Earlier quoted context omitted.
Most offices have physical layouts that make conversion to residential difficult to impossible. Big things like lots of interior square footage without windows and plumbing only to a few central locations. And while some or even most of this is fixable, major renovations are a ton of cost and effort to convert them to something that will still be expensive and weird, if even possible to meet the legal requirements of…
Maybe SF should relax the legal requirements of residential space, then? If they choose not to build sufficient housing... they can at least choose to use what they have. A windowless room with a community bathroom doesn't sound appealing, but at a certain price point it's better than nothing.
The building codes have evolved over time to protect life/safety of the occupants, so not something you would want to have the City bypass.
[1] https://en.wikipedia.org/wiki/International_Building_Code [2] https://sfdbi.org/codes