Patisserie chain Maison Blanc’s future has become uncertain after the owner launched a review of its stores portfolio – potentially putting 300 jobs at risk, the Evening Standard has discovered.

A property agent has been hired by the company to analyse the future of its 13 stores, including Hampstead, Royal Park, Muswell Hill and Fulham, which could lead to closure or a sale.

The firm employed 275 people in the year to 31 December 2014 and, despite a £10.4m turnover, it recorded a loss of nearly £3m during the period.

A statement sent to British Baker from Maison Blanc’s PR company, Red Kite, said: “Maison Blanc have announced the appointment of Davis Coffer Lyons as specialist advisors as part of a strategic review into its current trading locations. This also includes the Maison Blanc production facility at Park Royal in London.”

However, as reported by The Evening Standard, proceedings are at a discussion stage and no decision has been made.

The patisserie firm, now owned by Kout Food Investments, was founded by Michelin-starred chef Raymond Blanc in 1981, but he is no longer part of the company.