Duncan Cargill

Duncan graduated from LCGD in 2018 with distinction. In 2019 he was awarded the Society of Garden Designers Award for his final project at the college and in the same year, the RHS Chelsea Flower Show garden that he designed with fellow graduate Colm Joseph was awarded a Silver-Gilt medal

He is now one half of Cargill Sykes, a garden design company based in London and the Cotswolds. They are working on projects in London, Sussex, Norfolk, Warwickshire and in the South of France. Their style stems from an appreciation of traditional garden design principles applied to contemporary needs and tastes with a clear understanding of client requirements

For more information about the work we are undertaking and some of our previous projects please visit our website or contact us

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Cargill Sykes Landscape and Garden Design


I graduated from The London College of Garden Design in 2018

I studied fine art at Chelsea College of Art and art history at Birkbeck.

Up until 2016 I worked as a Creative director in London and New York creating experiences for some of the worlds biggest brands. I have found a natural extension in designing meaningful experiences in landscapes and gardens


Norfolk Country House

The transformation of a somewhat redundant c18th garden and park to suit the needs of a C21st family

Big brave decisions were made in the masterplan to bring the purpose for the garden and land surrounding the house up to date. New driveway and parking was created, avenues opened up in existing woodland to provide long views, new avenues of trees planted to lead the eye across the park, an ornamental orchard was created for the walled garden and a brand new productive ‘loke’ or hedged lane gave new purpose to a walk to the church

Masterplan for Carcassonne

A Masterplan for a 14-acre garden close to Carcassonne. The garden has come together over 20 years but had lost coherence. We are working on a long-term project to enhance the best parts of the existing garden and create new areas. Work begins in Spring 2019

Competition proposal for new garden at The Savoy Hotel London

The Mikado Garden – a tribute to the comic opera whose box office success built the hotel. Japanese inspired from planting to floating lanterns.


Alongside fellow graduate Colm Jospeh we designed a garden for Perennial, the horticultural charity for the 2019 RHS Chelsea Flower Show. Inspired by Sir Roy Strong’s The Laskett is a revisioning how classic garden design principles and traditional elements can be set alongside adventurous planting. Roses, grasses, and perennials push their way through more formal hedging either side of a striking contemporary colonnade. The garden was awarded a Silver-Gilt medal