On Monday, construction workers hoisted an Apple logo over a storefront two doors away from the Pasadena (S. Calif.) retail store, where a temporary store will serve customers during a year-long project to expand the 2003-vintage store. The new sign was first reported by the local BrighamYen.com real estate blog. The former Z Gallerie store at 42 West Colorado Blvd. is half the size of the current space at #54. It has 4,500 square-feet of space on the ground floor and 1,750 square-feet on a mezzanine. Both buildings are part of the city’s historic district and date from the late 1920s Art Deco era. According to building permits issued by the city, the original outside walls will be retained, while a partial second level is added at the rear of the property. The space will be 51 feet x 75 feet, adding 3,825 square-feet to the store, for a total of about 12,500 square-feet. The current store opened in January 2003 as store #52, featuring wood floors, a front POS counter and rear theater covering 8,669 square-feet. The storefront was reconfigured in 2006, widening the entrance area, and removing the original black metal panels and back-lit Apple logos. Based on the extent of construction, the re-constructed store could open within nine to 12 months.