The Plaza at Preston Center added some more top-notch tenants to its list for a 5-story mixed-use building underway when they recently signed Cambridge Holdings, Inc. and Morgan Stanley.

Cambridge leased about 19,000 square feet of office space comprising the entire top floor of the building and half of the third floor upon its completion Spring 2013. The building will now be known as The Cambridge Building after the national developer, owner and manager of healthcare facilities.

“The vibrancy of the neighborhood and the walkable surroundings of the plaza are complementary with our business activities,” Cambridge CEO Jean-Claude Saada says via press release.

Morgan Stanley leased 14,317 square feet of office space of the entire fourth floor of the building, and are scheduled to move in late summer 2013.

Retail tenants like True Food Kitchen and Matthew Trent will occupy the ground floor and the second floor will be home to the University Park public library.