Real estate is a major force in the city's economy, as the total value of all New York City property was assessed at US$914.8 billion for the 2015 fiscal year. The Time Warner Center is the property with the highest-listed market value in the city, at US$1.1 billion in 2006. New York City is home to some of the nation's—and the world's—most valuable real estate. 450 Park Avenue was sold on July 2, 2007 for US$510 million, about $1,589 per square foot ($17,104/m²), breaking the barely month-old record for an American office building of $1,476 per square foot ($15,887/m²) set in the June 2007 sale of 660 Madison Avenue. According to Forbes, in 2014, Manhattan was home to six of the top ten zip codes in the United States by median housing price.
What was the 2015 assessed value of all the property in New York? How much was Time Warner Center worth in 2006? What was the price per square foot of 450 Park Avenue when it sold in July 2007? What was the price per square meter of 660 Madison Avenue in June 2007? Of the top 10 zip codes with the most expensive housing prices in the United States, how many are in Manhattan? Which building has the highest market value in NYC? The previous record beaten by Park Avenue was for what real estate?