If you'd like to learn about a particular property, there are a few ways you can do this.

• http://propertymap.sfplanning.org/ - allows you to enter an address and get lots of planning-related info about the property.
• CurbedSF has an "Ask Curbed" feature where you can ask questions about construction at a particular site and they'll investigate and make a short blog post about it.

Please add here how to find out who owns a particular building!