Research posture

The United Kingdom is already a certified-depth market with multiple ROC posts, war rooms, converted bunkers, and archived bunker auction rows. Continue only with source-repair or genuinely distinct public price and area pairs. May 18 twelve-hour Cycle 85 rechecked Wargrave Road Henley after search/browser evidence again exposed GBP 600k guide price plus about 22,000 sq ft of internal underground storage-bunker area, but transparent local page and brochure fetches still returned HTTP 404, so no manual CSV row was retained. May 18 twelve-hour Cycle 158 reconfirmed the same Wargrave blocker: search still exposes strong BWP facts, but both direct local fetches again return HTTP 404.

The bar a United Kingdom listing must clear:

Promote only UK rows where a public source states a specific transferable bunker, ROC post, war room, hardened underground facility, or converted bunker property with public guide/sold/asking price and internal underground or shelter area. Exclude portfolio-only rows without internal area, price-on-request/offers-invited rows, duplicate article mirrors, name-only bunker developments, tourism/accommodation pages, product vendors, and broader-property rows without a bunker-specific denominator.

What keeps candidates out

Our researchers reviewed 74 candidates for United Kingdom: 17 made it in, 40 were rejected, 17 are still being verified. Top rejection reasons:

Local Source Health 404 No Manual Import ×2Missing Underground Area ×2Name Only Bunker Reference ×2Source Unreachable Rejected ×2Archived Listing Missing Internal Area ×1Broader Property Price Missing Underground Area ×1

Diligence notes

▸ Archived auction article; current ownership not confirmed

▸ Listed building status and auction transfer terms require due diligence

▸ Historic disposal context and current ownership unknown

▸ Auction guide price and small ROC shelter title require buyer diligence

▸ Historic guide price and later marketing history require date caveat

▸ Northern Ireland row classified under United Kingdom after prior Ireland exclusion

▸ Former UKWMO ROC post auction result with explicit sold price and internal bunker dimensions

▸ Freehold auction lot had foot right-of-way access no services and viewing risk caveats requiring buyer diligence