Renovation of a luxury rental apartment for foreigners located just a 2-minute walk from Aoyama-itchome Station. Specifically, 8 out of 36 units on two floors were converted into office spaces. The renovation aimed to utilize the existing grandeur and antiquity of the building while considering the limited budget to bring out its potential.

After completion, all 36 office spaces were fully occupied in just two and a half months. The rental prices increased from the previous ¥15,000 per tsubo to ¥23,000 per tsubo, resulting in a significant increase in revenue.