http://www.zillow.com/advice-thread/is-there-a-map-legend-that-explains-the-icons/248527/ Zillow Advice | Zillow Real Estate http://www.zillow.com/advice-thread/is-there-a-map-legend-that-explains-the-icons/248527/ I think the blue diamond according to an old Zillow mod post are "homes for that particular area that are not posted for sale nor on a Make Me Move status." I think the blue house icon is for make me move. If there is no icon at all, Zillow may not have enough info to give that property a Zestimate yet. Mon, 22 Jun 2009 17:42:00 GMT http://www.zillow.com/advice-thread/is-there-a-map-legend-that-explains-the-icons/248527/ 2009-06-22T17:42:00Z