D.C. Mun. Regs. tit. 11-K, § 800
800.1 The purposes of the Mixed-Use-Uptown Arts (ARTS) zones (ARTS-1 through ARTS-4) are to:
800.2 The ARTS-1 zone is intended to permit moderate-density, mixed-use development.
800.3 The ARTS-2 zone is intended to permit medium-density, compact mixed-use development, with an emphasis on residential development.
800.4 The ARTS-3 zone is intended to permit medium-density, mixed-use development, with a focus on employment.
800.5 The ARTS-4 zone is intended to permit medium- to high-density, mixed-use development, with a balance of uses conducive to a higher quality of life and environment for residents, businesses, employees,
and institutions.
800.6 The requirements of this chapter shall apply to all new construction and to any addition, alteration, or repair that within any twenty-four (24) month period exceeds seventy-five percent (75%) of the assessed value of the building; provided:
(a) The cost basis for alterations or additions to an existing building shall be the amount indicated by the applicant on the application for a building permit; and
(b) The assessed value of the building shall be the value in the records of the Office of Tax and Revenue as of the date of the building permit application.
SOURCE: Final Rulemaking published at 63 DCR 2447, 3176 (March 4, 2016 – Part 2).