We had structural plywood sheathing installed in our garage, and the typical job is around $10k. The pre-existing sheathing was installed by [presumably] a fly-by-night contractor shortly after the 1989 earthquake. Fortunately I noticed that it wasn't installed correctly and used the wrong materials, and so it was basically useless. But given that the garage door, garage side entrance, and entryway make up greater than 80% of the front wall of our first story, that we have a big window and door on the back wall, there's not much room for sheathing (properly installed or not) to control movement along that axis. The house is now very unlikely to collapse into the street, but we're still lucky to be sandwiched between two other houses. Fortunately, our neighbor on the corner had his foundation rebuilt and a third structural wall installed. I should probably be remunerating him somehow.
In other circumstances I'd accuse that of deterring investment and being a contributor to the terrible housing situation in the Bay Area in general, but honestly, the zoning / planning-permit situation is the first limiting factor.
Indeed, let's all shed a tear for the SF landlord. I don't know how those poor folks can stay in business when property taxes are capped and median rent rises at ten times the rate of inflation!
About 72% of SF's units are under rent control. So not all landlords are making "fat profit margins".
Considering that any landlord buying a property will certainly be on the hook for the downside in a property if the housing market crashed, and you'll see that this isn't the greatest. (BUT THE HOUSING MARKET ONLY GOES UP AND WILL NEVER CRASH hahahahahaha yeah right).
Anyway. In general one needn't shed a tear for landlords and capitalists of their ilk for failure to make a profit: the money is its own reward. But we do need to respect the money (because that is the reward), the precise behaviors we are incentivizing, and the impact of political risk which we are inflict upon the people we might want to spend money investing in the region. For instance: making things like this risky means that risk-tolerant entities are likely to be involved (which means the rich guys, speculators and businesses that San Francisco loves, not individual homeowners). And the price of the landlord assuming any political risk will find itself baked into the price of any new rental property.
But as I was saying: it's kinda moot from a median-apartment-price perspective if nothing new gets built anyway for other reasons.