Top 7 Interior Design Styles For Your Garden Annexe In 2025

Garden annexes have evolved into much more than just practical outbuildings – they’re complete, comfortable living spaces designed to suit a wide range of lifestyles. Whether you’re creating a stylish Airbnb, a private guest house, or an independent residence for a family member, the interior design you choose plays a vital role in shaping the atmosphere and functionality of your annexe.

Here are seven of the most popular interior design styles to help you visualise your ideal finished space.

Scandinavian Simplicity

This timeless design is perfect for compact garden annexes, offering a bright, clean aesthetic with plenty of natural light.

Scandinavian interiors use white or pale walls, soft neutral tones, and natural wood textures to create a calm and functional space. It’s ideal for guest accommodation or longer-term living where space and light are key.

Modern Rustic

Modern rustic interiors blend comfort with character – think exposed timber accents, cosy textures, and contemporary fittings. This style creates a homely feel that’s ideal for annexes used as full-time residences.

It offers warmth and charm with a modern edge, appealing to those who want their annexe to feel inviting and full of personality.

Japandi Fusion

A growing favourite in 2025, Japandi design combines the minimalism of Japanese interiors with Scandinavian warmth. Earthy tones, simple lines, and natural materials make this style ideal for peaceful, clutter-free living. For garden annexes serving as calm, self-contained homes or quiet retreats, Japandi delivers a serene, modern space.

Industrial Chic

For those looking to make a statement, industrial chic brings urban style into the garden. Using materials like concrete, steel, and matte finishes, this look suits annexes used as stylish Airbnb rentals or contemporary guest houses. Add bold lighting, exposed fixtures, and striking furniture to create a space that stands out.

Biophilic Design

Biophilic interiors are all about enhancing wellbeing by connecting with nature. This style uses natural materials, indoor plants, timber finishes, and large windows to draw in the outdoors.

It’s a perfect choice for wellness-focused living or nature-inspired guest spaces where relaxation is key.

Pop of Colour

Injecting colour into your garden annexe is a bold and playful choice. A feature wall, vibrant furniture, or colourful tiles can bring personality and energy to the space.

This works particularly well in Airbnb properties or guest accommodation where you want to make a memorable first impression.

Coastal Calm

Inspired by the British coastline, this style embraces sandy neutrals, sea blues, and light, breezy fabrics. Wicker accents, soft linens, and simple décor give a relaxing, holiday-home feel. Whether you’re designing a short-stay rental or a peaceful independent living space, coastal calm adds a sense of escape.

At Hawksbeck Annexes, we build every annexe bespoke to your lifestyle, taste, and plot. Whether you’re dreaming of a Scandinavian-style studio or a colourful creative hub, our expert team manages everything. Call us today on 01277 414586 to find out more.