Hazlemere Foodhall, the former Chalfont Foodhalls store sold to Midcounties Co-op last year, has been relaunched following an £850,000 refurbishment.
The store is trading under The Co-operative fascia with new fittings including new refrigeration units, state-of-the-art lighting, a bigger deli and seven new checkouts.
A wider offer of locally sourced food and drink has been introduced and newspapers and magazines will also be sold for the first time, with a home delivery option.
"As a co-op, we pride ourselves on being a popular family store building close links with the community," said store manager Stuart Howe. "This includes listening to local people and responding to what they want."
Midcounties snapped up the former Top 50 retailer in October last year from owner Eamon Maher, who decided to sell the store because of rising taxes. In 2006 pre-tax profit was £780,000 on turnover of £9.3m. Last month, Midcounties said it was keen to make more acquisitions.