CHICAGO-A fund operated by Chicago-based Waterton Associates LLC has acquired Seneca, an apartment hotel consisting of 264 units at 200 E. Chestnut St. in Streeterville, for $35.6 million.

NEW YORK CITY-SL Green Realty Corp., a real estate investment trust, has hired Adam Spies and Douglas Harmon of Eastdil Secured to sell a stake at 521 Fifth Ave.

LONDON-Boston Properties Inc. is in negotiations to purchase Drapers Gardens, a 292,500-square-foot trophy office building in the financial district of London, for GBP 285 million.

BROOKFIELD, WI-Decade Properties Inc. has bought two office buildings totaling 235,000 square feet in Brookfield for $6.05 million.

BOCA RATON, FL-CB Camino Real, LLC has sold Fountains at Camino, a mixed-use office park in Boca Raton, for $16 million.

CLEVELAND-The Cleveland Plain Dealer reported that a nonprofit organization is planning to invest $100 million to redevelop a 2.2-acre parking lot in Cleveland's University District into apartments, an office building and a parking garage.

NEW YORK CITY-The Foundation for Jewish Camp is relocating from 15 W. 36th St. to 253 W. 35th St. in Manhattan's garment district.

NEWCASTLE, UK-Highbridge Business Park Ltd. has selected Bowmer & Kirkland, a construction group, to build the final two speculative data center buildings at Cobalt Data Centre Campus.