The Mission Viejo Library opened to the public in October 1997. In April 2002, the library expansion added an additional 14,441 square feet, bringing the facility to 41,500 square feet in size. The Mission Viejo Library is located at the intersection of La Paz and Marguerite Parkway across the courtyard from City Hall. LIBRARY HOURS - Monday through Thursday 10:00am to 9:00pm, Friday 1:00pm to 5:00pm, Saturday 10:00am to 5:00pm, Sunday 12:00pm to 5:00pm