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House Extension in city

House extension features a vast array of advantages that makes it easy to see why the extension could be a terrific uptick in the prospective rate of your property in terms of sales. So if you're wanting to develop a new house extension yet still not persuaded regarding the job, we're right here to assist you. Being totally mindful any type of home building work is typically a heavy financial investment, there's a huge demand to be set on your choice before setting up the beginning of any kind of work. So are house extensions worth it? Below are some of the leading benefits offered by house extensions to assist you decide if it's one of the most appropriate route for you.

 

What's Involved in Including an Extension?

The actions will vary depending upon the scope of your extension, however you can anticipate some, if not all, of the below to be involved when adding an expansion to your residence:

 

  1. Getting Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if appropriate) to ensure you can do what you want to do.
  3. Hiring an architect  to draw up the plans, considering your intended use ( cooking area, bathroom, research study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance company to allow them know of the prepared job ahead of it beginning.
  6. Getting auto parking permits if needed for your contractors to guarantee they have very easy access to your building.
  7. Making certain all intended work drops within allowed allowables.
  8. Cleaning the area and excavating if necessary, consisting of the removal of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're considering adding a 2 floor house extension, then establishing a allocate this project would certainly be a excellent means to start. Comparable to a rear extension, a 2 floor extension typically leaves the rest of the building requiring some job as well as, due to its dimension, this might suggest the re-development of the entire house - which is why they can be very costly. Some of the other affecting aspects that can have large influence on a 2 storey house extension cost includes: your area, the dimension of the develop, complexity of the style (anything beyond the basic develop will usually need more knowledge and time), the glazing to be incorporated (the more the glass used in the job, the more the material price), as well as the team utilized.

Average House extensions cost in Gerrards Cross

The regular cost of House extensions are £46,250 in Gerrards Cross. Costs vary based upon the materials and the company picked. The upper price range can be as high as £64,500. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£30,500

Avg. price

Avg. price
£46,250

Avg. price high

Avg. price high
£64,500

£65000

£48750

£32500

£16250

£0

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

House extensions installation cost in Gerrards Cross 2026

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

House extensions searches in July 2026

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Requests for House extensions quotations in Gerrards Cross in June 2026. -100% change from May 2026.

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Gerrards Cross

Gerrards Cross is a town as well as civil parish in south Buckinghamshire, England, divided from the London Borough of Hillingdon at Harefield by Denham, southern of Chalfont St Peter as well as north of Fulmer and also Hedgerley, north east of Cippenham. It extends foothills of the Chiltern Hills and arrive on the ideal bank of the River Misbourne. It is 19.3 miles (31.1 kilometres) west-north-west of Charing Cross, main London. Bulstrode Park Camp was an Iron Age fortified encampment. The community has a train station on the Chiltern main line with services to London and also the M40 freeway runs next to woodland on its southerly limit. Lots of residences built throughout growth in the 1950s had defective floor tiles, bring about the greatest court reported judgment Young & Marten Ltd v McManus Childs Ltd, holding that a person who gets to do work as well as provide products unconditionally warrants that the materials will be fit for objective, even if the buyer specifies the materials to be utilized.

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House extensions pros in Gerrards Cross

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 Gerrards Cross

26 Sep

House Extensions

Gerrards Cross - SL9

Enquiry from: Chan G

Start Date: Immediate

Customer made enquiry for House Extension quotes online. Homeowner lives in Gerrards Cross area. Please call to arrange appointment

Post a similar request >

10 Aug

House Extensions

Gerrards Cross - SL9

Enquiry from: Matt K

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: Yes Do you require P...

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10 Jul

House Extensions

Gerrards Cross - SL9

Enquiry from: David A

Start Date: Immediate

Extension over (to be enlarged) garage/utility room to create on ground floor: small garage/storage, utility/bed-sit with wet-room and separate laundry area: upper floor to create 2 bedrooms and 2 bat...

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18 Mar

House Extensions

Gerrards Cross - SL9

Enquiry from: Mr G

Start Date: Immediate

Double garage approx. 6m x 6m internal with 2 garage doors 2250 tall 2375 wide Would like the roof to as low as possible. Prefer not to have a flat roof. Hipped roof with a low pitch (less than 20 de...

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16 May

House Extensions

Gerrards Cross - SL9

Enquiry from: Anne S

Start Date: Immediate

Home owner extension to the kitchen - approx 5mx4.5 - possibly also looking at building ontop of the extension to give an extra ensuite bedroom - would then convert one of the existing bedrooms int...

Post a similar request >

11 Apr

House Extensions

Gerrards Cross - SL9

Enquiry from: Anne S

Start Date: Immediate

extension to the kitchen - approx 5mx4.5 - possibly also looking at building ontop of the extension to give an extra ensuite bedroom - would then convert one of the existing bedrooms into a bathroom ...

Post a similar request >

26 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: S

Start Date: Immediate

kitchen extension increase size 15, x 15,

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20 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: Anne S

Start Date: Immediate

Home owner Detached Extension to the kitchen - approx 5mx4.5 - possibly also looking at building ontop of the extension to give an extra en suite bedroom - would then convert one of the existing bed...

Post a similar request >

10 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: Anne S

Start Date: Immediate

extension to the kitchen - approx 5mx4.5 - possibly also looking at building ontop of the extension to give an extra ensuite bedroom - would then convert one of the existing bedrooms into a bathroom ...

Post a similar request >

03 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: Anne S

Start Date: Immediate

extension to the kitchen - approx 5mx4.5 - possibly also looking at building ontop of the extension to give an extra ensuite bedroom - would then convert one of the existing bedrooms into a bathroom ...

Post a similar request >

07 Dec

House Extensions

Gerrards Cross - SL9

Enquiry from: Jonny I

Start Date: Immediate

Home owner Build 7x4 garage with pitched roof. Assist with Plans and planning permission Time scale 1-3months *

Post a similar request >

23 Nov

House Extensions

Gerrards Cross - SL9

Enquiry from: Jonny I

Start Date: Immediate

Home owner Build 7x4 garage with pitched roof. Assist with Plans and planning permission Time scale 1-3months *

Post a similar request >

27 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: Birju P

Start Date: 3+ months

Side-return kitchen-extension would be for an additional 9.5 square metres of space Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey exten...

Post a similar request >

09 Feb

House Extensions

Gerrards Cross - SL9

Enquiry from: Paul M

Start Date: 3+ months

Single storey extension 20m2 in total - 2 extra rooms. Knock outer wall to add dining room onto current kitchen, then add study next to dining room. including fitting of kitchen, move boiler, add s...

Post a similar request >

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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.

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.

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.

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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