A 185-lot subdivision off Buffington Farm Road in North Hall was approved Wednesday by the Hall County Board of Commissioners. The development, also off the Chattahoochee River arm of Lake Lanier, had been set at 166 lots but got a bump when Hall County sewer was added to the mix. Officials spent about 30 minutes talking about a sewer tie-in with the development, as well as the overarching prospect of opening up the otherwise untapped area north of a developing industrial area off Ga. 365 to sewer.