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House Extension in city

House extension comes with a vast array of advantages that makes it very easy to see why the extension could be a excellent uptick in the potential rate of your residential or commercial property in terms of sales. So if you're looking to construct a brand-new residence extension however still not convinced concerning the project, we're right here to assist you. Being fully mindful any type of residence construction job is generally a heavy investment, there's a substantial demand to be set on your decision prior to setting up the beginning of any kind of work. So are house extensions worth it? Below are several of the leading advantages offered by house extensions to help you make a decision if it's one of the most ideal course for you.

 

What's Associated with Building an Extension?

The steps will certainly differ depending upon the extent of your extension, but you can anticipate some, if not all, of the below to be included when including an expansion to your residence:

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Examining your leasehold agreement (if applicable) to make sure you can do what you wish to do.
  3. Getting an architect  to draw the plans, considering your expected use (kitchen, restroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage carrier to let them know of the intended job ahead of it starting.
  6. Obtaining parking permits if required for your specialists to ensure they have simple accessibility to your residential property.
  7. Ensuring all planned job drops within allowed allowables.
  8. Clearing the area and also excavating if essential, consisting of the elimination of trees.
  9. Structure work can begin.

 

What is the expense of a house extension in city?

If you're thinking about adding a two floor house extension, then establishing a budget for this job would be a wonderful method to start. Similar to a back extension, a 2 storey extension generally leaves the remainder of the structure requiring some work as well as, because of its size, this may suggest the re-development of the whole house - which is why they can be very costly. Several of the various other influencing elements that can have huge influence on a two storey house extension expense consists of: your area, the dimension of the build, intricacy of the style (anything past the typical build will normally need even more experience as well as time), the glazing to be incorporated (the a lot more the glass made use of in the task, the much more the material expense), in addition to the group made use of.

Average House extensions cost in Oxford

The regular cost of House extensions are £44,167 in Oxford. Costs vary based upon the materials and the company picked. The upper price range can be as high as £62,667. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£29,000

Avg. price

Avg. price
£44,167

Avg. price high

Avg. price high
£62,667

£63200

£47400

£31600

£15800

£0

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

House extensions installation cost in Oxford 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 Oxford in May 2026

9,304

Requests for quotations in Oxford in May 2026

20

Requests for House extensions quotations in Oxford in May 2026. -50% change from April 2026.

110

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

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

House extensions searches in cities and towns near Oxford May 2026

20

Requests for quotations in Oxford in May 2026

10

Requests for quotations in Abingdon in May 2026

10

Requests for quotations in Wallingford in May 2026

10

Requests for quotations in Thame in May 2026

10

Requests for quotations in Bicester in May 2026

Oxford

Famous due to its university, the city of Oxford has a populace of 165,000 and is found in central southern England. There are actually significant redevelopment programmes in progress to fully pedestrianise the city centre. Inspite of Oxford's fairly traditional appeal, it possesses a present day sense also and homeowners are attempting to improve their properties in a bid to always keep up with the changing face of the city.

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House extensions pros in Oxford

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 Oxford

30 Apr

House Extensions

Oxford - OX2

Enquiry from: Mark C

Start Date: 1 to 3 months

what type of property is this for? house what type of extension do you need? single storey extension when was the property built? 1921 to 1979 how many stories is the current building? 1 storey do you...

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18 Feb

House Extensions

Oxford - OX4

Enquiry from: Andrea G

Start Date: Immediate

One storey extension on the top of a garage.

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30 Jan

House Extensions

Oxford - OX3

Enquiry from: Aromal P

Start Date: Immediate

mrs requested quotes for house extension from a builder around oxford. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the information below is ...

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27 Jul

House Extensions

Oxford - OX2

Enquiry from: Steve B

Start Date: Immediate

home owner single storey side / back extension for kitchen,utility,shower,toilet

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30 May

House Extensions

Oxford - OX2

Enquiry from: Fabrizio M

Start Date: Immediate

7 x 2.5 timber extension. Part will be utility room, part house entrancd

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08 Mar

House Extensions

Oxford - OX44

Enquiry from: Bethany L

Start Date: Immediate

Hello, I'm hoping to get a quote for a single story extension to the side and rear of a two bedroom house. The estimated size is 15m2 but I can provide current and proposed floor plans. The extensi...

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02 Mar

House Extensions

Oxford - OX4

Enquiry from: David E

Start Date: Immediate

Rear extension with refurbishment of kitchen and dinning room

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01 Mar

House Extensions

Oxford - OX2

Enquiry from: Victoria L

Start Date: Less than one month

Knights Builders Oxford has a combined total of 25 years of experience in the construction industry. We focus on delivering best-in-class construction projects in the Oxford area, where we have served...

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20 Feb

House Extensions

Oxford - OX2

Enquiry from: Marie J

Start Date: Immediate

Are you the home owner of that property? yes Are you replacing an existing porch or is this a new build? New Build What material do you require, UPVC? Upvc What colour do you want it to be? Unsure I a...

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11 Feb

House Extensions

Oxford - OX4

Enquiry from: Nicolas W

Start Date: 1 to 3 months

Single storey rear kitchen extension adding a bedroom and utility. Plans are available Customer is currently in the process of looking for quotes to add a Single storey extension to their property. A...

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28 Oct

House Extensions

Oxford - OX2

Enquiry from: Hannes B

Start Date: Immediate

2 storey extension to replace existing garage

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28 Jun

House Extensions

Oxford - OX3

Enquiry from: Andrew S

Start Date: Immediate

Side extension 2 bedrooms up stairs Knock through kitchen Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you the property owner: ...

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06 Jun

House Extensions

Oxford - OX3

Enquiry from: Miguel E

Start Date: 1 to 3 months

We would like to knock the wall off between the sitting room and the living room to make one big one. We also need to remove the chimney breast. Finally we are planning to make a new single-story exte...

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07 Apr

House Extensions

Oxford - OX3

Enquiry from: Andrew S

Start Date: Immediate

2 storey pitched roif2 bedroom knock through kitchen for kitchen diner Customer is currently in the process of looking for quotes to add a Double storey extension to their property. Are you the prope...

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02 Nov

House Extensions

Oxford - OX4

Enquiry from: Shereen D

Start Date: 1 to 3 months

Homeowner Please contact to appoint

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11 Sep

House Extensions

Oxford - OX3

Enquiry from: Melp H

Start Date: Immediate

Submit your free quote for rated tradespeople

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01 May

House Extensions

Oxford - OX4

Enquiry from: Sophia K

Start Date: Immediate

Are you the property owner: Owner of the property Looking For: Single storey extension Do you have planning permission: Yes Do you have plans drawn up: Yes Do you require Plumbing Work: No Do you requ...

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30 Apr

House Extensions

Oxford - OX2

Enquiry from: VIJAYA G

Start Date: Immediate

Home Owner Call to Appoint

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25 Apr

House Extensions

Oxford - OX2

Enquiry from: Elizabeth M

Start Date: 3+ months

What kind of work are you looking to do? House Extension So, what storey extension are you after? Single Storey Great, do you have plans or planning permission in place? No 7x18' side extension with ...

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17 Mar

House Extensions

Oxford - OX4

Enquiry from: IOANNA P

Start Date: Less than one month

We would like to extend the back of the house on the ground as well as 1st floor. In total both floors would be 54sqm. Thank you Are you the property owner: Owner of the property Looking For: Double ...

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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.

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 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.

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.

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