February 23, 2013, 7am PST
Buoyed by a recovering real estate market, and a race to build the tallest and most exclusive residential towers in the city, Manhattan is experiencing a surge in air-rights deals. Robin Finn explores the nuances of this complex market.
April 28, 2011, 6am PDT
The TDR, or transfer of development rights, could be a way for Canadian cities to reduce the expansion of its sprawling cities, according to this piece.