Greentop Landscapes
Landscaping & Garden Design in Cardiff
From garden makeovers to full landscape transformations, Greentop bring fresh ideas, expert craftsmanship and a personal touch to your outdoor space
From garden makeovers to full landscape transformations, Greentop bring fresh ideas, expert craftsmanship and a personal touch to your outdoor space
With over 40 years of hands-on experience, Greentop’s founder, John Roberts, is a highly recommended garden designer with a background in civil engineering.
Since qualifying from Pershore College in 2004, he has been designing and building gardens across Cardiff, South Wales, and beyond, with a focus on creating beautiful, lasting spaces.
John incorporates 3D CAD design to help clients visualise their projects with accuracy and clarity, using video design to further enhance client understanding by providing clear, engaging presentations of their garden plans.
Alongside his landscaping work, he’s become a trusted voice in the industry, sharing practical advice through YouTube long before it became the go-to platform it is today. His mission has always been simple: to raise standards, support others in the trade, and help anyone – from businesses to first-time DIYers – make the most of their outdoor spaces.
Thinking about transforming your garden with a landscaping project? Get in touch to see how Greentop Landscapes can bring your vision to life.
Contact John
How We Work
At Greentop Landscapes, we believe that great gardens start with good conversations.
With decades of experience across Cardiff and South Wales, we know that clear communication and thoughtful planning are just as important as the project itself.We take the time to understand what you need, then bring your ideas to life with detailed drawings and a design that fits both your space and your lifestyle.
From first sketch to final planting, you'll always know what's happening and why. It’s your garden. We’re here to help make it everything you want it to be.
I would highly recommend John and his team, my garden has been transformed and I am looking forward to enjoying it.Thank you John!
Charlotte Reed
Honestly can't say enough positives about Johnny. Thoroughly knowledgeable and willing to share this to help others.
Stuart Lawrie
Garden Design Service
Our Garden Design service is where creativity meets precision. With over 40 years of hands-on experience, John brings a practical, forward-thinking approach to every project—whether it’s a compact urban courtyard or a sweeping country garden.
We create detailed 3D visuals, plans and videos that allow you to see your garden before a single spade hits the ground. It’s a chance to explore ideas, tweak layouts and feel confident in the direction we’re taking—together.
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Designs can be created as standalone concepts or as the first step towards a full garden transformation. If you choose to move forward, we can manage the build too, ensuring that every element matches the original design. It’s a smooth, well-managed process with fewer surprises along the way.
Get in touch for a relaxed, no-pressure chat about your ideas—we’d love to hear them.
We bring clarity to what can often feel like a daunting process. No jargon and no guesswork, just a clear path from vision to reality. With years of experience across Cardiff and South Wales, we know how to deliver results that speak for themselves.
A premium landscape isn’t just about how it looks, it’s how it works for you. We design gardens that are both beautiful and practical, with no corners cut.Expect smart solutions, meticulous planning, and a garden that feels just right, every time you step outside.
Whether you want a peaceful retreat or a space for entertaining, we’ll help you make the most of every inch of your outdoor space.
Transform Your Garden
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