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

Upgrade the colour of your new conservatory for free! Finish your conservatory in style with our solid, dual colour and woodgrain options.

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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.

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FREE SOLAROOF UPGRADE

Upgrade your new conservatory with a FREE Anglian Solaroof. Our unique glass roof blocks 98% of UV rays compared to standard glass.

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Extension Ideas

  • kitchen extension interior

    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.

  • Georgian style uPVC casement bedroom window in White design inspiration from Anglian Home Improvements

    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.

  • Wooden casement window in white with frosted glass and lead bars from the Anglian windows range

    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?

  1. 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.

  2. 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.

  3. 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.

Dark woograin extension with solid panel roof

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.

White uPVC Elizabethan conservatory with solar roof

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.

White uPVC Edwardian Orangery

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.

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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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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.

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Our Accreditations and Licenses

  • Logo for the British Standards Institute ISO 9001 quality management systems certification
    Sets standards that ensure our products and services meet customers’ requirements.
  • BSEN 1279 Accreditation
    For materials used and water resistance on all sealed units.
  • BSEN 12150 toughened safety glass Kitemark accreditation
    For impact resistance and glass fragmentation on safety glass.
  • BSEN12608 Windows and Doors accreditation
  • British Board of Agrement conservatory accreditation
    The British Board of Agrement provides certification on the quality of our products.
  • The Glazing Arbitration Scheme Logo Anglian Home UK
    Independent service that deals with disputes between registered businesses and consumers.
  • Made in Britain logo
    Certifies products made from start to finish in a British factory by British craftspeople.
  • TrustMark is a government endorsed not-for-profit organisation that operates through more than 30 scheme operators.
  • The Conservatory Association logo
  • Recovinyl Plus logo
    PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices
  • MyGlazing.com provides free, independent advice on all your glazing needs.