• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
The Garden Room & Annexe Guide Logo
Swift UnlimitedExplore what’s possible
Bespoke Living AnnexesAward-Winning Designs15 Year WarrantyOver 18 years’ experience5 Star ReviewsFully Bespoke or Straight to SiteFriendly, Flexible and Capable ServiceComplete turnkey service — Design, Planning, BuildingYour Life, Your Choice, Your HomeSafe, Secure and Trusted
The Garden Room & Annexe Guide Logo
Swift UnlimitedExplore what’s possible
Bespoke Living AnnexesAward-Winning Designs15 Year WarrantyOver 18 years’ experience5 Star ReviewsFully Bespoke or Straight to SiteFriendly, Flexible and Capable ServiceComplete turnkey service — Design, Planning, BuildingYour Life, Your Choice, Your HomeSafe, Secure and Trusted
  • 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
          • What Is an Annexe?
          • How to Build a Granny Annexe
          • Planning and the Caravan Act
          • How Much Does a Granny Annexe Cost?
          • Renting a Granny Annexe
          • Council Tax on a Granny Annexe
          • Granny Pods
          • Annexe Show Sites
          • Ex-Display and Second-Hand Annexes
          • Granny Annexe Projects
  • Price Guides
        • Garden room prices
          • How much does a garden room cost?
          • Garden room price calculator
          • Cheap garden rooms
          • Garden rooms £10,000–£20,000
          • Do garden rooms add value?
        • Annexe prices
          • How much does a granny annexe cost?
          • Council tax on a granny annexe
          • Ex-display and second-hand annexes
          • Renting a granny annexe
        • Paying for it
          • Garden room finance options
          • Protecting your investment
          • Special offers
        • Other ways to buy
          • Second-hand and ex-display
          • Renting a garden office
  • 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
Annexe project · Executive Garden Rooms

47sqm L-shaped annexe

A one-bedroom home built for a client’s father, its L-plan turning the bedroom and living room to face into the garden rather than the fence.


Published 14 October 2021 · Updated 30 September 2026 · 3 minute read · Written by The Garden Room & Annexe Guide

Exterior of a 47sqm L-shaped annexe
Executive Garden Rooms  47sqm, one bedroom, L-shaped

This stylish self-contained garden annexe was designed and built by Executive Garden Rooms. Their client commissioned them to create a one-bedroom home in his garden for his father.

Unlike many other companies, Executive Garden Rooms manage the entire project on behalf of their clients. This comprehensive service includes the initial design, managing the planning application process, installing the foundation, and completing the groundworks required to connect the annexe to mains services. The Executive team then build the annexe, handling everything including the final decoration and fitting the kitchen and shower room. They also ensure the works are signed off by Building Control.

At a glance

  • Size: 47 square metres — double bedroom, shower room, storage cupboard and a multifunctional living space, arranged in an L.
  • Why the L: it puts windows in both the bedroom and the living room looking into the heart of the garden.
  • Glazing: French doors with glazed side panels in the living room; a separate single door into the kitchen for everyday coming and going.
  • Water: a pressurised system with a 125-litre cylinder, so the shower holds its pressure while the main house is using water.
  • Cladding: Western Red Cedar on the front elevations, UV-oiled to hold its colour, with dark grey Cedral on the others.
  • Company: Executive Garden Rooms, who run the whole project — design, planning application, foundation, groundworks and the mains connections.

Part of our one-bedroom annexe guide →

Visit the Garden Annexes 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 →
Layout

L-shaped annexe

The annexe covers a footprint of 47m². The accommodation includes a double bedroom, shower room, storage cupboard, and multifunctional living space, all arranged in an L-shaped configuration.

The L-shaped design allows the bedroom and living room to have windows that look into the heart of the garden.

The main living room features French doors with glazed side panels, creating a wide expanse of glazing that floods the room with natural light.

Main living room in an Executive Garden Rooms annexe
The living room  French doors with glazed side panels

For day-to-day access, a single door has been fitted, leading into the kitchen area.

Day to day access door on a self contained living annexe
The everyday door  straight into the kitchen
Inside

Annexe designed for easy living

As seen in the images, the annexe is a light, modern living space. The walls and ceiling have been plastered and decorated, complemented by waterproof Quickstep Livyn flooring.

Double bedroom in a Executive Garden Rooms annexe
The bedroom

The well-equipped kitchen was customised to the client’s preferences. In this case, a high-gloss kitchen includes plenty of storage, a single oven, induction hob, extractor fan, and an integrated fridge/freezer.

Well equipped kitchen in an a self contained annexe
The kitchen  high gloss, built to the client’s brief

The shower room is equally well-appointed, featuring a contemporary vanity unit and toilet. The shower has a low-profile tray with a glass sliding door, and instead of tiles, funky shower board panels have been installed. The room is finished with an extractor fan and an electric towel radiator with a thermostat.

The garden annexe has a spacious well-equipped annexe
The shower room
Spacious shower room with contemporary fittings
Contemporary fittings  shower board panels instead of tiles

A pressurised water system has been installed, with a 125-litre cylinder ensuring a powerful shower experience, even if water is being used in the main house at the same time.

The cylinder is housed in an airing cupboard, which is also spacious enough to serve as additional storage.

The electrical specification includes heating, a hardwired internet connection, two smoke alarms, recessed LED downlights, an external security light, and plenty of power sockets.

Outside

Low-maintenance exterior finishes

Externally, the annexe has been clad in two low-maintenance finishes. The front-facing elevations feature Western Red Cedar, a popular material in garden room design. The Cedar has been treated with a UV oil to help maintain its reddish-brown colour. Left untreated, it would naturally weather to a silvery grey over time.

The other elevations are clad in Cedral, a cement fibreboard available in a variety of colours. The choice of dark grey pairs beautifully with the rich, natural tones of the Cedar.

The colour pigment is baked into the Cedral during the manufacturing process, so it doesn’t require painting to maintain its appearance.

Self-contained living annexes like this one are not only ideal for elderly parents but also for families with young adults who are finding it difficult to get onto the property ladder.

Planning something similar?

Learn more about Executive Garden Rooms

To learn more about creating a self-contained living annexe, contact the Executive Garden Rooms team on 01202 874 766 or email them at info@executivegardenrooms.co.uk. Visit the Executive Garden Rooms website to learn more about their buildings.

Visit Executive Garden Rooms More Executive Garden Rooms projects
More projects like this Granny annexes One-bedroom annexes 45–55 sqm annexes
Read the guides Garden annexes: the complete guide What an annexe costs The Caravan Act route Granny pods

Published 14 October 2021 · Photographs courtesy of Executive Garden Rooms.

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
Warwick Buildings Warwick Buildings Garden Rooms
Garden Rooms
From £7,750 including VAT, delivery and installation
Insulated for year-round use 21 buildings on show near Southam Flat, pitched & curved roof designs 10-year guarantee Online design & price configurator Made in Warwickshire since 1988 100mm walls, five layers thick
See garden room options
Visit the Bridge Garden Rooms website
ARK
Bespoke Garden Annexesacross the South East
Planning & building regs handled Self-contained homes Bespoke to your needs Independent living, close to home Ideal guest accommodation Fully project-managed build Fitted kitchens & bathrooms Insulated for year-round living Light-filled, open-plan living Handcrafted quality throughout Full-height glazing & bifolds One team, from design to completion
Learn more about our annexes →
Excellent ★★★★★Trustpilot
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 →
Cosy Garden Rooms
FAST INSTALLATIONS FULLY INSULATED 10 YEAR GUARANTEE
Bespoke Garden Rooms
Get Your FREE Quote
SIPS Garden RoomsOne-bedroom & studio annexes
Design
Approvals
Build
Handover
A home for one,
designed from scratch.
Its own kitchen, bathroom and bedroom, or one open-plan room.
Never adapted from a template, so it fits your garden.
Planning permission applied for and managed on your behalf.
A fixed written price before any work starts.
See annexe projects
Crusoe Garden Rooms
Garden Rooms
Cedar garden rooms,
built by hand on site
From £18,750 inc. VAT · base extra Hand-built on site, not prefabricated More than 350 garden rooms built Western Red Cedar as standard Electrical connection included Free site visit, in person or by video Building across the UK from Nottingham
See the Crusoe range

One-bedroom annexes from £85,000

A one-bedroom annexe, installed complete.

  • Open-plan kitchen and living space
  • Double bedroom, walk-in shower room
  • Designed around your garden
See one-bedroom annexes

The Green Room · 01536 358387

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