Singh Cuts at 15 CPW, Hess Buys at 101 Warren

• Ravi Singh, who retired from Goldman Sachs late last year, appears to be having a tough time unloading the four-bedroom apartment at 15 CPW he picked up last March for $15.87 million. Since listing the home for $32 million in September, Singh has cut the price three times, and it now has an asking price of $22.5 million. [Cityfile, BHS]
• Hess Corp. chairman and CEO John Hess has paid $5.5 million for a condo at Tribeca's 101 Warren. [Cityfile]
• Ira Lipman, the head of the security firm Guardsmark, has paid $2 million for an apartment at the Sherry Netherland. [Cityfile]
• Folk artist Thomas Langan and his wife Penelope have put their waterfront home in Roslyn Harbor on the market for $2.9 million. [Newsday, PDE]
Kimora Lee Simmons has lowered the price of the manse in Beverly Hillst hat she first listed for $7.75 million in June. It's now yours for $6.9 million. [BTL]