These inspiring extensions create kitchens that interact directly with their outdoor spaces, softening the boundaries between the interior and exterior of the homes. 

 modern extension with large glazing opening out onto garden - grand designs

Image: Darren Chung 

The growing popularity of large glazed doors isn't solely about bringing natural light into the home – it's also about having the opportunity to open up your home to join it with your outside space in warm months. 

These 4 homes each have intriguing kitchen extensions which embrace open-plan living inside and outside. 

Opening up 

 kitchen architecture single storey extension - grand designs

Image: Darren Chung 

A single-storey extension has created room for a generous kitchen-diner created by Kitchen Architecture. Sliding glass doors allow the long, rectangular extension to open up to the outside space more than most, for indoor/outdoor living in the summer months. 

Visual cues  

kitchen with large crittall windows looking out onto landscaped garden - grand designs - extensions

Image: Ade Architecture

While this rear extension by Ade Architecture connects to the garden with more defined steel-framed doors by Clements Windows, the continuation of brick on the walls from outside to in, and the zoning created by the garden landscaping helps the outdoor space feel like an extension of the kitchen. 

Material choices 

 thatched cottage with modern glass box extension - grand designs

Image: Darren Chung 

This modern glass box extension by James Price Bespoke Structural Glazing uses seamless walls of glazing and sliding doors brings the outside in and offers a sympathetic addition to a traditional thatched cottage. Inside, minimalist cabinetry design by Kitchen Architecture ensures the garden remains the focal point of the space.

A flooring style, traditionally used outdoors, has been used in the kitchen to suggest it's a part of the garden, rather than the house. 

Outside spaces

kitchen extension with large overhead glazed roof - grand designs

Image: AR Design Studio

A frameless glass extension by AR Design Studio is made from 12mm outer sheets of toughened glass and supported by low-iron, solar- control coated glazing to reduce heat build up. The large doors provide natural ventilation when open, but even closed, the space feels as though part of the house is in an external courtyard. 


Which of these indoor outdoor spaces do you like most? Let us know by tweeting us @granddesigns or posting a comment on our Facebook page



How to plan a wraparound home extension

4 real houses with living plant walls

How to pay for a home extension

Kevins Column

Top self build highlights at Grand Designs Live 2019 hosted by Kevin McCloud

Find top experts, specialist exhibitors and a wealth of inspiration for your self-build or renovation project all under one roof.

4 real extensions that blur the lines of in and outdoors

These modern extensions have design features that emphasise the space opening out onto glorious gardens.

A two-storey extension with an optical illusion 'floating' pod

Explore this creative two-storey extension which uses an exterior cladding as a decorative finish inside.

How to plan a wraparound home extension

Combining a rear and side extension requires specific planning and research, but can pay dividends in adding space to your home.

Period property extensions: how to blend old and new

Enhance the special character of an old home with a beautifully designed extension

How to brief a builder on a home renovation project

Before you start your build, lay the foundations with a strong brief to your builder. Here's how...

Discover this cottage extension with a difference

Take a look at this impressive cottage extension made from wood and salvaged materials.