I went to the search page for combo, typed in alsdc and hit statistics and it showed 16,738 actives. I did not include shadow zips. 4091 properties pending.
I maintain what I have said all along, desireable properties in desireable areas are moving. Here is an example where I currently rent and want to live in Scripps. I want old Scripps though, not Stonebridge, and not anything in New Scripps. However doing a search on 92131 I see a total of 85 active listings. However only 13 of those active listings were built before 1985.
By the way, as you noted SDA the pending ratio is telling. Right now there are 52 pendings in 92131.
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This is by NO WAY representative of the overall market. Other neighborhoods have serious problems. Still other more desireable neighborhoods do not.