I successfully nominated the Colombo Market Arch to become San Francisco Landmark, No 311. The arch is the sole surviving remnant of the Colombo Market building constructed in 1894 and designed by architect Clinton Day.

I concluded that this property was historic as a rare example of the Bay Area’s agricultural past. The house was owned by the Delucchi...

The Southern Pacific Railroad roundhouse was built in Brisbane in 1910 and is the last surviving mainline roundhouse in California....