Less than substantial improvement.
Baltimore City Code, Article 7, § 3-6
in effect§ 3-6. Less than substantial improvement.
(a) In general.
If the construction, reconstruction, or modification of any structure constitutes less than a substantial improvement:
(1) the installation of any electric, plumbing, or mechanical systems must comply with § 3-10 {“Electric, plumbing, and mechanical systems”} of this subtitle; and
(2) those parts of the improvement below the flood-protection elevation must:
(i) be floodproofed; and
(ii) otherwise comply with the design and construction standards of ASCE 24.
(b) Exceptions.
(1) Routine maintenance, repairs, and the in-kind replacement of mechanical, electrical, and plumbing systems are exempt from the requirements of this section.
(2) For in-kind replacement, the systems must be elevated to the maximum extent possible to avoid or minimize flood damage.
(Ord. 14-208; Ord. 11-516; Ord. 88-188.)
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/7/3-6Fetched: 10/25/2026