within the residential neighborhood shall be devoted to residential uses. (3) One (1) accessory dwelling unit is permitted on any single family detached (SFD) lot. Such accessory dwelling may be contained within the primary structure or may
Read it in the chapter →Land use · Rockingham County Unincorporated, Virginia
accessory dwelling unit
How this ordinance defines it
The operative definition is the local one. Codes routinely subdivide a category into tiers — “day care 2, family”, “group home 2” — and attach different permissions to each, so only Rockingham County Unincorporated’s own text settles what this covers.