horley - RH6

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03 Jul

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Enquiry from: Mark C

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Home owner 2 storey side extension single storey rear extension - create more living space Please Contact to appoint *

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25 Jun

House Extensions

Horley - RH6

Enquiry from: Mark C

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2 storey side extension single storey rear extension

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24 May

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Horley - RH6

Enquiry from: Sabitha K

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extension at the back Please call to appoint

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04 Jan

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Horley - RH6

Enquiry from: Hatel P

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Customer visited the myhouseextension.co.uk site and submitted an enquiry. Property type: Detached, Work description: 2 storey about 5 x10 meters with about the first 5 meters connecting the origina...

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25 Aug

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Horley - RH6

Enquiry from: Ian P

Start Date: Immediate

Home owner Ground floor extension Extend living space Planning permission not required Assistance with plans may be required Time scale 3-6months Please contact to appoint *

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29 May

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Horley - RH6

Enquiry from: Kim P

Start Date: 1 to 3 months

two story extension on listed building Are you the property owner: Owner of the property Property Type: Detached Looking For: Double storey extension Do you have planning permission: No Would you...

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08 Apr

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Horley - RH6

Enquiry from: Ian P

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ground floor extension Please contact to appoint

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FAQs

Can an extension add value to my home?

Yes. Most extensions will add substantial value to your home, and you may find that the extension adds more value than it cost. However, it’s important to be sure that the home remains balanced. Extending your garage and leaving your property with no parking spaces, for example, may impact your ability to sell.

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.

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.

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