The title of this blog refers to two old cliches about Japanese housing that address size. The first refers to a common rejoinder to casual inquiries about somebody buying a piece of land, wherein the buyer would answer that the purchased plot “is only as big as a cat’s forehead,” meaning it’s tiny, when, of course, it’s never that small. However, recent news reports about sales of properties in Tokyo may cause new landowners to revive the saying with some justification.

As we’ve reported here numerous times in the past few years, condominium prices in Tokyo have soared beyond the reach of most average families, and yet Tokyo continues to be the only prefecture in Japan whose population is growing. An article last week in the Asahi Shimbun featured a woman in her 40s who said she recently bought a new house in Nerima Ward right after she got married. Before buying the house, she and her new husband had searched for a new condo within Tokyo’s 23 wards for about six months, but almost all the ones they liked were being offered through auction sales that started above ¥100 million. Obviously, she thought, they should have started looking more tha 5 years ago. In addition to the high price and the mortgage interest they would have to pay hefty monthly management and repair fees, so she gave up on the condo and instead bought a new house through a lottery system, beating out three other contenders for a building that was 20 percent cheaper than what her budget had been for a condo. 

The total floor area for the house is 85 square meters, which is quite small and one would assume, given the capacity rates in Tokyo, the size of the land is probably not much more than 60 square meters. The location is 18 minutes by foot to the nearest train station, which the woman, who works in central Tokyo, says is tolerable. More significantly, she says the mortgage terms are “not difficult” and fit her financial situation.

Asahi is covering the woman because new houses have become much more popular in Tokyo in the past several years owing to the scarcity of affordable new condominiums. The Real Estate Information Network (REINS) for East Japan reports that the sale of new and used houses in the Tokyo metropolitan area has increased for three years in a row, probably because while prices of new houses have also increased during that period, they have increased at a slower rate than that for condos. The average price of a new house in the metro area in 2025 increased by 4.6 percent compared to 2024, while the price of new condos increased by a whopping 20.3 percent, boosted mainly by investors. 

The appeal of houses over condos is probably obvious to most people, but size isn’t necessarily one of those appeals. The Real Estate Business Research Laboratory says that the average size of new condos in the Tokyo metro area has remained less than 70 square meters for the last decade, and continues to shrink. Developers have taken note. Sumitomo Real Estate’s City Garden brand allows buyers to design their own 100-square meter house in the Tokyo area, or about 30 square meters more than the average condo, and while prices are not much different than those for condos (¥80 to ¥150 million), sales have been good. Another builder/developer, Tokyo Tatemono, stopped building single-family homes some time ago but recently got back into the game and has a plan to build about 100 houses in the 23 wards in coming months.

The majority of these new houses are classified as kyosho jutaku, or “very small houses.” A number of architectural firms specialize in kyosho jutaku, which is defined as being designed for lots that are less than 60 square meters. The sales of such houses in Tokyo have increased over the past 5 years by 3.2 times. Because of special design needs, often these houses are more expensive per square meter than larger houses, but buyers know this and are splurging because often the only vacant lots they can find anywhere near the center of Tokyo are very small. The average price per tsubo (3.3 square meters) of land in Nerima Ward, for instance, is ¥1.76 million. 

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