Former Nozaki Family Residence (Kojima Ajino, Kurashiki City, Okayama Prefecture)

The Former Nozaki Family Residence: a salt magnate's estate in Kojima

The Former Nozaki Family Residence (旧野﨑家住宅, Kyū Nozaki-ke Jūtaku) is a late Edo-period estate of a regional headman in Kojima Ajino, Kurashiki City, Okayama Prefecture, begun around 1833 by the salt-field developer Nozaki Buzaemon (1789 to 1864) and designated an Important Cultural Property of Japan in 2006. Locals also call it Nozaki-ke Kyūtaku, the old Nozaki house. Today the Ryuo Kaikan Public Interest Foundation runs the property as the Nozaki Family Salt Industry Museum.

Kojima sits on the Seto Inland Sea, where long hours of sun and a wide tidal range suit salt making. Buzaemon put the capital he had earned making and selling tabi socks into reclaiming the shallows off the villages of Ajino and Akasaki, and in 1829 he completed the first Nozaki salt fields, built on the irihama system that let the tide soak sand beds with seawater. Farmland reclamation followed, and in 1833 the domain of Okayama raised him to the rank of senior village headman (ōjōya). His grandson Nozaki Bukichirō (1848 to 1925) took a seat in the House of Peers in 1890.

The layout is easy to read once you are inside. The estate runs north to south at the foot of Mount Ryuo, which closes it off on the west. The main house stands near the middle facing east, with the entrance wing and the formal reception hall stepping out to the southeast. The two gates line the eastern edge, and a neat row of storehouses runs north of the main house.

According to the museum, the grounds cover about 3,000 tsubo, and the buildings add up to roughly 1,000 tsubo of floor space (a tsubo is about 3.3 square meters). The family business became a company in 1934, the Former Nozaki Family Residence passed to the foundation in 1970, it opened to the public in 1987, and it was registered as a museum in 1995.

Why the Former Nozaki Family Residence is an Important Cultural Property

The Former Nozaki Family Residence was designated an Important Cultural Property on December 19, 2006. The designation covers 12 buildings: the main house (shuoku), the entrance wing, the Omote Shoin reception hall, the Nagayamon gatehouse, the Onarimon gate, and seven storehouses and service buildings named Uchigura, Yagugura, Ōkura, Shoruigura, Shingura, Okagura and the miso storehouse. Eight more structures are included as attached items: a barn, a toilet building, the teahouses Yōshittei, Kanshotei and Rinchitei, a covered waiting bench for tea guests, and two garden privies. The Agency for Cultural Affairs listed it under the criterion for buildings that show a school or regional character in a striking way.

The dates are unusually well documented, thanks to ridge tags and family records. The main house went up around 1833, the two gates in 1838, and the entrance wing and reception hall in 1852. Storehouses were added one by one into the mid-Meiji years: the document store in 1890 and the inner storehouse in 1901. The bedding storehouse, built in the late Edo period, was moved to its present spot in 1889.

In its official commentary the Agency makes two points. The Former Nozaki Family Residence is a high-quality upper-class farmhouse on a grand scale, with a long main house of unusual plan and a reception hall of refined workmanship. And the estate keeps its full set of parts, down to the miso store and the garden teahouses, so the whole compound still reads as it did at the end of the Edo period. The commentary ranks it among the representative houses of the Setouchi region.

What to see at the Former Nozaki Family Residence

The main house and its nine rooms in a row

The spine of the Former Nozaki Family Residence is the main house, a strikingly long building. Its northern living block is two storeys high and measures 30.2 meters by 14.1 meters; a single-storey formal wing, 11.1 meters long, is joined to its south end. The museum gives the total length as 23 ken, about 42 meters, and from one end you can look straight through a run of nine tatami rooms.

A front entrance and an earth-floored passage (tōri-doma) cut the living block in two. North of the passage are six rooms; to its west lies a large kitchen, where the museum says some 50 people ate and worked during the day, and where old cooking tools are still on show. The formal wing has an eight-mat upper room with Tokonoma, shelves and a Tsukeshoin writing alcove, plus a ten-mat anteroom, and a projecting wing holds the so-called Genji Room. The roof is hip-and-gable with full clay tiles, and the upper eaves rest on cantilevered beams in the Degeta-zukuri manner.

Omote Shoin, the reception hall

Built in 1852 to receive guests, the Omote Shoin measures 16.2 meters by 11.4 meters. Its best room, 12.5 mats, faces south with alcove, shelves and writing desk; a 15-mat room with its own alcove sits to the north, and a tatami corridor and veranda wrap around the east and south sides. The posts and rails are fine hinoki cypress, and the transoms between the rooms are carved with waves. Very little was altered later, so the frame and roof structure are close to original.

Sit on the veranda and look up. The beam carrying those deep eaves is, the museum says, a single length of red pine 17 meters long. The entrance wing that links the hall to the main house has a formal Shikidai step for visitors and a separate everyday entrance for the household.

Nagayamon and Onarimon gates

The Former Nozaki Family Residence greets visitors with a Nagayamon, a gatehouse with rooms on both sides of the passage, set on a carefully fitted stone base and facing east. It is 25.9 meters long, with projecting lattice windows on the street side and board siding along the lower walls. The rooms were used as a rest area and occasional lodging. Just south of it stands the Onarimon, a single-bay Yakuimon gate 2 meters wide, flanked by roofed walls; an onarimon traditionally served visitors of high rank. Records date both gates to 1838.

Six storehouses and a miso store

North of the main house, six storehouses stand in a row: Uchigura, Yagugura, Ōkura, Shoruigura, Shingura and Okagura. All are two-storey Dozo-zukuri buildings with clay-tile roofs and Namako-kabe walls, the white lattice of raised plaster seams laid over dark tiles. The biggest, Ōkura, is 16.3 meters by 7.9 meters. The museum points out that each store was built in a different year and each has its own namako pattern, so it pays to walk the row slowly and compare. Okagura was converted into the museum's second exhibition hall in 1997 and shows household tools used since the Edo period.

Behind the row is the miso storehouse, dating from the late Edo period. It has a cellar-like room about 4 meters square on the north side of the ground floor and a well in its southwest corner, one of the humbler buildings that make the estate complete.

Dry garden and three teahouses

Southeast of the Omote Shoin lies a dry landscape garden in which the level ground stands for the sea. Artificial hills, rock groupings and a Roji tea path are arranged around it, and a Hōrai rock group of stone from Inujima doubles as a dry waterfall. Satsuki azaleas bloom in early summer. Three teahouses are scattered through the garden: Yōshittei copies Yūin, a celebrated tea room of the Urasenke school; Kanshotei, built of cedar on a hill, was meant for watching the dawn; and Rinchitei turns a round window toward a mossy dry pond.

Visiting the Former Nozaki Family Residence

The Former Nozaki Family Residence is open as the Nozaki Family Salt Industry Museum, and visitors walk through the main house, the reception hall and the storehouse galleries. Hours are 9:00 a.m. to 4:30 p.m., with the gates closing at 5:00 p.m. It is closed on Mondays (on the following day when Monday is a public holiday) and from December 25 to January 1. Extra closing days do occur, so check the notices on the official website before you go.

Admission is 500 yen for adults (high school age and up), 300 yen for elementary and junior high students, and free for preschool children. On Saturdays, Sundays and public holidays, school-age visitors through high school get in free. Groups of 30 or more receive a 20 percent discount and should book ahead.

By train, get off at JR Kojima Station on the Seto-Ohashi Line. The museum is about 1 kilometer northwest, roughly 25 minutes on foot according to the official site. Drivers can reach it in about 10 minutes from Kojima Interchange on the Seto-Chuo Expressway, and parking is free, with room for 36 cars and 5 buses.

Before you plan a trip, know about the seismic work. A long program of earthquake strengthening began at the Former Nozaki Family Residence in fiscal 2026 and is scheduled to finish in 2037. From 2026 to 2030 the Nagayamon and Onarimon gates are being taken down, their foundations on the stone base reinforced against liquefaction, and the gates put back together. Reception has moved to the main entrance, temporary hoardings about 2 meters high run through parts of the grounds, and the cliff side behind the buildings is closed. The rest of the estate remains open, but the museum warns that views will change considerably while the work goes on.

The official site does not state a photography policy, and rules may differ for special exhibitions, so ask at reception. With a reservation, you can also try traditional salt making with a museum curator; the session is free for elementary school age and up, on top of admission.