D.C. Mun. Regs. tit. 11, r. 11-738
A veterinary boarding hospital may be permitted as a special exception if approved by the Board of Zoning Adjustment under § 3104, subject to the requirements of this section.
A veterinary boarding hospital may board any animal permitted to be lawfully sold in the District of Columbia, pursuant to D.C. Official Code § 8 -1808(h)(1).
No more than fifty percent (50%) of the gross floor area of the veterinary boarding hospital may be devoted to the boarding of animals.
The veterinary boarding hospital shall be located and designed to create no objectionable condition to adjacent properties resulting from animal noise, odor, or waste, including residential units located in the same building as the use.
The use shall not be located within twenty-five feet (25 ft.) of a lot within a Residence District. The twenty-five feet (25 ft.) shall be measured to include any space on the lot or within the building not used by the veterinary boarding hospital and any portion of a street or alley that separated the use from a lot within a Residence District. Shared facilities that are not under the sole control of the veterinary boarding hospital, such as hallways and trash rooms shall not be considered as part of the veterinary boarding hospital.
External yards or other external facilities for the keeping of animals shall not be permitted.
Pet grooming, the sale of pet supplies, and incidental boarding of animals as necessary for convalescence, are permitted as accessory uses.
The Board may impose additional requirements as it deems necessary to protect adjacent or nearby properties.
D.C. Mun. Regs. tit. 11, r. 11-738