House Extension in city

Find House Extension Prices in city

Home > Extensions & Conversions Projects > House extensions > Cambridge

House Extension in city

House extension features a wide range of advantages that makes it easy to see why the extension could be a excellent uptick in the possible cost of your home in terms of sales. So if you're wanting to construct a brand-new house extension but still not encouraged about the project, we're below to help you. Being totally aware any type of house building and construction work is typically a hefty financial investment, there's a big requirement to be set on your choice before scheduling the start of any kind of work. So are house extensions worth it? Below are several of the top advantages offered by house extensions to help you decide if it's the most appropriate path for you.

 

What's Involved in Building an Extension?

The steps will certainly differ depending on the scope of your extension, however you can expect some, if not all, of the listed below to be entailed when including an extension to your home:

 

  1. Acquiring Building Regulations or Planning Permission (if called for as the extension is larger than permitted development).
  2. Checking your leasehold arrangement (if appropriate) to see to it you can do what you intend to do.
  3. Hiring an architect  to draw the plans, considering your expected usage (kitchen, washroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance coverage company to allow them recognize of the planned job ahead of it beginning.
  6. Getting car parking permits if required for your specialists to guarantee they have very easy access to your home.
  7. Seeing to it all prepared job drops within allowed allowables.
  8. Clearing up the space as well as digging deep into if required, including the removal of trees.
  9. Building job can begin.

 

What is the expense of a house extension in city?

If you're thinking about adding a two storey house extension, after that establishing a allocate this job would certainly be a great means to get started. Comparable to a rear extension, a two floor extension generally leaves the rest of the structure needing some work and also, due to its dimension, this might imply the re-development of the whole house - which is why they can be really costly. Some of the other affecting aspects that can have large influence on a 2 floor house extension price consists of: your location, the size of the develop, complexity of the style (anything past the basic construct will generally need more expertise and time), the glazing to be included (the extra the glass made use of in the project, the much more the product expense), along with the team utilized.

Average House extensions cost in Cambridge

The regular cost of House extensions are £44,375 in Cambridge. Costs vary based upon the materials and the company picked. The upper price range can be as high as £62,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£29,250

Avg. price

Avg. price
£44,375

Avg. price high

Avg. price high
£62,000

£62500

£46875

£31250

£15625

£0

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

House extensions installation cost in Cambridge 2026

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

House extensions on Google in Cambridge

Google searches that showed Local Quotes, 18 July to 15 October 2026

951

Searches that showed our House extensions page for Cambridge

13,207

Searches that showed one of our pages for Cambridge, all services

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

House extensions searches near Cambridge, 18 July to 15 October 2026

10

Searches that showed our page for Ely

Cambridge

Cambridge isn't a particularly big city but takes centre stage due to its top university, which it's well-known for. The city by itself just has a population of 125,000 although attracts in loads of tourism with the river appeal and various other activities. There's a variety of homes within the city as well with older and modern buildings, so no matter whether it's insulation or renewable technology, always keep your Cambridge property up-to-date.

Looking for House extensions in Cambridge?

Get free quotes from local builders

Get free quotes

House extensions pros in Cambridge

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 Extension in London

Great consultation by Catalin Spent a lot of time with us understanding the project and various options.

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 Extension in Hemel Hempstead

No quote received

Similar Customer Enquiries for House extensions in Cambridge

12 Mar

House extensions

Cambridge - CB23

Enquiry from: Jay M

Start Date: Immediate

House extensions enquiry

Post a similar request >

09 Jan

House extensions

Cambridge - CB2

Enquiry from: David C

Start Date: Immediate

Addition of 12 x 4m SIP extension to rear of school hall. To incorporate an existing toilet block and have a roof extended from the halls existing pitched slate roof. 2 x Sliding patio doors along fro

Post a similar request >

13 Nov

House extensions

Cambridge - CB1

Enquiry from: Racquel C

Start Date: Immediate

House extensions enquiry

Post a similar request >

28 Oct

House extensions

Cambridge - CB3

Enquiry from: Mehdi N

Start Date: Immediate

House extensions enquiry

Post a similar request >

Advertisement

Local & reliable builders near me

Tell us about your house extensions project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Cambridge

Get free, no-obligation local house extensions quotes from 4 verified builders working in Cambridge.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

We haven't decided yet

We haven't decided yet

Helped find a good company without ...

Helped find a good company without all the ringing around

Simple process which gets you resul ...

Simple process which gets you results! Well done.

FAQs

What types of extension are there?

There are many different types of extension. For example, you could install an orangery, flat or pitched roof extension, over-structure extension, single or double storey extension or a glass box extension. Which one of these is most suitable will depend on your existing property.

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.

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 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.

House extensions

Other Top Projects in Cambridge

Customer Reviews

Overall rating:


Cambridge House extensions pros are rated 4.5 out of 5 on average: 7 rated pros, 79 reviews, of 30 pros covering the area.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with House extensions projects that have been connected with House extensions pros to help them. All House extensions contractors All Cambridge House extensions contractors

Are you a builder in Cambridge?

We can help you get more house extensions work with our qualified job leads and boost your business.

Join today