The 45-year year old blue Atlas cedar (Cedrus atlantica 'Glauca') has been planted at Beaulieu in Chelmsford and is one of the tallest ever planted by developers Countryside and L&Q.
Supplied by German tree nursery Von Ehren, it has a girth of 90cm and a canopy spread of 6m, and was selected to fit with the site, formerly part of historic estate parkland once owned by King Henry VIII, whose Beaulieu palace is now home to a school.
Also reflecting its heritage, a substantial piece of public art depicting a group of deer will be placed at the entrance.
Countryside managing director for strategic land Andrew Carrington said: "We always strive wherever possible to plant a combination of mature and semi-mature trees on our schemes from the outset. We have a long-term commitment to enhancing and conserving the valuable natural assets that make Beaulieu unique."
L&Q group director for development and sales Jerome Geoghegan added: "This is just the start of a major tree-planting and long term parkland management programme which will bring benefits to everyone in the area."