• Bachelors in Environmental Studies (BES) University of Manitoba


• Masters of Landscape Architecture (MLA), Harvard University


• PhD in Historical Geography, University College London

• Kensington Palace (for Historic Royal Palaces)
  
• Hampton Court Palace (for Historic Royal Palaces)
  
• Boboli Gardens, Florence, Italy


• Bulstrode Park, Buckinghamshire


• The Crown Estate (Central London Estate).


• Lyme Park, Cheshire (for the National Trust)


• Trentham Gardens, Staffordshire


• Weston Park, Staffordshire


• Co-ordinated the revision of The Register of Parks and Gardens of Special Historic Interest (in London) for English Heritage and the London Historic Parks and Gardens Trust
  
  

• Chapel Court, Hampton Court Palace
  
• Restaurant Kiosk, Waddesdon Manor, Buckinghamshire
  
• Performing Arts Centre, Bridgwater College, Somerset
  
• Eastcourt House, Wiltshire
  
• Masseria del Fano, Puglia, Italy
  
• Glebe House, Gullane, Scotland
  
• Old Manor House, Stoke Poges


• King's New Kitchen Garden, Hampton Court Palace (proposals)
  
• New Bower Walk, the Sunken Garden, Kensington Palace
  
• Orangery Lawn, Kensington Palace Gardens (proposals)
  
• Selfridge's Hotel, London


• The Old Rectory, Wimbledon


• The Old Forge, Fawley, Oxfordshire


• Clore Learning Centre, Hampton Court Palace


• Bauva, Barbados


• Boudouris Mansion, Hydra, Greece


• Chateau de Regniere Ecluse, France


• Charles Saatchi Garden, London


• Fustic House, Barbados


• Hampton Court Palace, Surrey


• Hatchet Wood Farm, Buckinghamshire


• Mouttet House, Fort George, Port of Spain, Trinidad


• Southwark Cathedral, London
  
• Stackallan House, County Meath, Ireland
  
• Villa Terranova, Umbria, Italy
  
• Waddesdon Manor, Buckinghamshire

Advisory Roles

• Gardens Adviser to Hampton Court and Kensington Palaces


• Founder member and Vice-President, London Historic Parks and Gardens Trust


• Garden Adviser, Spencer House, London

Lectures widely on landscape history, and contributes regularly to a range of publications including Country Life, The Times, Apollo, Art Review, Garden History, The Georgian Group Journal, The Sunday Telegraph, The Journal of Garden History, The Art Newspaper, The Burlington Magazine and World of Interiors. He is founder and editor of The London Gardener, journal of the London Historic Parks and Gardens Trust.

His book The London Town Garden 1700-1840 was published by Yale University Press in March 2001, and The Gardens and Parks at Hampton Court Palace was published by Frances Lincoln (London) in June 2005.