Guide
The Former Koga Family Residence was built in 1884 (Meiji 17) as the home of Zenpei Koga, the founder of Koga Bank. Unlike many common houses along the highways that featured simpler gable roofs, this residence is distinguished by its sophisticated Irimoya-zukuri (hip-and-gable) roof, following the prestigious samurai residence style. The main living areas, including the primary reception rooms, serve as a magnificent architectural relic of a high-ranking Meiji-era industrialist's lifestyle.
The residence was constructed by Zenpei Koga, who founded and served as the president of Koga Bank. The house was later inhabited by his descendants, Zenbei and Zenichiro (the second Zenbei). Following the dissolution of the bank, the property transitioned from the Koga family's hands and was used as a high-end restaurant (ryotei) starting in 1954. In 1991, the building came under the ownership of Saga City, which undertook restoration work to return the sections modified during its time as a restaurant back to its original construction state. In 1995, the residence was officially designated as an Important Cultural Property of Saga City.
The most striking feature of the building is the massive grand hall, which boasts an area of approximately 50 tatami mats. The interior details, such as the decorative transoms (ranma), sliding doors (fusama), and wooden shutters (itado), showcase the exquisite craftsmanship of the era. The exterior, with its grand Irimoya-style roof, and the overall design reflecting samurai-style prestige, offer a glimpse into the high social status and refined lifestyle of a Meiji-era industrialist.
The residence is open to the public as part of the Saga City Museum of History and Folklore. Please note that opening hours may change during the Hinamatsuri (Girl's Day) festival period, so it is advisable to check ahead of your visit. During the bright daylight hours, the natural light streaming through the windows beautifully illuminates the intricate details of the transoms and wooden doors, making it an ideal time for photography and observation.
Visitors can observe and learn about Meiji-era architectural styles and the daily lives of the wealthy elite through the preserved structures and exhibits. Additionally, the nearby Saga City Museum of History and Folklore complex includes the cafe "Romanza," located in a historic building, where you can enjoy a relaxing break in a nostalgic atmosphere. Some rooms within the complex are also used as rental spaces for traditional arts or private meetings.
The area around Yanagimachi in Saga City, where the residence is located, is home to several historical buildings that preserve the atmosphere of the old Nagasaki Kaido highway. The Saga City Museum of History and Folklore consists of seven different buildings, including the Former Koga Bank, Former Ushijima House, Former Sansei Bank, Former Fukuda House, Former Morinaga House, and Former Hisatomi House. Exploring these sites together provides a much deeper understanding of the region's local history.
As this is a preserved historical site, please observe proper etiquette to protect the heritage. Please be mindful of your footsteps and the floor surfaces while walking.