Guida
The Former Koga Family Residence was built in 1884 (Meiji 17) as the home of Zenpei Koga, the founder of Koga Bank. Unlike many standard houses along the old highways that featured simple gabled roofs, this residence is distinguished by its sophisticated Irimoya-style (hip-and-gable) roof, strictly following the prestigious samurai residence style. The main residential sections serve as a precious architectural relic of a Meiji-era entrepreneur, showcasing a truly authentic and grand estate layout.
The building was commissioned by Zenpei Koga, who founded and served as the president of Koga Bank. Following the bank's dissolution, the residence passed through the hands of his successors, Zenbei and Zenichiro, before being used as a traditional Japanese restaurant (ryotei) from 1954. In 1991, the property was acquired by Saga City, which undertook a meticulous restoration to return the parts modified during the restaurant era back to their original construction state. In 1995, the residence was officially designated as a Important Cultural Property of Saga City.
The most striking feature of the residence is the massive grand hall, which spans approximately 50 tatami mats. The interior is adorned with exquisite craftsmanship, visible in the intricate details of the transoms (ranma), sliding doors (fusama), and wooden panels (itado). The exterior, with its imposing Irimoya roof, and the overall design incorporating samurai-style elements, convey the high social status and prestige of the era. These features provide invaluable insight into the lifestyle and spatial standards of successful entrepreneurs during the Meiji period.
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 (Doll Festival) period, so it is advisable to check in advance. Visiting during the bright daylight hours is highly recommended, as the natural light streaming through the windows beautifully highlights the delicate details of the transoms and wooden doors.
Visitors can observe the architectural styles of the Meiji era and learn about the daily lives of successful entrepreneurs through various exhibits and structural displays. Additionally, the nearby 'Romanza' cafe, located in another building of the museum complex (the former Koga Bank), offers a wonderful way to spend time in a historic atmosphere. Some rooms within the residence are also available for rent for private lessons or meetings.
The Former Koga Family Residence is located in the Yanagimachi area of Saga City, a district that preserves the historic atmosphere of the old Nagasaki Kaido highway. The Saga City Museum of History and Folklore consists of seven distinct buildings, including the Former Koga Bank, Former Ushijima House, and Former Sansei Bank. Exploring these sites together offers a much deeper understanding of the region's local history.
As this is a preserved historical site, please observe proper etiquette during your visit. Care should be taken when walking on the floors to prevent damage.