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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
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Annexe project · Ark Design Build

1-bed annexe for an awkward-shaped garden

A 30sqm annexe in Kent with its rear wall angled to the garden boundary, the kitchen tucked along it, and sliding doors from both the main room and the bedroom.


Published 21 October 2023 · Updated 23 September 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

30sqm one bedroom annexe by Ark Design Build
Ark Design Build  30sqm one-bedroom annexe, Kent

While many garden annexe providers adhere to traditional rectangular designs, occasionally an irregularly shaped annexe with angled walls is necessary to optimally utilise the available space. If you’re in Kent or nearby areas and are considering an annexe for an unusually shaped garden, Ark Design Build are the people to talk to.

Specialising in custom design projects, Ark Design Build starts every task with a clean slate, designing buildings specifically suited to individual clients and their gardens. They offer a comprehensive turnkey service, managing the entire project from the initial design concept to the final connections to the utilities.

With their garden living annexe projects, this inclusive service even encompasses managing the planning approval process on behalf of their clients.

At a glance

  • Size: 30sqm — a main room with kitchen and storage, a generous bedroom and an en-suite shower room.
  • The trick: the rear wall is angled to follow the garden’s boundary lines, with the kitchen and storage set against it; traditional timber framing makes shapes like this straightforward.
  • Inside: plastered and decorated walls and ceilings with wooden floors; large sliding doors from both the main room and the bedroom, with high narrow windows for ventilation.
  • Shower room: specified with the client — Ark’s past projects show distinctive tiles and fixtures chosen to suit.
  • Company: Ark Design Build, Kent — a turnkey service with planning, groundworks and plumbing inside the quoted price, handed over fully commissioned.

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 →
The shape

Maximising space with an angled wall

Ark Design Build recently completed this 30sqm bespoke living annexe. The layout has been thoughtfully designed to have a spacious main room, incorporating a kitchen and a storage area. A generous bedroom with an ensuite shower room leads off the main living space.

The rear wall of the main living area is angled to match the garden’s boundary lines, ensuring optimal space usage. Ark Design Build’s use of traditional timber framing allows them to easily integrate such unique features.

Inside the Ark Design Build annexe with the kitchen fitted on the angled rear wall
Along the angled wall  the kitchen and storage

The kitchen and storage space are strategically located against this angled wall. As the accompanying photo illustrates, placing the kitchen here maximises an otherwise challenging space. This thoughtful design choice showcases Ark Design Build’s expertise.

As we can see, the rooms have a light modern interior thanks to the combination of plastered and decorated walls and ceiling and wooden flooring. Both the main room and the bedroom have external access to the garden via large sliding door sets. The sliding doors have been paired with narrow rectangular windows positioned high on the side and rear walls. These windows can be easily opened to ventilate the room.

The main living space has a light, modern feel
The main room  sliding doors, high windows
Shower room

Annexe featuring ensuite shower room

Off the bedroom lies the ensuite shower room. Ark Design Build collaborates with clients to create a shower space that reflects their preferences and style. A glance through Ark Design Build’s past projects reveals their willingness to incorporate distinctive tiles and fixtures to achieve the client’s vision.

The Ark Design Build annexe features an ensuite shower room
The en-suite

Unlike many annexe providers who expect clients to coordinate groundworks and plumbing with another firm, Ark Design Build provides these services within their quoted price. Having a single company oversee every phase of construction offers numerous advantages, letting you relax as your building comes to life.

By the time the Ark Design Build team concludes their work, your annexe is fully commissioned and ready for use.

Planning something similar?

Learn more about Ark Design Build

To learn more about creating an unusually shaped garden annexe, chat with Ark Design Build on 07896 196 718 or email contact@arkdesignbuild.co.uk. Head over to www.arkdesignbuild.co.uk to learn more about their bespoke design service.

Visit Ark Design Build More Ark Design Build projects
More projects like this One-bedroom annexes 25–35 sqm annexes
Read the guides Garden annexes: the complete guide What an annexe costs The Caravan Act route Granny pods

Published 21 October 2023 · Photographs courtesy of Ark Design Build.

Visit the Garden Spaces website
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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 →
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A self-contained annexe
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Kitchen, bathroom & bedroom
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Fully fitted & insulated,
built in weeks
Based in Brighton & Hove,
building across England
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