If you were anywhere near Mt. Davidson last night, you saw it — a dramatic curtain of rain hammering the East Bay while the rest of the city watched from across the water. It was gorgeous. It was also a reminder that Bay Area housing stock has a dirty little secret: half of it can't handle actual weather.

Every time we get one of these downpours, the same cycle plays out. Rain comes. Walls leak. Mold appears. Tenants panic. Landlords shrug. Rinse and repeat — emphasis on the rinse.

The conversations popping up across the Bay right now are telling. Renters are dealing with mold creeping through walls, ruined belongings, and kids getting sick. One local resident summed up the frustration bluntly: "This is not normal — something is leaking in that wall." Another Bay Area renter described running dehumidifiers nonstop, watching PG&E bills skyrocket, and ultimately having to move after their young child developed persistent respiratory issues from mold exposure.

Here's what grinds our gears: California has some of the most aggressive tenant protection laws in the country, yet basic habitability — like, say, walls that don't grow fungus — remains a constant battle for renters. The state is happy to pile on rent control regulations and eviction moratoriums, but enforcement of actual health and safety standards? That's apparently your problem.

Mold remediation isn't cheap, and we're not unsympathetic to smaller landlords dealing with century-old buildings and brutal insurance costs. But when a kid is sleeping in a room with visible mold growth because a property owner won't open up a wall, we've crossed from inconvenience into negligence.

The real issue isn't the rain — the Bay Area has always gotten rain. The issue is decades of deferred maintenance enabled by a housing market so tight that landlords face zero consequences for letting properties deteriorate. When vacancy rates hover near zero, there's no market incentive to keep units in good shape. Tenants aren't going anywhere, and everyone knows it.

If you're dealing with mold right now: document everything, notify your landlord in writing, and know that California Civil Code §1941-1942.5 is on your side. Don't wait. And for the love of your lungs, get a humidity monitor — you want readings under 60%.

The view from Mt. Davidson was stunning last night. Your landlord's response to what it left behind probably won't be.