article_snippet.sent: Scroll down for video .
article_snippet.sent: New windows have been installed in every room, the bathrooms remolded and state-of-the-art equipment like a sub-zero refrigerator and viking range installed in the kitchen.
article_snippet.sent: The couple, pictured left in 1997, purchased the Upper West Side home in 1990.
article_snippet.sent: Pictured on the right leaving the residence in 2005 .
article_snippet.sent: The combined monthly maintenance fees for both residences is more than $20,000.