The City Council Committee on Housing and Real Estate met for more than three hours yesterday and approved Mayor Emanuel’s $12.4 million dollar parking lot sale, a land sale on the South Side that will pave the way for a new waste processing center that will produce renewable energy, and appointments to boards that oversee affordable housing. All lease agreements and land sales on the agenda were approved by voice vote. Ald. Joe Moreno’s (1) ordinance establishing height limits on exterior staircases to residential homes was re-referred to the Zoning Committee.