Garden Rooms with Metal Cladding

If you’re exploring ideas for your garden room, metal cladding is an increasingly popular choice — and for good reason. Whether you’re building a home office, an annex, or a relaxing garden retreat, metal cladding can give your garden room a sleek edge whilst offering long-term durability and minimal maintenance.

Once reserved for industrial buildings or agricultural settings, metal is now being reimagined in the world of garden architecture — offering a bold, contemporary alternative to traditional timber finishes. From sleek black steel to rustic Corten, metal cladding brings an edge of modern sophistication or heritage charm, depending on how it’s used. For homeowners seeking a unique style for their garden room, metal is fast becoming the material of choice.

Why Choose Metal Cladding for Your Garden Room?

A Strong Architectural Look
Metal cladding gives your garden room a clean, sharp appearance that stands out in all the right ways. Whichever finish you opt for, metal cladding creates a refined and professional finish. It pairs beautifully with large aluminum windows or anthracite framed doors like the Soho Origin range — making it ideal for studios with a show-stopping architectural look.

Low Maintenance and Long-Lasting
One of the biggest advantages of metal cladding is its low maintenance. Unlike timber, it doesn’t need regular painting, staining, or sealing. Most systems, especially powder-coated finishes, are designed to last for decades, making them a smart investment. As the material lasts so long, it can be painted in different colours to reinvent its style through time.

Designed for the British Weather
When installed correctly, metal cladding offers excellent protection from the elements — ideal for garden rooms in the UK. It forms a durable shell around the structure, shielding it from wind, rain, and temperature changes. At Miniature Manors, we use breathable membranes and concealed ventilation gaps to ensure your building stays dry and well-ventilated throughout the year.

A Great Fit for Any Garden Setting
One of the biggest strengths of metal cladding is its versatility — it can be styled to suit both modern and traditional garden landscapes. In contemporary spaces, it requires clean lines, paving, rendered walls, and structured planting. But it can also work just as well in more natural, rural, or heritage-style settings. A fabulous example is the ‘artist bothy’ featured in The Hospitalfield Arts Garden at the 2025 Chelsea Flowershow – a Corten room that sits amongst coastal planting.

Sits Beautifully with Other Materials
Metal cladding is incredibly adaptable and works effortlessly alongside a wide range of materials and finishes. Whether you’re combining it with natural claddings such as cedar, Thermowood or Shou Sugi Ban, metal adds contrast and character without overpowering the overall design. It also suits both flat roofs and pitched roofs, allowing for even more creative flexibility. This makes it easy to design a garden room that feels cohesive with your home, your garden, and your personal style.

See Metal Cladding in Action

Garden Studio with Corrugated Cladding
Sitting at 6.5 metres by 3.5 metres, this pitched roof garden room combines corrugated metal cladding with vertical Thermowood for a bold, eye-catching design. This studio is used by a social media influencer for filming content, and so natural light was a must. Working closely with out client, we chose french doors that sit centrally to the front elevation. A full length window sits to the side wall, making the most of the light, even on overcast days. This would have been a beautiful build with any style of cladding, but we think it is particularly elevated by the use of corrugated metal.

Corrugated Steel Garden Room with Apex Roof
Our client’s brief was clear – she wanted a barn-style building that would blend with her garden in the Sussex countryside. The interior was to have a ‘Japandi’ aesthetic – a nod to both Japanese and Scandinavian interior design ideas. Our team got to work and created this fantastic build. The structure consists of two rooms, a gym and home office with toilet, that are connected by a covered walkway. The corrugated metal cladding features on each exterior surface, creating the desired agricultural style building. And the interior? A bold impact room with birch plywood walls and engineered oak flooring.

Garden Room with Corrugated Metal Cladding
This is a fantastic example of corrugated metal cladding on a flat roofed building. We created this L-shaped garden room for an artist who required a creative space to work. The L-shape of the building showcases the bold, clean lines of the metal cladding. The structure sits in close proximity to the main house, transforming the feel of this family home.

Planning Permission for your Metal Clad Garden Room
Most garden rooms in the UK fall under ‘Permitted Development Rights’, which means that planning permission is not required, provided that your project meets the following conditions. The building:

• Is a single storey building with a maximum eaves height of 2.5m
• Possesses an overall height that doesn’t exceed 4m with a dual-pitched roof or 3m for any other roof type
• Is at least 2m from any boundary (if over 2.5m high)
• Doesn’t take up more than 50% of the land around the original house
• Is not in the front garden
• Is not installed in the garden of a listed building or a property in a designated area
• Is for incidental use (home office, gym, hobby room, etc.)

If your garden room meets the above criteria, it will be considered a permitted development and therefore, in most instances, you will not need to apply for planning permission.

Planning Permission is always required in the following instances:

• You live in a maisonette or flat (as in our case study below)
• Your property is a Grade I or II listed building
• You live in a conservation area, national park or Area of Outstanding Natural Beauty
• The design requires an external height exceeding 2.5 metres
• The garden room will be used commercially or as livable accommodation
• Your permitted development rights have been removed (through Article 4 directions)
• The garden room exceeds permitted development size limitations

So how does this relate to our garden rooms with metal cladding?! If you are looking to have a pitched roof, the building will be higher than 2.5 metres and will therefore need to sit at least 2 metres from your boundaries. This doesn’t tend to be an issue for larger gardens that are spoilt for space, but it does need to be considered if the area is tight. If you would like to avoid the planning process and will need to build within 2 metres of your boundaries, then opt for a flat roof structure with a smaller height.

As we’ve explored, the metal cladding often compliments characterful homes and gardens. These homes can often be listed, or the garden could sit within an Area of Outstanding Natural Beauty for example. If this is applicable to you, then we would always advise that you apply for permission from your local authority to create an outbuilding.

If you think you will need to seek planning permission, we’ve got you covered! With our planning, design and build services, we can take the stress out of this process and work through the application for you. You can learn more about this service with a member of our architectural design team.

Bespoke Garden Rooms with Metal Cladding
We are proud to offer beautifully bespoke garden rooms that stand out in the crowd. Our team is leading the way in metal garden room design, with a wealth of expertise and trade skills. If we can assist you with a garden room with metal cladding project, then please get in touch with our team to begin your design consultation. To begin the process, get in touch via our Project Planner or Contact Us Here.