When people talk about exit strategy in hotel investment, the main axis has traditionally been the “rate of future population decline.” But the decline rate only shows how fast demand is shrinking; it does not tell you whether that location can be regenerated for a use other than lodging. This article quantifies not the decline rate but the age structure of the trade area (the aging rate) on the National Land Numerical Information 250m mesh, and — anchored on Atami and Takayama — reverse-engineers how the aging of the resident population affects room demand (i.e., visitor demand) and the conditions under which a holding exit (nursing care, service-oriented senior housing, residential conversion) becomes viable.

Executive Summary — Even Two Onsen Resorts Can Face Completely Different “Exits”

Let us state the conclusion first. Atami and Takayama share one trait: both are visitor-dependent onsen resorts whose trade areas are aging and whose office-worker ratio is a low ~11%. Yet their exit-strategy premises are almost opposite. In Atami, the aging rate within a 1.5km radius is an extreme 49.1% (roughly half of residents are 65 or older) and the source of demand leans entirely on outside visitors (tourism), while commercial land prices keep rising at +11.14% year on year (2025 published land prices). Takayama, by contrast, has a gentler aging rate of 38.8%, and inbound tourism — 4.42 million annual visitors and 770,000 foreign-guest overnight stays (2024, a record high) — provides thick support for its visitor demand.

Read on the two axes of “trade-area aging rate × visitor dependence,” Atami emerges as an area where visitor dependence is at its maximum and the exit options polarize between lodging and senior-care facilities, while Takayama is an area where visitor demand (especially inbound) is thick and continued ownership as a lodging asset remains rational. This article lines up the trade-area age structures of ten areas and reverse-engineers the conditions under which each holding exit (nursing care, service-oriented senior housing, residential conversion) becomes viable.

Ten-Area Comparison — The Trade-Area Aging Rate as “Another Map”

First, for the 1.5km trade areas of ten areas — mostly onsen and tourist resorts — we aggregated the share of residents aged 65+ (the aging rate) and the working-age share (15–64) from the National Land Numerical Information 250m mesh. Even among “tourist destinations,” the age structures diverge sharply.

Atami’s 49.1% aging rate stands out. At this level roughly one in two residents is 65 or older, exceeding even other leisure-focused areas such as Karuizawa (42.3%), Kusatsu Onsen (41.5%), and Shirahama (41.2%). Conversely, Kanazawa (29.8%), Naha (29.2%), and the Kyoto Station area (27.4%) — with their urban functions and thicker resident populations — have trade-area age structures close to the national average (29.4%). Takayama (38.8%) sits in between.

What matters here is that the higher the aging rate, the more structurally resident-originated lodging demand (accompanying returning family, local dining and banquets, business trips, and so on) thins out. In both areas the office-worker ratio is a low ~11%, so there is no depth of business demand either. Room occupancy therefore depends almost entirely on outside visitors — tourists. The trade-area aging rate functions as a proxy for the degree to which a demand structure has lost its domestic base and come to stand on a single visitor leg.

Plotting the aging rate against ADR reveals no clear correlation. Atami (aging 49.1%, ADR ¥61,700) and Hakone Town (aging 38.6%, ADR ¥82,900) both sit in the high-rate band, yet their trade-area age structures are entirely different. This shows that even for a high-rate resort, exit risk cannot be measured by land prices or occupancy alone — it must be assessed on the independent axis of the trade area’s age structure. A high ADR does not mean a safe exit.

Area Analysis — Atami: Land Prices Rise, but the Trade Area Is the Most Aged

Atami’s peculiarity is that, while its trade area is among the most aged in the country (49.1%), land prices keep climbing at double-digit rates. This is because lodging and condominium demand flows in strongly from outside, triggering competition for redevelopment sites. In practice, redevelopment of closed-ryokan sites is dominated by lodging and condominium uses: La Vista Atami (239 rooms) on the former Atami Grand Hotel site, a hotel project on the former Tamanoi Honkan site (a Sumitomo Realty affiliate), and a long-stay condominium project in Higashikaigan-cho (Nihon Escon, scheduled for completion in 2029), among others.

There is an important implication for exit strategy here. In Atami, the logic that “because the trade area is aging, convert to a nursing-care facility” is not necessarily the optimal answer. Because visitor demand is pushing land prices up, the continued value (and resale value) as lodging or condominiums is maintained at a high level. The trade-area aging rate signals that domestic demand has vanished, but in Atami visitor demand fully compensates for it. The exit centers on “continued lodging operation or high-rate housing (condominiums),” and conversion to nursing care or senior housing is limited to a subset of properties that have the locational conditions — proximity to the station, flat land, and a shuttle/access route. We dig into the structure of Atami’s lodging market itself (the ADR trajectory across 76 properties and 2,508 rooms) in our deep-dive analysis of Atami’s ryokan market.

Area Analysis — Takayama: Inbound Tourism Turns Visitor Dependence into “Healthy Depth”

Takayama’s trade-area aging rate is 38.8% — more than ten points below Atami’s — and its working-age ratio holds above half at 51.0%. What differs decisively is the composition of visitor demand. In 2024, total visitor arrivals reached 4.422 million (+8.6% year on year), of which foreign-guest overnight stays hit a record ~770,000. This recovery far exceeds the pre-COVID peak (about 610,000 in 2019), and the area’s visitor dependence has qualitatively shifted from “the flip side of vanished domestic demand” to “depth supported by inbound tourism as a growth demand.”

This difference splits the exit strategy. In Takayama, room demand is in an expansion phase led by foreign visitors, and continued ownership and value-add in the lodging use (renovating rooms for inbound guests, upgrading grade) remains the primary exit. The ADR of ¥47,400 is lower than Atami’s, but because it is backed by real, occupancy-bearing demand, the quality of that demand is arguably firmer. A mid-range trade-area aging rate (38.8%) also lowers the hurdle to continued operation, both in terms of room to secure local staff and the maintenance of surrounding daily-life functions. The economics of room-reducing rebrands extending across the wider circuit anchored on Takayama (Gero and Shirakawa-go) merit their own detailed analysis.

Reverse-Engineering the Holding Exit — Conditions for Nursing-Care, Senior-Housing, and Residential Conversion

So when continued lodging use becomes difficult in an aged trade area, how does the holding exit come together? For conversion to nursing-care facilities, service-oriented senior housing (サ高住), and residential (condominium) use, we reverse-engineer the conditions for viability across three lenses: demand, regulation, and physical constraints.

Let us organize this into three points. First, demand for nursing care and senior housing is not established by the “number of trade-area seniors” alone. The rate of long-term-care certification rises only from age 80 onward (26.2% at ages 80–84, 60.1% at 85+), so even with a high trade-area aging rate, occupancy will not fill without a location, medical-care linkage, and shuttle route capable of drawing residents from a wider area. Nationwide, service-oriented senior housing had accumulated to roughly 291,000 units (8,327 buildings) by the end of September 2025, and oversupply is already producing closures and withdrawals. A high aging rate indicates “the existence of demand” but does not guarantee “the viability of a business.”

Second, the physical cost of conversion constrains profitability. Onsen ryokan and resort hotels have rooms designed on the premise of banquets and views, so corridor widths, level differences, and bath specifications often do not align with care use. Barrier-free retrofitting, sprinklers, and mechanical bathing require commensurate investment, and once the per-tsubo retrofit cost approaches the construction cost of a newly built senior-housing facility, the economic advantage of conversion disappears. The mountainous Atami and Takayama, with their limited flat land, also face tough conditions for securing shuttle and emergency-access routes. This is the reverse of converting into a hotel, but the way to think about construction cost and use-category boundaries when converting aging non-residential assets into guest rooms is laid out in our analysis of the investment boundary for converting commercial and logistics facilities into hotels, a useful reference for getting a feel for conversion economics.

Third, in Atami, “so long as visitor demand supports land prices, the exit value of lodging or residential conversion exceeds that of care conversion.” When land prices rise at double-digit rates, sale or continuation as condominiums or lodging tends to be the most rational exit. Conversion to nursing care or senior housing comes to the fore only in areas where visitor demand thins out and land prices turn to decline — that is, when the double condition of “high trade-area aging rate × declining visitor dependence” is met. Atami and Takayama still have thick visitor demand and have not reached that stage.

Investment-Judgment Summary — The Exit Is Decided at the Intersection of “Age Structure × Visitor Demand”

This article’s argument is simple. Evaluating a hotel-investment exit by the projected population decline rate alone is too crude. For the same decline rate, which of continued lodging, residential conversion, or care conversion becomes viable changes greatly depending on the trade area’s age structure and the quality of visitor demand. Reading areas on the two axes of trade-area aging rate × visitor dependence lets us distinguish “the Atami type, where outside visitors sustain it even after domestic demand vanishes,” “the Takayama type, where growing inbound tourism creates depth,” and “the future type, where visitor demand thins too and conversion becomes the realistic answer.” As an axis that raises the resolution of exit strategy by one notch, quantifying age structure is effective.

For reference, Hoshino Resorts REIT Investment Corporation (星野リゾート・リート, 3287), which has a high resort weighting, posted portfolio-wide occupancy of 79.3%, ADR ¥21,600, and RevPAR ¥17,100 as of April 2026 (occupancy -2.0pt year on year). The operating performance of a listed resort REIT still maintains high occupancy, consistent with this article’s framing that resorts with thick visitor demand retain high exit value in their lodging use.