From Downtown Atlanta: Take Howell Mill Rd Nw To Harper St Nw. Turn Left Onto Harper St Nw. 1805 Harper St Nw Will Be On Your Left. From Hartsfield-Jackson Airport: Merge Onto I-75 N. Take Exit 252A For Howell Mill Rd Nw. Turn Right Onto Howell Mill Rd Nw, Then Left Onto Harper St Nw. 1805 Harper St Nw Will Be On Your Left. From Midtown Atlanta: Take Howell Mill Rd Nw To Harper St Nw. Turn Left Onto Harper St Nw. 1805 Harper St Nw Will Be On Your Left.