The scheme won the supreme and project value over £250,000 awards. The landscapers and Lock worked together on the 20ha 18-month build, which had 23 revisions to the principal layout.
Managing director Mark Richardson said: "It was a challenging project and the weather was not with us. But it was great working with Jason, who gave us concept drawings to work with. There were certain elements that the client decided to change but the end result was a better effect than if it had been a simple design and build."
Major works included re-aligning and resurfacing the drive, renovating a brick bridge and protecting, restoring and transplanting horse chestnut trees suffering from leaf miner, replacing them with 7m-tall lime.
Contractors used 1,000 tonnes of topsoil reworking the levels and planted mature trees and hedges, viburnums, yew and hornbeam cubes as well as adding lighting, drainage, irrigation, gate pillars and a David Harber sculpture.