There are also now rules about how many badge readers need to be between public and private areas. This turns into a mess in historic buildings that have technically-public stairwells littered throughout. (The Munich campus is particularly bad for this.)
In the NYC office, when I was there, we definitely had to badge in from a lot of stairwells. Also, the bathrooms that weren't completely contained in Google spaces had number pad locks on them.
(I was very annoyed when I worked on a floor that didn't have any dedicated Google-only bathrooms; I asked to have the locks removed just out of principle and was told that "people will wander in from the street and set up camp in there." You had to badge into the building though, so I wondered how true that actually was. I wish for once in my life someone would just tell me the truth instead of making something up to get me to go away. "We don't feel like paying someone to disconnect them, and other tenants in the building will complain if we do." That's totally fair!)
There are floors in One Market that are the same and equally nonsensical. The kicker is that Google stocks them with tampons and toothbrushes and all that, even though they're communal, which makes the locking even more silly.
There are also now rules about how many badge readers need to be between public and private areas. This turns into a mess in historic buildings that have technically-public stairwells littered throughout. (The Munich campus is particularly bad for this.)