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House Extension in city

House extension includes a variety of benefits that makes it very easy to see why the extension could be a excellent uptick in the prospective rate of your property in terms of sales. So if you're aiming to build a brand-new house extension yet still not persuaded concerning the task, we're here to help you. Being completely mindful any type of home building work is typically a heavy financial investment, there's a massive need to be set on your choice prior to scheduling the beginning of any job. So are house extensions worth it? Below are a few of the top benefits offered by house extensions to assist you choose if it's one of the most appropriate route for you.

 

What's Associated with Including an Extension?

The actions will differ relying on the range of your extension, yet you can anticipate some, if not all, of the below to be entailed when adding an extension to your home:

 

  1. Acquiring Building Regulations or Planning Permission (if required as the extension is larger than permitted development).
  2. Inspecting your leasehold contract (if applicable) to ensure you can do what you wish to do.
  3. Employing an architect  to prepare the plans, considering your intended usage ( cooking area, washroom, office).
  4. Hiring a competent builder with experience of larger projects.
  5. Calling your insurance policy supplier to allow them understand of the planned job ahead of it starting.
  6. Getting car parking permits if needed for your contractors to ensure they have very easy accessibility to your building.
  7. Ensuring all planned work falls within allowed allowables.
  8. Clearing the area as well as digging deep into if necessary, including the removal of trees.
  9. Structure work can start.

 

What is the cost of a house extension in city?

If you're taking into consideration including a two storey house extension, after that setting a budget for this project would be a fantastic way to get going. Similar to a rear extension, a 2 floor extension typically leaves the rest of the building needing some job and, as a result of its size, this might imply the re-development of the whole house - which is why they can be extremely expensive. Some of the various other affecting factors that can have huge influence on a two storey house extension expense includes: your place, the dimension of the develop, intricacy of the design (anything beyond the conventional construct will generally require more proficiency and also time), the glazing to be incorporated (the much more the glass utilized in the task, the extra the product expense), in addition to the group used.

Average House extensions cost in St Albans

The regular cost of House extensions are £51,875 in St Albans. Costs vary based upon the materials and the company picked. The upper price range can be as high as £72,000. The material costs are in most cases around£10,500.

Average price per House extensions job in 2025

Avg. price low

Avg. price low
£34,250

Avg. price

Avg. price
£51,875

Avg. price high

Avg. price high
£72,000

£72500

£54375

£36250

£18125

£0

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

House extensions installation cost in St Albans 2025

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

House extensions searches in May 2025

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Requests for House extensions quotations in St Albans in April 2025. 0% change from March 2025.

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St Albans

The historic city of St Albans, found in southern Hertfordshire just 22 miles from London, is a really in demand region on the house market. The location is famous because of its high property price tags, which are one of the most expensive in the British Isles. The city still preserves quite a lot of its historical roots all through the ages including the Abbey and fifteenth century clock tower. Making buildings up-to-date is important in St Albans in making the most from higher quotations so use our vetted skilled tradesmen to carry out the project.

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House extensions pros in St Albans

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 St Albans

09 Jun

House Extensions

St. Albans - AL2

Enquiry from: Carole W

Start Date: Immediate

Single wraparound extension

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10 Mar

House Extensions

St. Albans - AL3

Enquiry from: Monir A

Start Date: Immediate

Side extension - 3 meteres by 9 meteres apx with flat roof, a couple of doors, and a sky light.

Post a similar request >

07 Oct

House Extensions

St. Albans - AL3

Enquiry from: Daniella S

Start Date: 1 to 3 months

quote on a modular extension Customer is currently in the process of looking for quotes to add a Single storey extension to their property. Are you the property owner: Owner of the property Property T...

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10 Aug

House Extensions

St. Albans - AL4

Enquiry from: JACQUELINE B

Start Date: 1 to 3 months

Extension of approx 5.2 sq metres to existing bedroom over existing ground floor room so that bedroom walls becomes flush with ground floor room. New pitched roof to join existing roof. Planning perm...

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04 Mar

House Extensions

St. Albans - AL2

Enquiry from: Dave W

Start Date: Immediate

price on 2 story side extension

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12 Feb

House Extensions

St. Albans - AL1

Enquiry from: Alex K

Start Date: Less than one month

A one storey rear extension of 7m wide x 4m deep with a pitched roof with skylights, and bifold doors. Opening up existing dining room and kitchen into the new extension creating a 7m x 7m space. Pl...

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07 Nov

House Extensions

St. Albans - AL1

Enquiry from: Iulian P

Start Date: Immediate

Home Owner Extension Please call to appoint

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05 Nov

House Extensions

St. Albans - AL4

Enquiry from: Rasika A

Start Date: Immediate

Home Owner Extension Please call to appoint

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06 Aug

House Extensions

St. Albans - AL4

Enquiry from: Alistair D

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: No Do you have plans drawn up: No Do you require Pl...

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05 Jun

House Extensions

St. Albans - AL3

Enquiry from: Hayley B

Start Date: 1 to 3 months

Are you the property owner: Owner of the property Property Type: Terrace Looking For: Double storey extension Do you have plans drawn up: Yes Do you have planning permission: Yes Do you require Plumbi...

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20 May

House Extensions

St. Albans - AL4

Enquiry from: Paul L

Start Date: 1 to 3 months

Single storey side extension with pitched roof. Are you the property owner: Owner of the property Property Type: Semi detached Looking For: Single storey extension Do you have planning permission: Yes...

Post a similar request >

08 Apr

House Extensions

St. Albans - AL1

Enquiry from: Ameeta S

Start Date: 1 to 3 months

Property Type: Semi Detached Have you got a rough idea of the design you would like: Some Ideas How many bedrooms are you looking to have: 5+ Bedrooms How many storeys are you looking for the propert...

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25 Jan

House Extensions

St. Albans - AL4

Enquiry from: Lynda P

Start Date: Less than one month

Property Type: Semi Detached Have you got a rough idea of the design you would like: Some Ideas How many bedrooms are you looking to have: 1-2 Bedrooms How many storeys are you looking for the proper...

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18 Oct

House Extensions

St. Albans - AL4

Enquiry from: Rob H

Start Date: Immediate

A single storey extension. Are you the property owner: Owner of the property Looking For: Single storey extension Property Type: Semi detached Do you have planning permission: No Do you have plans dra...

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01 Oct

House Extensions

St. Albans - AL1

Enquiry from: Stephanie P

Start Date: Immediate

2 storey extension to the side of the house. About 9 m squared on each storey

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22 Sep

House Extensions

St. Albans - AL4

Enquiry from: Claire C

Start Date: 3+ months

Kitchen one storey extension

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12 Sep

House Extensions

St. Albans - AL2

Enquiry from: RASHID K

Start Date: Immediate

WE ARE LOOKING FOR A TWO BEDROOM FLAT WITH KITCHEN/DINER/LOUINGE EXTENSION OVER THE DRIVEWAY THE DRIVEWAY IS ON THE SIDE OF THE BUILDING,WE WANT TO KEEP THE DRIVEWAY AND HAVE THE EXTENSION OVER IT

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08 Sep

House Extensions

St. Albans - AL2

Enquiry from: RASHID K

Start Date: Immediate

WE ARE LOOKING FOR A TWO BEDROOM FLAT WITH KITCHEN/DINER/LOUINGE EXTENSION OVER THE DRIVEWAY THE DRIVEWAY IS ON THE SIDE OF THE BUILDING,WE WANT TO KEEP THE DRIVEWAY AND HAVE THE EXTENSION OVER IT

Post a similar request >

23 Aug

House Extensions

St. Albans - AL2

Enquiry from: Abdool R

Start Date: Immediate

We want to extend over the driveway , the ground floor will remain as driveway . we are looking at a two bedroom ,kitchen diner and lounge ,bathroom over the driveway

Post a similar request >

29 Jul

House Extensions

St. Albans - AL2

Enquiry from: Janna V

Start Date: Immediate

Double storey extension (8m x 1.5 m) including basic bathroom fittings

Post a similar request >

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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.

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.

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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St Albans House extensions installers are rated 4.4 out of 5 based on 7 reviews of 93 pros.
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 St Albans House extensions contractors
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