The Duchy is working on the development with Morrish Builders, CG Fry and Son, and Wainhomes.
Waitrose's managing director Mark Price said millions will be invested into developing the Duchy brand.
The Duchy, one of the UK's largest private estates, provides an income to Prince Charles.
The Duchy of Cornwall should be radically overhauled, according to a Cornish Labour peer.
The proposed development at Barthomley, near Crewe, is on part of the Duchy of Lancaster estate.
In addition he gets an undisclosed income from his father's estate, the Duchy of Cornwall.
In November 2011 the Duchy of Cornwall was ordered to disclose environmental data from an oyster farm.
The decision by an information tribunal redefined the Duchy, a 700-year-old private institution, as a public body.
Popular minister Dr David Clark loses his job as Chancellor of the Duchy of Lancaster in the Cabinet reshuffle.
Former work and pensions spokesman Jenny Willott will take on the Duchy of Lancaster role vacated by Susan Kramer.
The Duchy said the proposal was "in the very early stages" and would be subject to a public consultation.
And Pierre Werner, a former prime minister of the Grand Duchy, wrote the first report proposing European monetary union.
The Duchy, which provides an income for the Prince of Wales, owns most of the 218 (538 acre) hectare site.
The development, built on Duchy of Cornwall land, is already home to about 2, 000 people and has provided about 1, 600 jobs.
BBC: Prince Charles visits Poundbury to mark 20th anniversary
Who cares that Norway was once part of Sweden, or that Finland used to be a Grand Duchy of tsarist Russia?
It was put up for sale by a tenant of the Duchy of Cornwall - about 200 had received the memento of the wedding.
BBC: NEWS | UK | Wales | North East Wales | Royal wedding cake sold on web
Another figure often mentioned is Jean-Claude Juncker, Luxembourg's prime minister, but he repeatedly says he plans to continue running the Grand Duchy.
The 59-year-old Duke of Normandy was taken to his Duchy's capital Rouen after the accident, but was unable to recover from his injuries.
The power plant at Rainbarrow Farm, on land owned by the Duchy of Cornwall, is a joint venture between local farmers and the Duchy.
The Duchy has also recently applied for outline permission for employment space, enough it says to support around 600 jobs, opposite Hendra Holiday Park.
David Clark, the chancellor of the Duchy of Lancaster and the bill's sponsoring minister, insists that a draft bill will be published in September.
According to its website, the Duchy owns 2% of Cornwall, as well as the freehold on most of the land on the Isles of Scilly.
More than 800 people have signed a petition against the plans to build homes on greenbelt land on part of the Duchy of Lancaster estate.
BBC: Cheshire East council leader snubs Crewe housing meeting
Plans for 800 homes, shops, a supermarket and a primary school on the edge of a Cornish town have been submitted by the Duchy of Cornwall.
It aims to expand the range from 200 products to around 500 and will pay a royalty to Duchy Originals on all wholesale and retail sales.
The Duchy said the development would also bring improved links with the Aerohub Enterprise Zone at Newquay Airport, where the government hopes thousands of jobs will be created.
In his youth he was known as "William the bastard", but was recognised as the family's heir on his father's death in 1035 and so inherited the Duchy of Normandy.
Merchant banker Augustus Smith bought the lease from the Duchy of Cornwall back in the 1830s, and his descendants, the Dorrien-Smiths, now run the Tresco Estate as a family business.
The excavations are a requirement of the planning conditions placed on the TEDC development, which is a partnership between the Duchy of Cornwall, Cornwall Council, The Taste of Cornwall and Waitrose.
Managers who no longer have anyone to manage are fobbed off with inflated titles, much as superannuated politicians are made Chancellor of the Duchy of Lancaster or Lord President of the Council.
ECONOMIST: Inflation in job titles is approaching Weimar levels
应用推荐