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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 2025

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 2025

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

House extensions searches in June 2025

House extensions Projects in Oxford in May 2025

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Requests for quotations in Oxford in May 2025

20

Requests for House extensions quotations in Oxford in May 2025. -50% change from April 2025.

110

Requests for House extensions quotations in Oxfordshire in May 2025. 10% change from April 2025.

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

House extensions searches in cities and towns near Oxford May 2025

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Requests for quotations in Oxford in May 2025

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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

Can I extend the front of my house?

When it comes to extending a home, the rear of the house often comes to mind a lot more than the front. However, this doesn’t mean that you can’t extend the front of your house. This can be done either as part of a renovation project whereby the entire house is incorporated or it can also be done in isolation. It’s possible to extend the front of your house without the need to apply for a planning permission, however, there are a bunch of limitations you’d have to comply with if you wish to carry out with such a project. Sometimes, this may imply that extending to the front of your home is more tedious and tasking than extending your home’s rear. So exactly how far can you extend the front of your home without planning permission?

 

The short and simple answer to this question is 2 metres square area with a height not more than 3 metres. Generally, you do not need a planning permission to build a front porch as long as its area doesn’t go beyond 2 square metres from a public road or walkway. Also, a tiled or slated roof can be as much as 4 metres but other roofs must not go beyond 3 metres in height. If you want to extend the front of your home beyond the restrictions specified, then you’ll have to apply for a planning permission.

 

Extending the front of home can be quite costly, but this can be controlled by not building to the extension to the highest specification, not including an extension on kitchens or bathrooms and more.

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.

Will my extension be expensive?

It depends on the size and type of extension. Small porches or flat roof extensions are very reasonably priced. More substantial two storey extensions can be expensive. In general, the price is roughly proportional to the amount of space you add to your home.

how big can my house extension be?

The holy grail of home extensions is basically the need for additional space for living as well as leisure. However, before commencing your home extension project, you’d probably want to know just how big your new building can be. In this article, you’ll find the answer to this question which is also frequently asked by many other home or property owners in the UK.

Besides your budget, there are two other major influencing factors that can determine just how much extra room that can be added. These factors include whether you wish to carry out the extension project under Permitted Development rights which is usually for a smaller project or you’d prefer to opt for a larger project which is covered by Planning Permission.

Apart from the limitations in the size of an extension under Permitted Development, the extensions are also a lot more affordable and consumes less time when compared to the extensions under planning permission. So what exactly is the size limit for an extension under Permitted Development and the ones under Planning Permission?

For a single storey extension, the maximum size that can be constructed without having to submit an application for Planning Permission includes:

• An extension should have a maximum length of 6m, if you reside in a terraced home or a semi-detached property.

• Extensions for detached properties can have a maximum length of 8m.

• The extension built must not go beyond half your garden’s area.

• The extension should have a maximum height of 4 metres, but in the event whereby the extension is situated within 2 metres of the boundary of your property, it should not exceed a height of 3 metres.

• The extension should not be higher than the highest part of the existing house’s roof.

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