The exterior of the house is notable for its traditional Japanese style. Tsukushi Makino commented on it, saying "It's like a castle in a samurai movie." The house, or rather mansion, is quite large at four thousand square meters and sits on seven thousand and five hundred square meters of land. Besides a living room, dining room, and kitchen, it has some thirty bedrooms or extra rooms. Rui's bedroom can be described as minimalist as it only contains the necessities.
In New York City, the Hanazawa family owns a spacious condominium. Unlike their home in Tokyo, it was described as "modern." It has a minimal amount of furniture, similar to Rui's bedroom, though with more decorations. When Tsukushi went to New York, Rui flew over to meet her. He found her after a devastating encounter with Tsukasa Domyoji and brought her to his condo. There she spent the night. Two days later, Tsukushi and Rui departed the condo.
The Hanazawas' own a spacious villa in the Tuscany region of Italy. Rui often visited it with his friends when they were children. Their favorite spot was the courtyard, where they had four trees planted to give them shade. The Hanazawa family also own vineyards on a nearby hill. While Rui was on an inspection tour, an adviser told him that the Hanazawa Company was planning on demolishing the vineyards for a resort since they were not guaranteed a good crop in ten years time. Rui was initially uninterested. However, after an incident, Rui decided to keep the vineyards. He hoped that if there was a good crop, he could share a bottle of wine on the hill with his friends.