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House Extension in city

House extension features a wide range of advantages that makes it simple to see why the extension could be a terrific uptick in the prospective cost of your residential property in regards to sales. So if you're wanting to construct a brand-new house extension but still not persuaded about the project, we're below to help you. Being totally conscious any kind of home building job is normally a heavy investment, there's a big requirement to be set on your choice before scheduling the commencement of any kind of work. So are house extensions worth it? Below are some of the leading benefits used by house extensions to aid you decide if it's the most suitable path for you.

 

What's Involved in Including an Extension?

The steps will vary relying on the scope of your extension, however you can expect some, otherwise all, of the listed below to be entailed when adding an extension to your home:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Inspecting your leasehold arrangement (if suitable) to make sure you can do what you intend to do.
  3. Getting an architect  to draw the plans, considering your expected usage (kitchen, bathroom, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance service provider to let them recognize of the planned job ahead of it starting.
  6. Acquiring car parking permits if required for your specialists to guarantee they have simple access to your residential building.
  7. Ensuring all prepared job falls within permitted allowables.
  8. Clearing the space and also excavating if needed, including the elimination of trees.
  9. Building job can start.

 

What is the cost 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 certainly be a wonderful means to start. Similar to a rear extension, a two floor extension typically leaves the remainder of the building requiring some work and, due to its size, this may suggest the re-development of the whole house - which is why they can be very costly. Some of the other influencing elements that can have huge impact on a two storey house extension price includes: your area, the dimension of the develop, complexity of the design (anything beyond the standard build will typically need even more proficiency and time), the glazing to be incorporated (the more the glass used in the task, the extra the material expense), in addition to the group utilized.

Average House extensions cost in Brentwood

The regular cost of House extensions are £50,625 in Brentwood. Costs vary based upon the materials and the company picked. The upper price range can be as high as £67,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2026

Avg. price low

Avg. price low
£36,750

Avg. price

Avg. price
£50,625

Avg. price high

Avg. price high
£67,000

£67500

£50625

£33750

£16875

£0

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

House extensions installation cost in Brentwood 2026

Labour cost £27,000
Material cost £10,500
Waste removal £2,500
Time frame: 10-14 weeks
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House extensions on Google in Brentwood

Google searches that showed Local Quotes, 19 July to 16 October 2026

4,113

Searches that showed one of our pages for Brentwood, 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 Brentwood, 19 July to 16 October 2026

912

Searches that showed our page for Braintree

3

Searches that showed our page for Billericay

Brentwood

Brentwood can be found in the district of Essex inside the East of England and is placed only 20 miles from the capital city of London. Brentwood is definitely an affluent suburban town, which although remaining small continues to be growing and features a population of 73,000. It was thought to be Britain's nineteenth richest town in 2008 and main redevelopment work is scheduled to cost between £3 million and £7 million. For all the house enhancements you're looking at in the town of Brentwood, make sure to employ reputable professionals and get the most from your money.

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House extensions pros in Brentwood

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

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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.

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.

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.

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.

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Overall rating:


Brentwood House extensions pros are rated 4.2 out of 5 on average: 10 rated pros, 56 reviews, of 81 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 Brentwood House extensions contractors

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