roof tiles, may be installed on the roof of a single-, two-, or multi-family dwelling or on the roof of an accessory building or structure on a single- or two-family dwelling unit lot, provided that the
Read it in the chapter →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 Chesapeake’s own text settles what this covers.