Homes on the hillsides, storefronts on the boulevards, and two very different kinds of exterior.
Two housing stocks share this city. The Spanish Colonial Revival homes from the 1920s and 1930s bring stucco, clay tile and ironwork. The postwar ranch homes that filled in around them bring long low siding and a driveway that runs the width of the lot. They do not clean the same way, and treating them as if they did is how stucco ends up scarred.
Stucco holds dirt in its texture and it also chips, so it gets a wash that lifts the grime without cutting into the finish. Clay tile has its own rule: walking a tile roof breaks tiles, so roof work here is done from the edge and with soft washing wherever the pitch allows.
The ranch houses are more forgiving on the walls and less forgiving on the concrete. A driveway that wide shows every oil drip and every sprinkler stain from the street.
Commercial frontage on the boulevards is its own case. Glass, painted sills and a public sidewalk in the same ten feet means the work happens in a set order and outside business hours, so nobody walks through it.