The south eastern part of East Cobb has been holding up pretty well as far as average price goes. Prices have been flutuating within the same range over the past 2-3 years. The number of homes selling have dropped dramatically.
Average number of days on the market spiked up to 204 and sales to original list price ratio has gone down to around 90%.
I'm starting to see a few more foreclosures come up in this area but they still seem to be relatively rare. The high ranking school districts are a big plus in this area. I think that when people in the Sandy Springs area can't afford to send their kids to private school anymore, East Cobb, just across the Chattahoochee River, will be the first place these families consider moving to.
The numbers below are for single family detached homes in FMLS area 83. Links to stats for other areas are at the bottom of the page.
Year over year, total transactions decreased from 31 to 22 (-29%)
Year over year, average sales price increased from $397,600 to $405,369 (+2%)
All data for graphs is taken from the FMLS statistics put out by Smart Numbers.

For other market areas as shown in the following map, please click on the links below.

All areas combined: Summary of all FMLS areas
Area 13: North Fulton, Alpharetta/Roswell West of 400
Area 14: North Fulton, Alpharetta East of 400
Area 131: Sandy Springs North of 285
Area 132: Sandy Springs Southe of 285
Area 21: Buckhead
Area 23: Midtown/Virginia Highlands
Area 31: South Fulton, West End
Area 33: South Fulton outside 285
Area 81: East Cobb, North
Area 82: East Cobb, Central
Area 83: East Cobb South
Area 72: South Cobb
Area 73: Cobb West Central
Area 74: Cobb West
Area 75: Cobb Northwest
Area 121: North DeKalb, Dunwoody
Area 41: DeKalb, Tucker
Area 42: DeKalb, Stone Mountain
Area 43: DeKalb South
Area 221: Forsyth East
Area 222: Forsyth Southwest
Area 62: Gwinnett, Duluth/Buford
Area 64: Gwinnett, Southwest
Area 161: Clayton County