Md. Code Ann., Land Use § 9-1606
A property deeded before January 1, 1994, and improved with a residence before January 1, 2007, is exempt from the subdivision regulations adopted by the county under Title 5 of this article for purposes of constructing additions to the residence or accessory buildings.
Added by Acts 2012, c. 426, § 2, eff. Oct. 1, 2012.