Probably a garage?

via StreetComplete 25.1

Unable to answer "How many levels does this building have?" for osm.org/way/256401002 via StreetComplete 24.1:

There is no building here.

Unable to answer "How many levels does this building have?" for osm.org/way/256401017 via StreetComplete 24.1:

There is no building here.

This is a wrong location of this street.

This street is actually Colonial Oaks Drive. The street below that is labeled as such is actually the driveway for the first two houses above. It only extends as far as the second structure. The three houses at the end of Colonial Oaks Drive are served by a spur in the road that goes South between the 3rd and 4th houses on the left. This is a persistent error from the original map.

fire road continues to the south here

via StreetComplete 39.1

This is not a paved / completed road. It's a fire escape route, but not meant for through traffic. This is the farthest west you can go on the eastern half.

This is not a paved / completed road. It's a fire escape route, but not meant for through traffic. This is the farthest east you can go on the western half.

onosm.org submitted note from a business:
name: Harry Halvorsen's 9pm-4am Offices
phone: 6505186664
website:
twitter: undefined
hours: 9pm-4am Friday Saturday Sunday
category: ,Offices
address: 485 harrington court

onosm.org submitted note from a business:
name: Harry Halvorsen's All Night Headquarters
phone: (650) 518-6664
website:
twitter: undefined
hours: 9pm-4am
category: ,Fraternity Houses
address: 485 harrington court