District of Columbia Code Division VIII. General Laws. § 50-1641.05. Residential building bicycle parking requirements.

(a)(1) A residential building owner shall provide secure bicycle parking spaces for all existing residential buildings with 8 or more units.

(3) Where it can be demonstrated that providing bicycle parking spaces required under this subsection is not physically practical, that undue economic hardship would result from strict compliance with the regulation, or that the nature of the building use is such that bicycle parking spaces would not be used, the Mayor may grant, upon written application of the owner of the building, an appropriate exemption or reduced level of compliance. In such cases, a certificate documenting the exemption or reduced level of compliance shall be issued to the building owner.

(b)(1) A residential building owner shall provide at least one secure bicycle parking space for each 3 residential units for all new residential buildings and substantially rehabilitated buildings with 8 or more units.

(2) Where it can be demonstrated in a substantially rehabilitated building that providing bicycle parking spaces is not physically practical, that undue economic hardship would result from strict compliance with the regulation, or that the nature of the building use is such that bicycle parking would not be used, the Mayor may grant, upon written application of the owner of the building, an appropriate exemption or reduced level of compliance. In such cases, a certificate documenting the exemption or reduced level of compliance shall be issued to the building owner.

(3) For the purposes of this subsection, “substantially rehabilitated” means any improvement to or renovation of a residential building for which the improvement or renovation equals or exceeds 50% of the assessed value of the building before the rehabilitation. Existing bicycle parking spaces before rehabilitation shall be considered in calculating the total number of required parking spaces under this subsection.