D.C. Code § 42-3131.09
Fees.
(a) The owner of a vacant building shall register the building and pay registration fees within 90 days after it becomes a vacant building.
(b) Fees for registration and renewal shall be as follows:
(1) The initial registration fee shall be $350; and
(2) The renewal registration fee shall be $500.
(c) The Mayor may increase the fees set forth in subsection (b) of this section through rules issued pursuant to § 42-3131.21 .