• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
The Garden Room & Annexe Guide Logo
Visit the Swift Unlimited website
  • Buyers Guide
        • Introduction
          • What is a garden room?
          • How to buy a garden room
          • Buyers doubts
          • Pre-designed garden rooms
          • Modular garden rooms
        • Rules & Regulations
          • Garden Room Planning Permission Guide
          • Permitted Development Overview
          • Building Regulations
        • Build & Installation
          • Off-site construction
          • Complete on-site builds
          • Garden rooms can be craned in
          • Garden room shell builds
          • Turnkey projects
        • Design Consultations
          • Start designing your garden room
          • What to expect from a design consultation
          • Buying a garden room online
          • Comparing garden room quotes
  • Garden Rooms
        • Examples By Company
          • A to Z of Companies
        • Examples By Use
          • Small Garden Rooms
          • Garden Offices
          • Garden Gyms
          • Art & Creative Studios
          • Soundproof Garden Studios
          • Granny Annexes
          • Explore More Uses
        • Examples by Design Feature
          • With Storage Room
          • With Toilet or Shower Room
          • With Composite Cladding
          • With Canopy
          • With Covered Seating Area
          • With Pitched Roof
  • Garden Living Annexes
        • By Footprint Size
          • Less than 25sqm
          • 25sqm to 35sqm
          • 35sqm to 45sqm
          • 45sqm to 55sqm
          • 55sqm and Above
        • By Room Layout
          • Garden Bedroom
          • Open Plan
          • One Bedroom
          • Two Bedroom
          • 3 and 4 Bedroom
        • Useful Guides
          • How Much Does a Granny Annexe Cost?
          • Visit Annexe Show Buildings
  • Price Guides
        • Price Guides
          • Garden Room UK Price Guide
          • How much do garden rooms cost?
          • How much do bespoke garden rooms cost?
          • How Much Does a Granny Annexe Cost?
          • Do Garden Rooms Add Value to Your Home?
        • Budgeting & Payments
          • Setting a budget for a garden room
          • Maximise your budget
          • Paying for a garden room
          • Protecting your investment
        • Finance & Deals
          • Garden room finance options
          • Renting a Garden Office
          • Second-hand garden rooms
          • Special Offers
  • Directory
  • About Us
        • About Us
          • Our Story
          • Work With Us
          • Newsletter
        • Contact Us
          • Our Contact Details
        • Website Policies
          • Revisit Your Cookie Settings
          • Cookie Policy
          • Privacy Policy
          • Acceptable Use Policy
          • Website Terms of Use
  • Your Guide

3-Bedroom Garden Annexe

3-Bedroom Garden Annexe

First Published: 8 October 2023

Refreshed: 27 September 2024
Reading Time: 3 minutes 3 seconds

A Room in the Garden has built a reputation for designing custom mobile homes tailored to individual client needs. As demonstrated by the projects below, every building they design takes into account the space available and the lifestyle preferences of the client. The outcome is a modern dwelling that is comfortable for long-term living.

Uniquely shaped A Room in the Garden mobile home

Uniquely shaped annexe

Click to learn more about this annexe

Open plan mobile home by A Room in the Garden

Open plan annexe

Click to learn more about this annexe

Annexe designed to compliment the main house

Annexe designed to compliment the house

Click to learn more about this annexe

2 bedroom 2 bathroom annexe by A Room in the Garden

2 bedroom, 2 bathroom annexe

Click to learn more about this annexe

They have recently completed a three-bedroom garden annexe, which has been designed as a home for a mother and her child set within their family's large garden. This annexe allows the extended family unit to relish the benefits of living together while still preserving personal independence and privacy for all members.

The annexe was built on sloping ground

The 3-bedroom annexe, designed by A Room in the Garden, complies with the mobile home guidelines specified in the Caravan Act. Opting for this avenue offers an alternative to the traditional route of applying for planning permissions for an annexe. The projects they have designed, as linked above, exhibit the range of architectural possibilities available under these rules.

Positioned to one side of the spacious family garden, the annexe guarantees that both the main house and the annexe itself enjoy uninterrupted views into the heart of the garden. The choice of floor-to-ceiling glazing in the annexe ensures a seamless integration between the indoor and outdoor spaces.

The annexe sits to one side of the garden

Open-Plan Kitchen and Living Room

The accommodation has been arranged to create a large open-plan kitchen and living room. As the photos demonstrate this is a wonderfully light space thanks to the arrangement of glazing on two elevations and the inclusion of two large skylights in the living room.

The open plan kitchen living space is wonderfully light
The main living space has a spacious feel

The light bounces off the crisp plastered and decorated walls and ceilings and the laminate flooring. The supporting wooden roof beam complements the wood finishes used in the kitchen.

The kitchen living room area has a higher ceiling height than the rest of the annexe, which adds to the generous feeling of space in this room.

Rather than have the washing machine etc in the main kitchen, a discreet utility room has been created. This functional space houses all the necessities for running a family home but keeps them out of view of the prominent living spaces. The utility room has external access which includes a cat flap for the feline family members.

A Room in the Garden have designed a utility room into the annexe

Family Bathroom with Bath and Shower

Often with garden annexe buildings you will see compact shower rooms incorporated, but with this design, A Room in the Garden have created a generous family bathroom that incorporates both a bath and shower.

The family bathroom features both a bath and a shower

A Room in the Garden works with clients to decide the bathroom layout, style of sanitaryware and the tiles and finishes used.

This bathroom has a wonderfully light feel thanks to the large skylight positioned over the shower and bath. The owners will be able to lay in the bath and gaze at the clouds or stars!

A large skylight floods the bathroom with natural light

Three Spacious Bedrooms

Three bedrooms good-sized bedrooms have been incorporated into the annexe. One of the bedrooms is used as a music room as the owner is a music teacher. This room has an external access door, so students can visit without having to go into the heart of the annexe. This is a thoughtful design detail by the A Room in the Garden team and showcases how they take time to understand how you plan to use the building.

One bedroom is used as a music room
Bedrooms have a lovely connection with the garden

Another large skylight has been used in one of the bedrooms, this time positioned over the bed ensuring that rooms even at the rear of the annexe are wonderfully light spaces.

A large skylight has been incorporated in one bedroom

A Combination of Exterior Finishes

Externally the annexe features both timber and corrugated metal finishes. Vertical timber cladding has been fitted on the two most prominent elevations with dark grey corrugated metal cladding used on the remaining walls. Both finishes offer a long low-maintenance finish.

Timber cladding has been used on the most prominent elevations

Enhancing the contemporary style of the annexe, decorative slatted panels have been used on the front elevation. The stained timber creates a subtle colour difference with the main wall cladding.

A Room in the Garden incorporate exterior lighting into their designs

Exterior lighting has been incorporated into the design. Positioned to on each side of the doors and windows, the lighting is not only practical but adds a different dimension to the building at night.

A Room in the Garden incorporate exterior lighting into their designs

The ground where the annexe was built was uneven. The groundscrew foundation system that A Room in the Garden uses overcame this sloping ground with ease to create a level base for the annexe.

A Redwood deck has been fitted to create level access into each room and this has been detailed to hide the groundscrew foundations. Steps have been incorporated into the deck.

Learn More

To learn more about creating a garden annexe that complies with the mobile home rules, chat with the A Room in the Garden team on 01273 80 70 77 or email them: hello@aroominthegarden.co.uk. Explore aroominthegarden.co.uk to see more of their work.

Visit the Garden Spaces website
Visit the Timeless Garden Rooms website
Visit the Garden2Office website
A self-contained annexe
in your garden
No planning permission
required in most cases
Kitchen, bathroom & bedroom
— a home from day one
Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
Explore annexes →
Visit the Modern Garden Offices website

Primary Sidebar

Visit the Garden Annexes website to explore their homes in the garden
Visit the Garden Spaces website
Visit the Bridge Garden Rooms website
Visit the Ark Design/Build website
Visit the Modern Garden Rooms website
A self-contained annexe
in your garden
No planning permission
required in most cases
Kitchen, bathroom & bedroom
— a home from day one
Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
Explore annexes →
Explore the Cosy Garden Rooms website to learn more

Useful Links

Planning Permission Guides

A to Z of Companies

Garden Rooms

Garden Living Annexes

Garden Room & Annexe Directory

Contact Us

Contact Us

Work with Us

Website Policies

© 2026 The Garden Room & Annexe Guide. All Rights Reserved.
The Garden Room & Annexe Guide is powered by the team at Square Meter Media Limited