The stretch of 4th Street between Market Street and the Caltrain station at 4th and King Street may not be one of San Francisco’s best-known neighborhoods (at least not yet), but it’s an important area for urbanists to be thinking about. Why? Because roughly $1.5 billion will be invested in transit infrastructure here, in the form of the Central Subway. The SF Planning Department has launched a Central Corridor Study to plan the future of the area.

This year has been a wild one for redevelopment agencies in in California. First California voters passed Proposition 22, which prevented the state from raiding redevelopment agency funds. Then Governor Jerry Brown vowed to abolish redevelopment agencies and got fairly close to doing so. Now redevelopment agencies have once again headed to the chopping block, only this time it’s for real.

There's been a lot of hullabaloo about San Francisco's Mid-Market area lately, mostly focused on the new payroll tax exemption for businesses that locate in the neighborhood and the planned CityPlace Project, a major retail development, both approved by the city last September. But a gaggle of planners and economic development experts are already working hard to transform this area into an arts district anchored by a redesigned Market Street.