Architect Jason Yung has walked down Gage Street every day since he first opened a studio in the area in 2000.

On March 25, when he passed Sun King Kee at 8.30am and realised the 70-year-old noodle shop would soon be closed to make way for redevelopment, he was moved to document its final week of operation.

"I hope to preserve a bit of the street's spirit and texture," he said.

His pictures show Tong Kim-chi, 68, and his wife, Ma Hau-kuen, at work in the shop and with customers.

The noodle shop started out as a traditional dai pai dong, or outdoor food stall, to serve Central's working-class population - decades before the high-end shops and bars moved in.

Since it moved indoors in 1967, the shop has changed little: the tiles on the walls and floor, the round, folding tables and even the metal chopstick cylinders are all decades old.