Hyoudou Residence

The Hyoudou Residence is the home of Issei Hyoudou and his parents. It would later become a base for the allied factions in Volume 5, following the appearance of the Khaos Brigade, as well as a home for all of the female members of the Occult Research Club.

Appearance
The Hyoudou Residence was originally a normal two-story terrace house with a light blue exterior, a balcony on the second floor, and a brown roof. It would later be renovated by the Gremory Clan in Volume 5 of the light novels into a large, six-story house with three large basements.

Before Renovation

 * First Floor: Includes the living room and kitchen.
 * Second Floor: Includes Issei's room, Asia's room, Rias' room, Issei's parents' room, and a bathroom.

After Renovation

 * First Floor: Includes the living room, kitchen, and a Japanese-styled room (washitsu).
 * Second Floor: Includes Issei, Rias, and Asia's rooms, with Issei's room being in the middle. It has two interconnecting doors on each side: one connecting to Rias' room, and one connecting to Asia's room.
 * Third Floor: Includes Issei's parents' room, a study, and a store room.
 * Fourth Floor: Includes Akeno, Xenovia, and Koneko's rooms.
 * Fifth Floor: Not much is known about the fifth floor as of yet.
 * Sixth Floor: Originally an empty floor, the top floor was converted into a meeting room for the three factions (also known as the VIP Room).
 * First Basement Floor: Includes a movie theater, training rooms, and a large bath which has a refrigerator filled with three different flavors of milk (fruit milk, regular milk, and coffee milk).
 * Second Basement Floor: Includes a heated indoor swimming pool.
 * Third Basement Floor: A mostly vacant floor that is generally used for storage.

All floors in the renovated house are accessable via an elevator.

Known Residents

 * Issei's parents
 * Issei Hyoudou
 * Asia Argento
 * Rias Gremory
 * Akeno Himejima
 * Xenovia
 * Koneko Toujou
 * Irina Shidou
 * Rossweisse
 * Azazel (Occasional)
 * Ravel Phenex
 * Sirzechs Lucifer (Occasional)
 * Grayfia Lucifuge (Occasional)
 * Ophis

Trivia

 * Rias' father, Lord Gremory, suggested making it into a palace, but Rias talked him out of it.
 * Issei and his father are the only permanent male residents.