CBRE agent Gemma Isgro, who shared the listing of the blocks with director Nicholas Heaton, said it was a huge result. How long can low interest rates last? 2:01 How long can low interest rates last? “We had some offshore interest, but mainly they were local high-net-worth people looking for passive investments,” Isgro said. “They want a secure passive investment to pass down through their families and trusts for generations to come.”She confirmed the buyer was a local investor who will maintain the property exactly as it is.