Department HQ
From Tardis Wiki, the free Doctor Who reference
Department HQ was the headquarters of the Department, located in London. A mobile HQ also existed.
In 2050, Thorne hosted an open house in the hopes of trapping K9. (TV: Lost Library of Ukko)
Later that year, K9 "borrowed" a control cortex so Gryffen could repair Birdie from a storage room in the Department HQ. (TV: Mutant Copper)