A spellbinding Cotswold garden that has hardly changed for centuries

In a hidden valley in the Cotswolds, Owlpen has quietly weathered the centuries, thanks to committed custodians, including its present owners, who have worked hard to ensure that its gardens remain as spellbinding as ever

Without the love and commitment of all these owners and carers of Owlpen, the garden might never have survived the passing of so many years and changes. It remains one of the few surviving examples of an early formal domestic setting in the UK, on the steepest site imaginable. Wedged in a tucked-away cleft of the Cotswolds, Owlpen is protected by woods rising to the north behind the house, which perches above a stream running along the foot of another hill to the south. Five hanging terraces of horizontal yew underline the gabled building; and the garden is populated with bold topiary shapes. The yew parlour still stands, with its walls higher than any room in the house; at various times, the area has been known as the green drawing room, the ballroom, the dancing floor and the wilderness. Some of the topiary has had to be replaced and, though their shapes may have altered over the years, many may have been rooted in the same spot when Shakespeare was writing his plays. Sadly, the giant yews in the famous neo-romantic Frederick L Griggs engraving of Owlpen, which could be seen growing behind the yew parlour, were felled in the 1950s as they made the house too dark.

Nicholas is a historian and the changes he has made outside have been informed by a respect for the past and a love of architecture. Norman Jewson was a friend, and Rosemary Verey and Simon Verity offered guidance when Nicholas created a simple box-edged parterre on the first level. (There is no sign of box disease, possibly due to the protected setting.) Nicholas also extended the garden beyond the stream. Semicircular 18th-century steps descend to meet a 20th-century flight of Italianate steps rising to a flattened area - allowing you to stand on the slope to the south and admire the house, sheltered by a church, a wood and battlements of yew.

Nicholas used to cut the massive hedges himself but now oversees this. 'They were always battered,' he says, a little ruefully, and it is true that looking more closely, the top of the hedge is now wider than the bottom. This matters: the top should not shade out the roots so rain can reach the base. But it is a small quibble in a perfect place, which is not so much a garden - there are few flowers at Owlpen - as an architectural extension of the house. But Owlpen is, above all, a living piece of history and a testament to the devoted love of those who have saved the place from dereliction.

Owlpen Manor and its gardens are open by appointment for pre-booked groups and via the Historic Houses Invitation to Viero scheme in the summer months: owlpen.com | historichouses.org