The Detached Annex of the Former Ozawa Family Residence: an early-Showa house of two worlds
Just east of the towering main house on the Ozawa compound in Matsumoto's Hofukuji-machi stands the smallest and, in some ways, the most surprising of the four registered buildings. The annex, or hanare, dates to the early Showa period, the late 1920s to the 1940s, and it was built at a moment when a well-off rural household could pick and choose freely from Japanese and Western architecture. What it chose, and how it arranged those choices, is the reason it carries a different national listing from its neighbours.
The building is a compact two storeys, wood-framed, about 63 square metres in area, under a hipped-and-gabled irimoya roof of pantiles. A porch sits on the north face; a lean-to shelters the south. From outside it looks of a piece with the rest of the compound. Step inside and the ground floor tells a different story, and the storey above tells yet another.
Why it is listed as a model of design
When the annex went on the national register in October 2021, it was entered under a criterion the other three Ozawa buildings do not share. The main house and the two storehouses were listed for contributing to the historic landscape. The annex alone was registered as a model of design, the category reserved for buildings judged to be an exemplar of their kind. The distinction is worth pausing on, because it says the assessors valued this building not only for where it stands but for how it is made.
The ground floor is where the argument is won. The entrance hall and a Western-style room are finished with walls and coved ceilings in white plaster, with koage-tenjo ceilings that lift at the edges before turning up to the flat centre. The dado, the lower band of wall, is panelled in wood. Stained glass and decorative picture tiles are set into the rooms as ornament. This is the confident, slightly playful modern manner that spread through Japan between the wars, when imported detailing was absorbed into a thoroughly domestic plan. Then you climb the stairs, and the vocabulary flips completely: the upper floor is a run of connected tatami reception rooms, tsuzuki-zashiki, in the plainest and most traditional register. Both floors carry a generous ceiling height, and glazed sliding doors are used throughout, so light moves easily through the whole small building.
What to look for on a visit
Give yourself time with the ground-floor rooms. The pleasure here is in small things: the way the coved plaster softens a corner, the colour a panel of stained glass throws across a white wall on a bright afternoon, the pattern of a set of picture tiles. None of it shouts. The whole floor is a study in restraint, the work of builders who understood that a little imported ornament goes further when the room around it stays quiet.
Then notice the relationship between the annex and the main house it adjoins. The annex connects to the reception wing on the east side of the main house, so the two were meant to work together, formal Japanese rooms flowing into a more relaxed modern space. Read as a pair, they map the range of how a leading rural family lived and entertained in the early twentieth century. After the renovation begun in 2019, the annex and main house have been brought into use as a café and lodging, which is the likeliest way to experience these interiors first-hand. It remains a privately run property, so check current opening arrangements before travelling out to the Shiga district.
- 📍 Plan Your Visit to Nagano
- Find tours, activities & transport passes near Former Ozawa Family Residence
- [ Matsumoto Castle & Kamikochi Hiking Tours ]
Q&A
- Why is the annex listed differently from the rest of the compound?
- The main house and two storehouses were registered for contributing to the historic landscape. The annex was registered as a model of design, a category for buildings judged to be a fine example of their type, which reflects the quality of its interiors.
- What makes the interior notable?
- The ground floor mixes Western detailing into a Japanese house: white plaster coved ceilings, wood-panelled dados, stained glass and decorative picture tiles. The floor above is a suite of traditional connected tatami rooms.
- How old is the annex?
- It dates to the early Showa period, roughly the late 1920s to 1940s, making it later than the main house of 1913 and the Edo and Meiji storehouses. It was renovated around 2020.
- What is a koage-tenjo?
- A coved ceiling that rises at the edges with a curved or angled transition before reaching the flat central panel. It gives a room a sense of height and finish, and appears here in white plaster.
- Can I see inside?
- The annex and main house now operate as a café and lodging following the 2019 renovation, so interior access is possible. As a privately run property rather than a public museum, confirm hours and conditions in advance.
Basic Information
| Name | Detached Annex of the Former Ozawa Family Residence (旧小澤家住宅離れ) |
|---|---|
| Location | 246 Hofukuji-machi, Matsumoto, Nagano Prefecture |
| Designation | Registered Tangible Cultural Property (building); registration no. 20-0587 |
| Registered | 14 October 2021 (criterion: a model of design) |
| Date of construction | Early Showa period (approx. 1926–1945); renovated around 2020 |
| Count | 1 building |
| Structure | Wood, two storeys, tiled irimoya roof; floor area approx. 63 m² |
| Owner | Ozawa family company (privately owned) |
| Access | Operated as a café and lodging; confirm arrangements before visiting |
References
- National Database of Designated Cultural Properties, Agency for Cultural Affairs — Detached Annex of the Former Ozawa Family Residence
- https://kunishitei.bunka.go.jp/heritage/detail/101/00014000
- Matsumoto City — Former Ozawa Family Residence (four buildings)
- https://www.city.matsumoto.nagano.jp/soshiki/134/3796.html
- Matsumoto City — nationally registered cultural properties
- https://www.city.matsumoto.nagano.jp/soshiki/134/51915.html
Last verified: 2026.07.10