Construction will begin on a Tesco store on the estate's Market Street early next year.
A spokesperson for the Duchy of Cornwall said Market Street will also contain independent shops, cafes and restaurants.
It's expected around 100 jobs will be created by the new Tesco store - and will have a footprint of 2,283sq m.
Sam Kirkness, Nansledan Development Manager at the Duchy of Cornwall, said: “We’re delighted to have secured Tesco as part of Market Street’s exciting and diverse retail offer and are hugely encouraged by the number of direct approaches so far from local established businesses, independents and start-ups, all interested in becoming part of a modern-day high street and lifestyle destination for North Cornwall.”
Newquay family launches £50,000 appeal to adapt home for four-year-old Jude
Free community fete to be held in Treloggan
St Mawgan Steam and Vintage Rally promises three days of family entertainment
Newquay world record surfing attempt postponed
Campaigners fear Glendorgal could change before rights inquiry concludes
‘Wind your necks in’ councillors told over Reform UK resignations
Charity relay to celebrate Newquay coach’s 20 years of helping runners
Price hat-trick leads Newquay sporting weekend
Record 150 teams compete in Crantock Bale Push
Controversial seafront development is now ‘undeliverable’
Disposable barbecues could be banned on beaches
Newquay theatre production to honour late actress Penelope Keith
Cornwall needs a ‘fairer, honest’ housing waiting list
New plans could pave way for demolition of derelict Narrowcliff buildings
Help find a cat a home
Free hedgehog talks offered to youth groups in Newquay area
Double title for Reggie Roynon as national surfing champions crowned at Watergate Bay
Search begins for Newquay's new town crier