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Garden annexe project · Executive Garden Rooms

Self-contained garden annexe

A 7m × 4.7m one-bedroom garden annexe in Bristol by Executive Garden Rooms, with an open-plan living area and kitchen, and a bedroom with an en-suite shower room.


Published 3 August 2017 · Updated 31 October 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

Self-contained garden annexe
Executive Garden Rooms  7m × 4.7m one-bedroom garden annexe in Bristol, before landscaping

Executive Garden Rooms have built an impressive portfolio of self-contained garden annexe buildings. This one-bedroom annexe was constructed for clients in Bristol, positioned at the end of their garden.

Measuring 7 metres by 4.7 metres, the annexe offers an open-plan living space complete with a well-appointed kitchen at the rear. From the main living area, there is access to a bedroom featuring an en-suite shower room.

At a glance

  • Size: 7m × 4.7m, at the end of the clients’ garden in Bristol.
  • Layout: An open-plan living area with the kitchen at the rear, and a bedroom off the living area with its own en-suite shower room.
  • Light and air: French doors flanked by opening windows rather than fixed panes, and a narrow floor-to-ceiling window that lights a dining spot by the kitchen.
  • Approvals: Planning permission and Building Regulations approval, with Cedral cladding used because the annexe sits within 1m of the boundary and is over 15 square metres.
  • Company: Executive Garden Rooms, who managed both applications and carried out the groundworks to connect the annexe to mains water and drainage.

Part of our one-bedroom annexe guide →

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Living area

Bright, modern interior

The living area is bright and welcoming, thanks to a set of French doors on the front façade. These doors are flanked by glazed panels, which, unusually, feature opening windows instead of the typical fixed panes. This design choice allows greater control over ventilation, enhancing comfort in the space.

One bedroom granny annexe
The front  French doors flanked by opening windows, before landscaping
Kitchen

Kitchen dining area

A thoughtful design feature is a narrow, floor-to-ceiling window on the side wall near the kitchen. This ensures that the kitchen benefits from natural light, making it an ideal spot for a dining table.

The kitchen is fully equipped with essential appliances, including a cooker, hob, extractor, sink, and fridge, along with ample storage in the form of cupboards and drawers. A generous work surface provides practical preparation space, while a water heater fitted under the sink offers on-demand hot water.

Windows in a one bedroom garden annexe
Floor-to-ceiling window  lighting a dining spot beside the kitchen
Kitchen in a granny annexe
The kitchen  cooker, hob, extractor, sink and fridge
En-suite

Well-specified en-suite

The en-suite shower room is well-specified and complements the living space. Executive Garden Rooms undertook significant groundwork to connect the annexe to the mains water supply and drainage. As part of their turnkey service, these extensive preparations were included in the overall project cost-an aspect not always covered by other garden annexe providers, as it requires considerable effort and contributes notably to the budget.

Shower room in a self-contained garden house
The en-suite shower room
Planning and Building Regulations

Planning Permission & Building Regulation compliant

This self-contained garden annexe required both Planning Permission and Building Regulation approvals. Executive Garden Rooms manage these applications for their clients, ensuring a seamless process.

Due to its placement within 1 metre of the boundary and exceeding 15 square metres, the annexe needed to be constructed using non-combustible materials to meet Building Regulations. Executive Garden Rooms utilised Cedral boards for exterior cladding, a durable, cement-based material available in various colours. Unlike wooden cladding, Cedral boards require no painting and retain their appearance over time.

Guttering on a granny annexe
Guttering
Cedral cladding was used on this garden annexe
Cedral cladding  non-combustible, as the annexe sits within 1m of the boundary

Safety features include smoke alarms connected to the main house as part of the comprehensive electrical package, which also encompasses LED ceiling downlights and integrated heating.

Planning something similar?

Learn more about Executive Garden Rooms

Discover more about building your ideal garden living annexe by speaking with the Executive Garden Rooms team on 01202 874 766 or emailing info@executivegardenrooms.co.uk. For further details, visit their website.

Visit Executive Garden Rooms More Executive Garden Rooms projects
More projects like this Garden annexes One-bedroom annexes 25–35sqm annexes Composite cladding
Read the guides What garden rooms cost Permitted development What is a garden room?

Published 3 August 2017 · Photographs courtesy of Executive Garden Rooms.

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