 Lander's work in 2003–2005 on the Greenpoint-Williamsburg rezoning led to the first New York City inclusionary housing program to create affordable housing in new development outside Manhattan.Lander served on a mayoral taskforce that recommended reforms to the 421-a tax exemption for luxury housing and required that new development in certain areas of the city set aside affordable housing units.He co-led the completion of the One City One Future platform, a progressive vision for economic development in New York City.