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House Extension in city

House extension comes with a vast array of advantages which makes it easy to see why the extension could be a great uptick in the prospective cost of your residential property in terms of sales. So if you're looking to construct a new residence extension but still not convinced concerning the project, we're here to assist you. Being totally mindful any type of home building and construction job is usually a hefty investment, there's a massive need to be set on your decision prior to arranging the start of any kind of work. So are house extensions worth it? Below are some of the leading advantages provided by house extensions to assist you decide if it's one of the most ideal path for you.

 

What's Associated with Building an Extension?

The steps will certainly vary relying on the scope of your extension, yet you can expect some, if not all, of the below to be entailed when including an extension to your residence:

 

  1. Getting Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Checking your leasehold agreement (if applicable) to make certain you can do what you want to do.
  3. Employing an architect  to draw up the plans, considering your intended use ( kitchen area, shower room, study).
  4. Hiring a competent builder with experience of larger projects.
  5. Contacting your insurance provider to let them know of the planned work ahead of it starting.
  6. Acquiring vehicle parking allows if needed for your contractors to guarantee they have very easy accessibility to your house.
  7. Seeing to it all intended work drops within permitted allowables.
  8. Clearing the area as well as digging deep into if needed, including the removal of trees.
  9. Structure work can start.

 

What is the price of a house extension in city?

If you're taking into consideration including a 2 storey house extension, after that setting a budget for this task would be a excellent method to get going. Similar to a rear extension, a two floor extension typically leaves the rest of the building requiring some work and, as a result of its size, this may suggest the re-development of the whole house - which is why they can be extremely expensive. A few of the other affecting elements that can have huge impact on a two floor house extension cost consists of: your area, the size of the construct, intricacy of the layout (anything beyond the common construct will generally need even more proficiency as well as time), the glazing to be included (the extra the glass used in the project, the extra the material expense), as well as the group made use of.

Average House extensions cost in Guildford

The regular cost of House extensions are £46,250 in Guildford. 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 Guildford, as reported by local LeadsDoWork members.

House extensions installation cost in Guildford 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 Guildford

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

5,384

Searches that showed one of our pages for Guildford, 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 Guildford, 18 July to 15 October 2026

291

Searches that showed our page for Farnham

240

Searches that showed our page for Camberley

66

Searches that showed our page for Bagshot

Guildford

Guildford is the county town of Surrey, found halfway in between London and Portsmouth in the southeast of England. It has a populace in excess of 66,000 and is amongst the UK's priciest house areas outside of London. To be sure of keeping this value and even boosting your property's worth, take advantage of reputable specialists for all of your enhancements.

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House extensions pros in Guildford

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

how much value does an extension add to your house?

Are you interested in extending your home to create more living space? If yes, then you’d probably want to know how much value it can add to your property in order to compare the building costs to the potential value gain. Well, as long as you know what you’re doing, your house doesn’t necessarily have to be a money pit. So what are your options when talking about home extensions and what’s the associated value to be gained?

• Bathroom Extensions

Although you should have it in mind that bathroom extensions isn’t usually that cheap, but once done, it can increase the value of a standard UK house within the range of £12,000 to £15,000. Meanwhile the finishing cost of a bathroom can range from £2,500 to £7,000.

• Single or Double Storey Extensions

Single storey extensions are always huge when it comes to increasing the value of your home - giving about 4 to 7 percent increase. If it goes that far, then literally nothing beats a full spectrum, double storey extension which can give up to 11 percent increase in the value of a property - equalling about a whooping £33,000 for a standard home in the UK.

• Conservatory Extension

With conservatories becoming more and more popular in the UK due to the weather conditions, several buyers are now including it’s availability as part of the criteria for purchasing a house. Wonder why? This is simply because everyone wants to enjoy their garden all throughout the year. As a result of this high demand, adding this type of extension to your house can go a long way to increase it’s value. However, it’s very important to incorporate high quality materials during construction. With glass conservatories offering, on the average, up to £5,000 increase in value, the cheaper PVC alternative offers much less value and can also deter potential buyers.

are house extensions worth it?

Often referred to by many as the holy grail of home improvements, house extension comes with a wide range of benefits which makes it easy to see why the extension could be a great uptick in the potential price of your property in terms of sales. So if you’re looking to build a new home extension but still not convinced about the project, we’re here to help you. Being fully aware any home construction work is usually a heavy investment, there’s a huge need to be set on your decision before scheduling the commencement of any work. So are house extensions worth it? Below are some of the top benefits offered by house extensions to help you decide if it’s the most suitable route for you.

• Add To Your Home’s Value

Building an home extension is a great way to add value to your home before selling. Increasing the living space of your home is an incredible appeal to many buyers which significantly increases your property’s total value. However, you must ensure that the extension is impressively designed using top quality materials in order to generate more value.

• Good Alternative To House Moving

The most common reason for moving is usually due to a lack of sufficient space, but with house prices steadily on the increase a cost effective alternative is highly sought after. This alternative is house extension which creates more space for the household to spread out and have more privacy.

• You May Not Require A Planning Permission

You can extend your house and still not need to apply for a planning permission. To achieve this, simply comply with the laid down rules set under the permitted development rights.

• Extra Living Space

If you fill you’re starting to outgrow your existing structure and do not buy into the idea of moving, then your best bet might just be to extend your home.

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.

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.

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Guildford House extensions pros are rated 4.1 out of 5 on average: 10 rated pros, 43 reviews, of 63 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 Guildford House extensions contractors

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