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18 stunning kitchen diner extension ideas to transform your home

The number of kitchen diner extension ideas out there is vast. In this post, we showcase 18 ideas that underline some of the key considerations to make when planning your dream kitchen diner extension.
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Kitchen diner extensions are well worth it: adding value to your property, providing much-needed extra space, and improving the way in which you enjoy your home.

However, it’s not a cheap exercise (although arguably cheaper than moving house) and you can expect a fair amount of disruption while the work is taking place.

Before embarking on your kitchen diner extension, take the time to research your options (remember to factor in your budget!), create a wish list of features, and collate a mood board of ideas. This will help to ensure the end project doesn’t disappoint!

In this post, we’ll cover a number of different ideas to help inspire your project, including small kitchen diner ideas, long kitchen diner ideas, terraced house extensions, and everything in between.

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Kitchen diner extension ideas to help you reimagine your home

Kitchen diner extensions come in all shapes and sizes depending on the type of home you own, what you want to get from an extension, and your own personal style and preferences.

This gallery of ideas for a kitchen diner extension will help to get your creative juices flowing and build on your vision for your upcoming home renovation.

1. Wraparound extensions

Wraparound extension

A wraparound extension encompasses both the side and rear of the property, creating an L-shaped space to maximise your square footage.

One thing to bear in mind is there’ll typically be one wall area that’s a little darker towards the back of the room, so use this for storage and utility units and position your dining and socialising areas nearer the garden to maximise the natural light.

2. Side return extensions

Side return with vaulted ceiling and skylights

In a terrace property, a side return extension can often double the size of the existing kitchen. A vaulted ceiling with roof lights will add height and light to your new space.

This homeowner has carefully considered every detail, choosing graphite window frames to enhance the overall kitchen aesthetic.

Side extension in detached property

In a detached property, there are numerous options to extend to the side of your property, the only constraint being planning permission; especially important if you live in a listed building or conservation area.

As with all kitchen diner extensions, really think about what you want it to deliver and work with a qualified architect to ensure those requirements are incorporated into the design. For example, many homeowners want a laundry or utility room as part of their extension plans.

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3. Full-width rear extensions

Full-width rear extension on semi-detached property

In a semi-detached house, many homeowners maximise the available space by creating a kitchen diner extension across the full width of the rear of their property.

This homeowner has opted for stylish bifold doors to open up the space and bring in plenty of light.

4. Flat roof extensions

Rear kitchen diner extension with flat roof and roof lanterns

How you bring natural light into your kitchen diner extension is a key consideration to avoid the space being dark. For example, with a flat roof extension, carefully placed roof lanterns will be used to bathe the room in light.

5. Define kitchen diner zones

Kitchen diner extension with zoned areas

In an open-plan kitchen diner, you may choose to create defined areas with your choice of decoration.

For example, this homeowner has chosen floor tiles in the cooking area and installed wood flooring in the dining area to create two distinct zones in one room.

Colour block kitchen diner

Alternatively, keep the flooring consistent throughout and define the different spaces with colour-blocking. Here, the cooking and dining area is defined by the dark graphite decor, with a sociable lounge area in white.

6. Make a feature of structural elements

Kitchen diner extension with exposed beam

Whether an exposed structural steel, original beam, or internal brick wall, these elements can add charm, personality, and interest to your kitchen diner extension; don’t always rush to cover them up.

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7. Long kitchen diner ideas

Kitchen diner with floor to ceiling storage

Long kitchen diner ideas will cleverly use the vertical space to maximise the room’s potential. Creating a run of tall wall units that reach right up to the ceiling provides much more storage in a long kitchen, helping to keep surfaces clutter-free.

While this kitchen looks super sleek and stylish, it also scores high in the practicality and sociable stakes:

  • The floor is low maintenance and easy to keep clean. It also blends with the outside flooring to increase the sense of space
  • The position of the fridge makes it easily accessible for children without getting too close to the more dangerous hob and cooking area
  • The breakfast bar stools create an area for informal dining
  • The extended island unit with pendant lighting and plenty of seating creates a sociable setup for entertaining guests

8. Include a worktop peninsular

Kitchen diner worktop peninsular

The addition of a worktop peninsular will help to zone the space between cooking and dining, add extra storage and workspace, and create an additional breakfast bar for informal dining.

9. Room dividers for large kitchen diner extensions

Room dividers in an open plan kitchen diner extension

In a large kitchen diner extension, you may feel the need to divide up an open plan space with glazed doors or room dividers to ensure each area feels homely.

Room divider in a kitchen diner extension

This can be especially important from a functional point of view. If you work from home or have children, the ability to temporarily close off areas of an open-plan living space could be a godsend.

Installing crittall-style glass partitions allows you to section off part of the kitchen diner without compromising on the amount of light you allow in.

10. Glass extensions

Conservatory kitchen diner extension

Popular glass extensions include conservatories and orangeries for a beautiful light-filled space with uninterrupted views of your outside space.

Orangery extension

However, the trade-off is losing valuable wall storage on the glazed wall. Therefore careful planning is needed with the internal layout to ensure you have adequate space for everything.

11. Go big on glazing

Glazed kitchen diner extension

Another option to bathe your kitchen diner extension in light is to include plenty of glazing.

This homeowner has opted for full-width, floor-to-ceiling glazing that extends right up into the vaulted ceiling for dramatic appeal.

Glazing in a long kitchen diner extension

In this long, narrow kitchen diner extension, the French doors and roof skylights allow plenty of light in to avoid it looking dark.

12. Kitchen diner extension ideas that frame the view

Rear kitchen diner extension

When planning your kitchen diner extension, consider the layout of the space to optimise the view.

For example, position the table near your glazing so diners can enjoy views of the outside space. This homeowner has even ensured the breakfast bar stools have the best aspect.

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13. Small kitchen diner ideas

Open plan kitchen and living space

In a small kitchen diner extension, increase the feeling of space by removing the internal wall between an existing kitchen and dining room. It goes without saying, you’ll need to hire a structural engineer before embarking on this project.

If possible, install French doors, bifold doors, or sliding doors to help open up the space and bring in lots of natural light.

14. What’s on the outside?

Glass box kitchen diner extension on traditional Victorian terrace property

Just as you can be playful with the interior of your new kitchen diner extension, an architect can help to explore the possibilities with the exterior design.

Here, this contemporary glass box kitchen diner extension sits beautifully against the original brickwork of this Victorian terrace.

15. Add an island in your kitchen diner extension

Contemporary kitchen diner extension with a central island

A kitchen island is an ideal focal point in a kitchen diner extension, a practical space for additional storage, and a functional feature for dining and socialising too.

16. Creative ideas for your kitchen extension

Open shelving instead of wall units in a kitchen

One of the great things about building a kitchen extension is you can really put your stamp on it.

Whether you stick to a particular style, for example, contemporary or farmhouse, or a mix of styles and materials for something more eclectic, this is your opportunity to create your dream kitchen.

We love how this kitchen diner extension is approached from a different level and how the homeowner has opted for open shelving in lieu of wall units.

17. Colourful diner kitchen ideas

Navy kitchen

Navy or grey kitchen cabinetry is super popular, but if you prefer to keep the key components of your kitchen neutral, there’s plenty of scope to add pops of colour to your kitchen diner in other ways.

Your choice of wall tiles, wall paint, accessories, and soft furnishings all provide the opportunity to add some accents to the space.

18. Add ambient lighting

Stylish lighting in a kitchen diner extension

Pendant lights above a kitchen island or dining table are popular within kitchen diner extensions, teamed with appropriate task lighting for food prep areas.

Tip: If you don’t have dimmable bulbs, select the appropriate lumens to ensure you create the right ambience in your kitchen diner extension.

With plenty of ideas for your kitchen diner extension, you may be ready to move on to the next steps in your renovation plans.

We have a selection of other blogs to help you:

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