House Extensions

If your home is feeling short on space, adding a single storey extension can give you valuable extra room. Whether it's a kitchen-diner, bedroom, bathroom or study, we have different types of house extensions and roof options to suit any home.

You can select from uPVC or aluminium windows and doors in different colours and styles. Our quote includes planning permission, a complete technical survey, and all the building work. We take care of everything, so you don’t need to worry.

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What are Single Storey Extensions?

Solid roof extension with white uPVC French doors in open position
Single story extension with traditional tile roof and aluminium bifold doors
Gable end replica tile extension with French Doors
Solid panel roof extension with sliding patio doors
Solid panel roof extension with uPVC French doors
Dual anthracite grey extension with replica tile roof and French doors
Traditional tiled extension with white uPVC French doors
Replica tile extension conservatory with patio doors

A single storey extension is a solid-built extension attached to almost any part of the ground floor of your home. Every home extension is bespoke, creating a new space that seamlessly joins to the original house. Add extra space to an existing room or provide an entirely new room to your home.

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Types of House Extension

Your Anglian design consultant and surveyor will talk to you about the best way to extend your home. They consider structural points, such as groundwork, drainage, electrics, plumbing, and building regulations. All our extensions are bespoke, so if you can imagine it, we can create it.

Gable end extension with replica tiled roof and bifold doors

Rear Extension

A single-storey rear extension creates more space at the back of your home. They are ideal for creating a kitchen-diner or garden room. Add bifold doors to create a seamless transition between your home and garden.

Solid roof extension with aluminium bifold doors interior

Side Extension

Side extensions are a way to make the most of unused space at the side of your home. Enlarge your kitchen or add a convenient utility room. Make your space lighter and brighter with roof windows or French doors.

Dark woograin extension with solid panel roof

Wraparound Extension

As the name suggests, a wraparound home extension wraps around the side and back of your property. You can add a new room or link rooms together to create a new indoor-outdoor space to use throughout the seasons.

How Long Does a House Extension Take?

For a regular single storey extension, it can take three to four months from initial survey to completion. The installation itself should take three to four weeks. The time a home extension takes depends on its size, materials and whether or not you need planning permission. Our design team will discuss the estimated time with you before starting.

House Extension Roof Types

Replica tile harmony extension with French doors

Replica Tiles

Choose a replica tiled roof for your new extension or as an upgrade for your existing Anglian conservatory. Replica tiles are our most affordable extension roof option. Because they’re lightweight, they are ideal for extensions with more windows than wall supports.

Dual dark woodgrain French doors on traditional tile extension

Real Tiles

An extension with real tiles is only available for new structures. You can choose from six different tile colours from soft to bold hues. They include Anthracite, Antique Brown, Mosborough Red, Old English Dark Red, Smooth Brown, and Smooth Grey.

Anthracite grey solid panel roof extension with tilt and turn windows

Solid Roof Panels

You can use solid roof panels on a new extension. They are also an option for an existing Anglian conservatory. You can choose a complete solid panel roof or a combination of solid and roof glazing panels.

Extension Ideas

Kitchen Extension

Make your dreams of an open-plan kitchen-diner come true by creating a welcoming kitchen extension. Our team help you design a space to suit you, so you can cook and entertain in style.
Bedroom Extension

Boost the value of your property by up to 12% by adding a bedroom extension. A new bedroom at the side or rear of the house ensures your home continues to work for you as your family grows.
Bathroom Extension

Adding a ground floor bathroom or shower room can make a huge difference. An extra bathroom is great for busy families– especially for shortening queues for the shower in the morning.

Why Choose Us for your New Home Extension?

Planning Permission? Sorted

Planning permission isn’t required for most single storey house extensions. If it is though, we organise permissions and complete planning applications, taking on the hassle so you don’t have to. It’s all included in your quote.
Free Design Consultation

We're here to help every step of the way when it comes to choosing windows, doors, and roofing for your extension. Our design consultant will visit your home to discuss your plans and best use of your new space.
Long Guarantees

We provide a 10-year insurance-backed guarantee for the windows and doors of your extension. These products also come with a 15-year guarantee for sealed glass units. If you sell your home, you can transfer the guarantees to the new owner.

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Regency extension with replica tile roof and dual golden brown bifold doors

Compare Home Extension Designs at a Glance

Adding space to your home is an exciting process, but you might be wondering what the best approach is. Our guide can help you decide between a conservatory, orangery, or extension. Here are some of the main things to consider.

House Extension

Increase the space in your home without the hassle of moving.
Versatile and comfortable to use all year round.
Add value to your property with more rooms or make others bigger.

Conservatory

Conservatories make a light and airy extra reception room.
Creates a connection between your home and garden.
Design and customisation unique to your home.

Orangery

Orangeries create a space that you can use all year.
Roof glazing makes a room bright and airy.
Doesn’t usually need planning permission.

Reasons to Choose an Extension

Anthracite grey Edwardian extension with solar panel

Enjoy More Space

Adding more space to your home can completely change how you use it, whether that’s a new room or adding to an existing room. If you’d love a bigger kitchen or more space for entertaining, an extension can provide a much more affordable option than moving house.

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A Great Investment

An extra room or larger living space can add value to a property. A large kitchen-diner or an extra downstairs bathroom are desirable features for potential buyers, making them a good investment in case you decide to sell in the future.

See representative example

Year-round Use

When compared to a conservatory, an extension can give you a more versatile space that can be used throughout the seasons. You can still enjoy more natural light with the addition of windows and roof glazing, while taking advantage of better thermal efficiency.

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House Extension Gallery

Extension with Dual Dark Woodgrain French doors

Extension with Bi-Fold doors and garden view

Extension with White Knight uPVC French doors and windows

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Common Questions About House Extensions

How big can an extension be without planning permission?

Currently, an extension on a terraced or semi-detached house can project up to six metres from your home . For a detached house, it’s up to eight metres. An extension should not take up more than half of your land or be taller than your current roof. Our surveyor will confirm if the project needs planning permission, but if it does, we take care of it all for you.

How much does a home extension add to house value?

A home extension is one of the best ways to increase the value of your home. How much value it could add depends on size, position and its use. A single-storey extension is a popular way to increase the size of a kitchen or add a reception room. It can add 5-8% to the value of your home.

How much does an extension cost?

The cost of adding an extension to your home will depend on a few factors, including how large it is, the materials used, and any special details or features. Naturally, a larger extension using high-quality materials will generally cost more. With Anglian, we can provide a free no-obligation quote based on your plans and your home.

How do you extend a kitchen?

Depending on your home and your kitchen position, there are many ways to extend. Victorian terraces often have a narrow galley kitchen at the back with a small courtyard next to it. Many people choose to extend their terraced kitchen by adding a side extension or a wraparound extension. To expand your kitchen in a 1930s semi-detached house, add a single-storey extension with large patio doors at the back.

Do I need an architect for a home extension?

You don't have to hire an architect to build a home extension, but if it’s a big project this can help. Architects provide plans and guidance for homeowners and the builder you hire. Some building firms offer this too, but for more complex builds, it's a good idea to find an architect.