These three words get used interchangeably in English coverage of Japanese houses, but they describe different things. One is about occupancy, the others about style and location. Getting them straight matters, because it changes what you are buying, what it costs to keep, and which sellers and specialists you should be talking to. Here is the plain-English version.
What is the difference between akiya, kominka, and machiya?
Akiya means an empty or abandoned home, defined by the fact that nobody lives in it. Kominka means an old traditional-style house, usually a rural farmhouse, defined by its age and construction. Machiya means a traditional wooden townhouse, defined by its style and its urban setting. So akiya is about occupancy, while kominka and machiya are about the building itself.
The crucial insight is that these categories overlap. A house can be more than one at once. An empty rural farmhouse is both an akiya and a kominka. An empty traditional townhouse in Kyoto is both an akiya and a machiya. The words answer different questions, so a single house can carry two or three of these labels truthfully.
What is an akiya, precisely?
An akiya is a residential property that is currently vacant, an empty home. The term says nothing about the building's age, style, or condition; it only tells you nobody lives there. Akiya range from modern empty houses to derelict traditional farmhouses, which is why the label alone tells you little about what you are buying.
Because "akiya" is purely about occupancy, it is the widest of the three terms and the one most tied to Japan's vacant-housing story: millions of empty homes, municipal akiya banks, and the subsidies and tax rules built around getting them reoccupied. When people talk about "buying an akiya," they mean buying into that vacant-home market, whatever the building happens to be.
What is a kominka?
A kominka is an old, traditional-style Japanese house, typically a rural or farmhouse-style building, often with heavy timber framing, a large roof, and features like an earthen-floored entrance area. The word emphasises age and traditional construction rather than location or occupancy. Many kominka are prized for their craftsmanship and character.
For a buyer, a kominka signals both appeal and demands. The traditional timber construction is beautiful and often structurally impressive, but these houses tend to predate modern insulation and, frequently, the 1981 seismic code, so they can be cold and may need earthquake-strengthening. They are also a specialist market: dedicated kominka platforms and restoration experts exist precisely because renovating one well is a craft. If a house's charm is its age, its age is also its renovation brief.
What is a machiya?
A machiya is a traditional wooden townhouse, historically the home-and-shop of merchants and artisans in Japanese cities, most famously in Kyoto. It is defined by its style (narrow frontage, deep floor plan, wooden construction) and its urban setting. A machiya is essentially the townhouse cousin of the rural kominka.
Machiya carry their own considerations. Their narrow, deep urban plots and traditional construction make renovation specialised, and in historic districts there can be preservation rules affecting what you may change. They are strongly associated with Kyoto, where the traditional-townhouse market is well established. If you are drawn to a machiya, expect an urban, often conservation-sensitive project rather than a rural farmhouse one.
Why does the distinction matter for buyers?
Because the label changes your budget, your risks, and who you deal with. An akiya could be a simple modern house or a demanding traditional restoration; a kominka or machiya specifically signals traditional construction, likely pre-1981 seismic status, higher renovation craft, and a specialist market. Knowing which you are buying sets the right expectations from the start.
Two practical consequences follow. First, condition and cost: traditional houses (kominka and machiya) are more likely to need seismic and insulation work, so read what akiya renovation really costs with that in mind. Second, the market you are in: traditional-house specialists, including our partner network, exist for kominka and machiya, whereas the broad akiya market is where most vacant, mixed-age houses sit. Engawa focuses on the wide akiya market and does not try to compete head-on in the specialist traditional-house lane.
How we know this
Engawa's catalogue is built around akiya, vacant homes, and each listing carries the building's construction era and structure from official records, which is exactly the data that tells you whether a given akiya is also a traditional house likely to be a kominka or machiya. We describe houses in plain English rather than leaning on Japanese labels, and where a house's era or structure data is thin, we show an honest null with its source. We are candid that the specialist traditional-house market is not where we compete; our strength is honest, source-linked data across the broad akiya market.
Frequently asked questions
Is every kominka an akiya?
No. A kominka is defined by being an old traditional house, not by being empty, so a kominka that someone lives in is not an akiya. Only a vacant kominka is also an akiya. The two labels overlap but are not the same thing.
Are machiya only found in Kyoto?
They are most associated with Kyoto, where the traditional-townhouse tradition is strongest and best preserved, but the machiya form existed in other Japanese cities too. Kyoto is simply where the largest concentration and the most active specialist market are today.
Which is more expensive to renovate?
It depends on the individual house, but traditional houses (kominka and machiya) tend to need more specialist work than a plain modern akiya, given their age, construction, likely pre-1981 seismic status, and, for machiya, possible conservation rules. Survey the specific house rather than judging by the label alone.
Should I search for "akiya" or "kominka"?
If you want the widest set of affordable vacant homes, search akiya. If you specifically want a traditional farmhouse or townhouse to restore, search kominka or machiya, and expect a specialist market. Many buyers start broad with akiya and narrow once they know the style they want.
The honest bottom line
Akiya describes an empty house; kominka and machiya describe traditional rural and urban styles, and a single house can be both. Knowing which you are buying sets your budget, your renovation brief, and which specialists to involve, so get the words straight before you fall for a listing.
Explore the broad akiya market with era and structure data on each home, for example in Kyoto or Kagoshima, or ask the team if you are unsure what a specific house is. Flat fee, no commission.