For most of the last 18 months as the real estate market declined and the number of foreclosures rose it was unusual to see a property anywhere west of Classon Avenue show up in Property Shark’s list of weekly auctions. So we were interested to see the line-up for this Thursday at Kings County Courthouse: Among the usual smattering of addresses in Bed Stuy, Bushwick and elsewhere were 426 6th Avenue (Park Slope), 325 Clinton Avenue (Clinton Hill), 40 Remsen Street (Brooklyn Heights) and 451 State Street (Boerum Hill). Statistical anomaly or a changing of the tide?