Research posture

Continue searching. Japan remains zero certified because public evidence is mainly installed-product nuclear shelter supply, non-bunker temporary shelter products, shelter-house branding, surface-shelter owner marketing, or broader-property basement and air-raid-shelter components rather than completed bunker real-estate transfers. May 10 Cycle 63 added two live row-level property blockers with shelter-style or underground-shelter marketing language, but both remain broader dwelling transfers rather than shelter-only comps. May 10 Cycle 71 added Timeless Court Izu as a live resort-villa blocker with a stated 15 m2 basement shelter component but only broader-suite pricing. May 11 Cycle 2 added an Ieichiba Aomori surface-shelter blocker with a public JPY 800k price and about 10 m2 RC former telephone-facility building area, but it is above-ground owner-marketed shelter evidence rather than an underground or official civil-defense shelter comp. May 11 Cycle 15 added an Akishima Tamagawacho renovated RC building blocker with stated JPY 155m broader-building price, 449.89 m2 total area, and 86.90 m2 basement marketed as underground shelter and emergency stockroom space; it remains non-certified because the shelter value is bundled into the full mixed-use building sale. May 11 Cycle 28 added a distinct Ieichiba Natori Natorigaoka blocker with a public JPY 20m broader-property price and about 6 m2 underground room under a detached study, but it remains non-certified because the source only says the basement could be used as a shelter or music room and does not state hardening, shelter-only value, or separable transfer scope. May 11 12-hour Cycle 44 added Uki Tobase and Kyoto Saga Kankuji live row-level blockers where air-raid-shelter wording is bundled into broader old-house or land transactions without shelter-only area or value. May 11 12-hour Cycle 51 added a Smile Home Chiba Wakamatsu land blocker where the source notes an old air-raid-shelter trace near the north side but omits shelter area, condition, and separable value. May 11 12-hour Cycle 66 added a browser-visible Karatsu Juuninmachi LIFULL HOME'S Akiya Bank blocker where the adjacent owner-unknown air-raid shelter has an entrance on the site but use is not allowed; transparent source-health returns HTTP 403. May 11 12-hour Cycle 77 refreshed all 18 Japan rows and repeated Ieichiba, LIFULL, SUUMO, broker, akiya-bank, auction, and official-disposal searches; Karatsu, PHOENIX, and Shinjuku remain blocked, most other rows remain live with supported or partial blocker evidence, and no new certifiable price-area shelter transfer surfaced. May 11 12-hour Cycle 85 added the Okinawa Beach Higashi Kawata direct broker page as a live row-level land blocker with JPY 15m price, 4893 m2 land area, and a small air-raid-shelter trace, but it remains non-certified because no public shelter area, condition, title scope, or separable value is stated. May 12 8-hour Cycle 6 added the Tomoni Fudosan Tamano Hanezaki direct broker row with JPY 14.2m price, 904.85 m2 land, 129.17 m2 house area, and a photo labeled air-raid shelter; it remains non-certified because no public shelter area, condition, title scope, or separable value is stated. May 12 8-hour Cycle 19 refreshed all 20 Japan rows and found only duplicate Uki/Tamano mirrors, rental shelter-building branding, model-house/product evidence, and official-auction false positives rather than a shelter-only transfer. May 12 Cycle 29 added a direct Relight Yokohama Kosugaya land and building blocker with two remaining air-raid shelters on the slope, but no shelter area, condition, title scope, or separable value. May 12 Cycle 39 refreshed all 21 Japan rows and found only a Hachioji backfilled-underground-tunnel auction risk, a price-blank Awaji Jmty air-raid-shelter land post, and product or shelter-house branding repeats rather than a certified shelter-only transfer. May 12 Cycle 48 refreshed all 21 Japan rows and repeated direct broker, akiya, auction, rental, product, and shelter-house searches; no row gained public shelter-only price-area support. May 13 Cycle 8 added a live Keibai Koubai / NTA Kawasaki canceled public-auction blocker with public broader-land estimate values and a buried air-raid-shelter caveat, but it remains non-certified because the auction was canceled and no usable shelter area, access, condition, or separable value is public. May 13 Cycle 20 refreshed all 22 rows and found only Uki/Karatsu duplicate akiya-bank evidence, Awaji price-blank Jmty context, official-auction caveats, product rows, tunnel-risk rows, and broader-land evidence rather than a shelter-only transfer. May 13 Cycle 28 refreshed all 22 rows and found only Kyoto duplicate/stale mirrors, municipal underground-cavity risk or land-sale caveats, repeated Ota/Awaji rows, and shelter-house/product context. May 13 Cycle 36 refreshed all 22 rows again and checked a Kawasaki Kuhon official city-owned land sale near local air-raid-shelter hill commentary; the official sale states broader mountain-forest parcels and land prices but no transferable shelter asset, shelter area, or separable shelter value.

The bar a Japan listing must clear:

Promote only a Japan real-estate row with public transfer price, underground area, and source-health support. Product catalogs remain outside certified medians.

What keeps candidates out

Our researchers reviewed 218 candidates for Japan: 26 made it in, 165 were rejected, 27 are still being verified. Top rejection reasons:

No Japan Shelter Only Price Area Transfer ×19Broader House Shelter Style Storage No Shelter Transfer ×3Duplicate Broader House Underground Garage Possible Shelter No Separable Value ×3Duplicate Broader Land Air Raid Shelter Location Unknown ×3Duplicate Broader Land Air Raid Shelter Unknown Location ×3Generic Civil Defense Context ×3

Diligence notes

▸ Land sale with old house and underground room under parking; source says buyer must verify structure and strength

▸ Active sale store and residence with basement use language; buyer must verify whether the basement has any shelter hardening or legal use constraints

▸ Product-market source; indoor shelter and oxygen-capsule variant rather than real-estate listing

▸ Active leasehold house listing with old leasehold term and possible renewal fees so buyer should verify lease renewal basement condition shelter-style wording and any redevelopment limits

▸ Browser-visible basement-level condominium listing with shelter marketing language but local source-health returns HTTP 403 so buyer should verify whether any dedicated shelter exists beyond the basement maisonette and shared condominium rights

▸ Resort villa sale with post-sale management contract and basement shelter use; buyer should verify ownership form management obligations shelter build standard and whether the basement has any separate legal value

▸ Owner-marketed direct sale listing for a small RC former telephone-facility building; buyer should verify land title building registration structural suitability utilities and whether shelter wording is marketing language rather than legal civil-defense designation

▸ Renovated mixed-use RC building marketed by a design and real-estate group; buyer should verify current listing status title zoning basement shelter specification utilities permits and whether any shelter value is separable from the full building sale