12 C.F.R. § 541.25 Single-family dwelling.
Title 12 - Banks and Banking
The term single-family dwelling means a structure designed for residential use by one family, or a unit so designed, whose owner owns, directly or through a non-profit cooperative housing organization, an undivided interest in the underling real estate, including property owned in common with others which contributes to the use and enjoyment of the structure or unit. [69 FR 76602, Dec. 22, 2004]
Title 12: Banks and Banking
PART 541—DEFINITIONS FOR REGULATIONS AFFECTING FEDERAL SAVINGS ASSOCIATIONS
§ 541.25 Single-family dwelling.