A developer's call for a dense cluster of residences, retail and other uses north of Decatur is unlikely to get approved Tuesday by the DeKalb County Commission. Julian LeCraw & Co. has asked that land it controls near the intersection of North Druid Hills and Clairmont roads be designated as a "town center" under DeKalb's long-term comprehensive plan. The land in unincorporated DeKalb contains the aging Williamsburg Apartment complex. It currently is designated for "suburban" use. The proposed use would allow greater density and more intense uses, such as shops, restaurants and condos, assuming the land also was re-zoned.