Conceived to honour the men and women of the Metropolitan Police who have lost their lives on active service, the Memorial Gardens at the Peel Centre offer serenity in a built-up area.
Churchman Landscape Architects' understated design incorporates three gently ascending terraces and 200 donated roses and forms a fitting memorial.
The judges said:
"Landscape design can sometimes be overlooked in public projects but in this case landscape design is the project. The Memorial Gardens in Hendon give a sense of calm, even though they are surrounded by substantial buildings. The combination of planting and hard landscaping is exemplary."