Everything You Should Know About Home Extensions

Are you looking to extend the space of your home and, at the same time, add value to the property? Then a home extension is definitely something you should consider. Home Extensions have different types and differ in cost. We have put together this brief guide on home extensions in order to answer the most important questions about this subject.

What is a Home Extension?

The term “Extension” in the building industry means to extend your existing property by building a room to make your home larger. Home Extensions have different types, such as Storey Extensions, Wrap-Around Extensions, Porch Extensions, Over Structure Extensions, Conservatory, and Loft Conversions.

Types of Home Extensions

Single Storey Extensions

This type of extension is perfect if you are looking to create a playroom, an extra office, or even expand the size of your kitchen. Judging by the name, they are only one level and are typically added to the rear (or side) of the property. With single-storey extensions, bi-folding doors are typically added, which results in connecting the house to the garden.

Getting a single-storey extension allows you to have two options for the roof; either a flat or a pitched roof. Not to forget, skylights are usually added to this kind of extension – and that gives the advantage of bringing the light into your home, making it airy and fresh.

Double Storey Extension

This is a similar extension to the single-storey one – but with a double-storey extension, you are more open to extending your property up to two floors, and that makes it perfect if you are in need of extra room space. This kind of extension adds excellent value to your property, and lots of property investors always consider this option. However, sometimes planning permission is required for this type of extension.

Wrap-Around Extension

A wrap-around extension is a combination of both a rear and side extension, forming an L-Shape around the house. This kind of extension gives you the opportunity to explore more space at your property. With a proper design & execution, you will get a larger and more aesthetic living space. Not to forget the extra light that will be brought into the centre of your home.

Porch Extension

If you have space around your home’s front door, consider using it to its full potential. A porch is a little structure that is built over your front door – providing a room between your home’s internal front door and the brand-new external front door. Even though the room is relatively small, it is still super beneficial as it provides you with; storage space, extra security, and better insulation.

Conservatory Extension

Getting a conservatory extension done is a great option to make the most of your outdoor space as they provide you with a connection between the home and the garden. With conservatories, factoring a bi-fold or a sliding patio door into the design is also possible. They are also brilliant for getting the maximum amount of natural light in your home.

Over-Structure Extension

Over-Structure extensions are built over the top of an existing such as the garage or the kitchen. Most homes in the UK have a single-storey garage to the side of the house, and that is why they are a very popular type of extension. Building on top of a structure allows you to have extra room in your home. One of the benefits of this extension is that you are not sacrificing any space to install the extension.

Loft Conversion

A loft conversion is another popular type of home extension. It is basically converting your loft into a liveable space. This way it will add more value to your home considering that you’d have more bedrooms, bathrooms, etc. The more size of the loft space, the better it is for you. Loft Conversions have so many types, such as hip-to-gable conversions, roof light/Velux conversions, dormer conversions, mansard conversions and L-shaped.

Costs of Home Extensions

The costs of home extensions differ depending on the type and size of your property. However, we will provide you with the average prices of how much home extensions cost.

  • The cost of a single-storey extension, on average, is £2,000 per square meter.
  • The cost of a double-storey extension, on average, is £1,500 per square meter.
  • The cost of a wrap-around extension, on average, is £2,500 per square meter.
  • The cost of a porch extension, on average, is £650 per square meter.
  • The cost of a conservatory extension, on average, is £1,800 per square meter.
  • The cost of a loft conversion extension differs depending on what kind of loft conversion you are getting. On average, it ranges between £50,000 to £100,000 to get your loft conversion carried out.

How long would it take to build a home extension?

Since home extensions are a very involved and rigorous construction work, it could take up to 10 to 20 weeks to get your extension completely done. However, it still depends on the type of extension you are planning to build.

We can get you a free home extension quote – just make sure to send us a message through our contact page or call us at 020 3897 0775.

How much value will home extensions add to a property?

You can add up to 12% value only from building home extensions, so it is a great investment you might want to consider. So if you are asking if is it really worth it to build a home extension, the answer is yes, it is.


A home extension could help you to achieve that cohesive open-plan living and dining space you have always envisioned, bring your child’s dream playroom to life, or even create vital storage space. Rather than moving into a new home, create a new space designed that is created to your exact needs to accommodate you and your family.

Whatever you envision, our in-house design team will work with you every step of the way to bring it to life. We will consider your needs in regard to space, functionality, budget and timeline. You will be assigned a project manager and on-site foreman who will inform you of our progress and plans during every step of the process.

With our 20+ years of experience in undertaking comprehensive home extension projects in the London area, you can trust in our expertise and exceptional standards of construction and finish to transform your home and lives for the better.


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