Sutton Valley has long held the reputation of being the creme de la creme in Oak Park. While Regency is newer, Sutton Valley has much larger lot sizes. Those living in Sutton Valley tend to have beautiful entertainer's yards that they make good use of, the homes in both Regency and Chambord simply don't have that luxury as a rule. Also, the homes in Regency are much closer together while in Sutton Valley everything is on a grander scale. The recent decline in prices has taken awhile to hit Sutton Valley but now that it has, this is an excellent time to make an investment.
For the record, both are quality areas, benefitting from Oak Park's top drawyer school system. Should you want help looking in either area, please give me a call. I not only work primarily in Oak Park, I live here too! Sim Carter