Millennial work preferences, open office floor plans, telecommuting, and coworking are changing where Americans work and what the workplace looks like. The workplace of the future is here today. The rapidly changing workplace is fueling the return to the city and creating new 'innovation centers' that are attracting high-tech firms and startups. Is there now a premium for mixed-use development? How are these forces affecting real estate investment and development? Which cities are winning? Richard Peiser is the first Michael D. Spear Professor of Real Estate Development in the Department of Urban Planning and Design at Harvard GSD.