From another article: > For at least 17 years, the city's Office of the Treasurer and Tax Collector mailed tax forms to the address of a now deceased bookkeeper, who worked for the homeowners' association before retiring in the 1980s. Over the years, the $14 annual property tax went unpaid by the people who live on Presidio Terrace. (San Francisco taxes the private street as a separate parcel from the homes on it.) The bill racked up hundreds more dollars in penalties and interest.

Presidio Terrace, along with 1,400 other parcels (mostly vacant lots), hit the auction block in 2015. The tax collector's office sent advanced notice to the same outdated address, which was later returned to sender and marked as undeliverable, according to José Cisneros, treasurer of the city and county of San Francisco. Still, the sale went on.

So, this is mostly sensationalist coverage.