Last week I contacted Richard from the City of Hermosa Beach regarding the Mills Act.
The Mills Act (related info here, here, and here) is a piece of legislature designed to promote the preservation of historical buildings/architecture including homes. Homeowners enter into a 10 year contract that dictates the house must not have anything done to it that isn’t intended to restore it to its original state (i.e. no additions, no vinyl windows etc) while promoting restoration (i.e. taking out the vinyl windows and replacing with wood windows like the originals). In return you get a tax break (which you are supposed to apply to projects for restoring and maintaining your house).
Hopefully our house will past muster.