Former Kameoka Family Residence

A Silk Fortune Cast in Timber

On the lawns of Hobara Sports Park in Date, Fukushima, a yellow timber building rises toward a semi-octagonal tower at its center, the main ridge carrying two slender lantern spires that read almost like horns from a distance. This is the Former Kameoka Family Residence, completed around 1904 by a family that had grown wealthy in the silkworm-egg trade. From the outside it presents as a Western-style mansion of the Meiji period. Step through the entrance and the rooms turn almost entirely Japanese, arranged around formal tatami parlors finished in rare hardwoods.

The house was designated an Important Cultural Property of Japan on 25 July 2016. It now stands beside the Hobara Museum of History and Culture, which manages it on behalf of Date City, and a single ticket admits visitors to both buildings.

The Family That Sold Silkworm Eggs

The Kameoka fortune grew out of sericulture. Across the Date region of northern Fukushima, producing and selling silkworm eggs, known as sanshu, was a major source of income from the late Edo period onward. Kameoka Masamoto built the family's wealth on that trade before serving in the village, county, and prefectural assemblies.

Masamoto raised the house on a large plot in Date-saki, part of present-day Koori, in the later Meiji years. Design work was handled by Egawa Saburōhachi, a technical official of Fukushima Prefecture known for Western-influenced public buildings, while the actual construction is attributed to Ogasawara Kunitarō, a carpenter from nearby Iizaka.

In 1986 the building was donated to the former town of Hobara. When the original site changed hands and the structure faced demolition, the main residence was dismantled and rebuilt inside Hobara Sports Park in 1995, where it has stood ever since.

Why It Became a National Treasure of Architecture

What earned the house its national designation is the way two architectural worlds meet inside one structure. The Agency for Cultural Affairs points to the partnership behind it: a prefectural technician trained in Western forms working alongside a local master carpenter. The result carries a clear regional character and helps trace how modern architecture took shape across the Tōhoku region.

The exterior follows the assured manner of regional Meiji wooden Western buildings, led by the semi-octagonal projection at the front. The interior keeps to Japanese convention, centered on the parlor and worked in fine timber with real skill. The designation recognizes both faces as accomplished design rather than resting on a single showpiece feature.

What to Look For

The front is built for first impressions. The semi-octagonal tower climbs from the ground floor past the eaves, giving the façade a strong central axis; measured from the lawn to the top of the dormer window, the building reaches about 16.25 meters. Two decorative lantern spires ride the main ridge alongside a chimney, none of them functional. A weathercock once topped the composition but was lost around the time of the 2011 Great East Japan Earthquake.

Indoors, the carpentry rewards a slow walk. The owner's sitting room, nicknamed the zelkova room, sets a single zelkova plank into a raised coffered ceiling, and one post shows an upward grain pattern prized as a sign of advancement. On the second-floor corridor the floorboards fan out at the corners rather than meeting in a dead end, a deliberate gesture toward good fortune. The staircase toward the third-floor observatory is built of persimmon wood, its carved side panel playing on a word meaning to rake good things together. Chestnut, resistant to fire and water, lines the kitchen of the living wing.

The materials read like a catalogue of prized woods: zelkova, Akita cedar, rosewood, ironwood, black persimmon, and buried timber recovered from the Abukuma River. Glass, costly at the time, appears generously throughout.

Getting There and Nearby

The residence sits inside Hobara Sports Park, about a three-to-five minute walk from Ōizumi Station on the Abukuma Express line, or roughly ten minutes by car from the Date-chūō interchange. The adjoining Hobara Museum of History and Culture holds local sericulture and silk-reeling tools along with folk material, and one admission covers both.

Date and neighboring Koori keep several reminders of the same Meiji building culture. The former Date District Office in Koori is another Western-influenced public building of the era, and the surrounding countryside still carries the silk-farming landscape that paid for houses like this one. For a longer outing, the hill of Ryōzen, a national Historic Site and Place of Scenic Beauty, lies within easy reach.