Open House in Alta Vista South Community, Placentia. Sunday, May 3, 2015 12:00 PM 4:00 PM 12:00 16:00 1060 MAERTZWEILER Dr Placentia, CA, 92870 United States (map) Google Calendar ICS 1060 Maertzweiler Drive - Placentia, CAOpen Sunday, May 3rd from 12:00 - 4:00. MORE LISTING INFORMATION