Leo pays $10m for a green condo, Derek Lam sells in SoHo, Heather Matarazzo parts with a cute East Side studio and doc director Ken Burns buys at Meier’s modern BK building.

Avatar actor Sam Worthington was recently spotted checking out a $15.5k-a-month rental at the Gunther Building at 473 Broome Street in SoHo. The actor and his model girlfriend Lara Bingle viewed a 2,400 square-foot two-bedroom unit with classic downtown loft details like pressed tin ceilings over 12 feet high, Corinthian columns and 7-foot-high windows in the 1872 landmarked condo conversion. The building also offers a landscaped roof deck and a garden (NYPost).

 Actress Heather Matarazzo (The Princess Diaries, Welcome to the Dollhouse) recently listed her East Side co-op at 342 East 53rd Street for $315,000. The diminutive studio has been updated nicely with granite and stainless steel, and there’s exposed brick, an open layout and the East River a block away (NYPost).

Downtown style darling and designer Derek Lam–with partner and company CEO Jan-Hendrik Schlottman–just sold his loft at 92 Greene Street. The 2, 200 square-foot classic SoHo loft condo in the building where Rihanna once resided changed hands for $5.25 million (NYPost).

The deal’s done on Leo DiCaprio’s new two-bedroom apartment in the Greenwich Village “wellness” building at 66 East 11th Street known as the Delos building. The Wolf of Wall Street-er paid a very green $10 million for the condo that offers eco-perks like vitamin C-infused showers, purified air and water, air-circulated aromatherapy and posture-supportive heat reflexology flooring. The actor also gets temporary use of a parking space currently reserved (it can be purchased for $1 million) for another–currently unsold–unit (PageSix).

 Sportscaster Marv Albert is selling the One Lincoln Square duplex penthouse at 150 Columbus Avenue that he has owned since 1996, when he purchased it for $2.393 million. The 3,553 square-foot co-op has a 1,500 square-foot terrace that rocks an irrigation system and automatic lighting and audio, which may or may not justify the apartment’s $16.5 million listing price (CurbedNY).

Documentary filmmaker Ken Burns just bought a light-filled sixth-floor unit at Pritzker-prize-winning starchitect Richard Meier’s On Prospect Park at 1 Grand Army Plaza in Prospect Heights, Brooklyn. The doc director picked up the 2,107 square-foot three-bedroom glass-window-walled pad for at the modernist address for $2.75 million for his daughter and her fiance (NYO).