Roy Smith Building Main Building (former Main Building of

Roy Smith House Main Building (Former Otani Residence Main House): A Spanish-Style Showa Mansion at the Foot of Mount Rokko

Tucked into the southern slopes of Mount Rokko in Kobe's Nada Ward stands a graceful 1935 mansion that quietly tells one of modern Japan's most touching stories of cross-cultural friendship. The Roy Smith House Main Building, originally constructed as the residence of a prosperous Hyogo trading family, became famous in 1960 when devoted students purchased it for their beloved American professor — a man who had taught at Kobe University and its predecessor schools for nearly six decades. Today the building is a nationally Registered Tangible Cultural Property, prized as a rare and beautifully preserved example of the Spanish-style domestic architecture that flourished in the cosmopolitan Hanshin corridor between Osaka and Kobe in the early Showa era.

Historical Background

The mansion was completed in 1935 (Showa 10) for Otani Shigeru, a successful trader whose family fortune is said to have descended from the Meiji-era foreign merchant J. J. Germaine, who reportedly made his name in the export trade of Ryukyu lily bulbs. The building site, on the gentle southern foothills of Mount Rokko in the Shinohara district, was at that time one of the most coveted residential addresses in Japan — a hillside neighborhood where wealthy industrialists, traders, and a sizable foreign community had built distinctive Western-style homes since the late nineteenth century.

The architect was Shimizu Eiji, one of the leading designers active in the Hanshin region during the early Showa period. Shimizu is also remembered for the Mikage Public Hall and the Konan-zuke Materials Hall, both of which remain landmarks of Kobe's Higashinada Ward. For the Otani family he chose a Spanish Revival vocabulary that was then highly fashionable in the Hanshin-kan, the cultural belt linking Osaka and Kobe.

The story took its most poignant turn in 1960. By that year, Roy Smith — an American teacher who had arrived in Kobe in 1909 — had spent more than half a century educating generations of Japanese students. To honor him, his former pupils pooled their resources, acquired the Otani residence in the name of the Kobe University Rokkodai Support Foundation, and on 21 November 1960 held a naming ceremony christening the mansion "The Roy Smith House." Professor Smith lived here for the final eight years of his career, until he returned to the United States in 1968 at the age of eighty-nine. The building has been carefully maintained ever since by the foundation, with renovation campaigns recorded between 1946 and 1965 and again in 2007.

Why It Was Designated a Cultural Property

The Roy Smith House Main Building was registered as a National Tangible Cultural Property of Japan on 28 October 2011. Several factors made it worthy of this recognition.

First, it stands as one of the increasingly scarce surviving examples of the Spanish-style residences that defined the Hanshin-kan modern movement. The 1995 Great Hanshin-Awaji Earthquake destroyed or damaged many comparable houses, making each remaining example all the more historically valuable. Second, the building expresses with unusual clarity the architectural language of its decade: rounded Spanish roof tiles, half-timber gables, three-bay window groupings, and an interior decorated with carefully chosen tile work and stained glass that capture the modern sensibility of the early Showa years. Third, the documented design by Shimizu Eiji, together with the property's intact relationship to its garden, garage, and gate, gives the site an exceptional level of architectural integrity. Finally, the building carries unique cultural significance as the former residence of Roy Smith, a foreign educator whose long career embodied the international spirit of pre- and post-war Kobe.

Architectural Highlights

The main building is a two-story wooden structure with a hipped roof, covering a generous floor area of 420 square meters. The exterior is a textbook expression of the Spanish Revival style that swept through Kobe and Ashiya in the 1920s and 1930s. Distinctive rounded Spanish tiles crown the roof, while half-timbered details, smooth stuccoed walls, and groupings of three arched windows give the façade its warm, Mediterranean character. Above the entrance, an opening finished in a wall-bearing style nods subtly to traditional Japanese building methods, producing a quiet and confident dialogue between East and West.

Inside, the rooms are arranged in a comfortably Western manner but enriched with carefully placed tilework and stained glass windows that capture the optimism and elegance of early Showa modernism. These materials, paired with fine joinery and considered proportions, make the interior an important reference point for students of Japan's interwar domestic architecture, even though the rooms are not generally accessible to visitors.

The site as a whole is part of a coordinated ensemble. A separately registered Roy Smith House Garage stands at the northeastern corner of the grounds, also designed in matching colors and materials, and the gate and surrounding garden complete the dignified residential setting that Shimizu Eiji originally created.

Visitor Information

It is important to note that the Roy Smith House Main Building is a privately managed property and is not generally open to the public. Visitors should respect the privacy of the foundation and the residential character of the surrounding neighborhood. The exterior, however, can be appreciated from the public road that passes the site.

The mansion lies on a sloping street above Hankyu Rokko Station, a short walk from the station along the road that climbs the foothills of Mount Rokko. Visitors traveling from central Kobe will find the area easily reached by the Hankyu Kobe Line, while travelers arriving on the JR Kobe Line can transfer at JR Rokkomichi Station. From either station, the walk uphill provides a pleasant introduction to the leafy Shinohara residential district, with its early twentieth-century villas and quiet, garden-lined lanes.

Surrounding Attractions

The neighborhood around the Roy Smith House offers a rewarding day of exploration for visitors interested in modern Japanese architecture and Kobe's international history. Just downhill stands Minatogawa Shrine and the venerable campus of Kobe University, where the Kobe University Main Building and the Kanematsu Memorial Hall — both also nationally Registered Tangible Cultural Properties — survive as important examples of early twentieth-century educational architecture. A short trip toward the coast brings visitors to the Kitano Ijinkan district, the most famous concentration of Western-style residences in Japan, with more than a dozen preserved foreign merchant houses open to the public. For those interested in Shimizu Eiji's other works, the elegant Mikage Public Hall in neighboring Higashinada Ward offers another opportunity to experience this architect's restrained and confident modernism. Finally, a ride on the cable car or ropeway up Mount Rokko itself rewards visitors with sweeping views over Osaka Bay and the mountain greenery that has long made this part of Kobe so beloved.