What is a survival condo?

A survival condo is typically privately owned civilian shelter unit located inside a large pre-existing, or newly planned, fortified structure, typically a former military installation such as a Cold War era missile silo or hardened bunker. The most well-known example is the converted Atlas ICBM silo in Kansas, where individual owners purchase condominium units inside a massive reinforced underground complex engineered for high-level protection.

These facilities are generally developed by private operators who acquire decommissioned bunkers / missile silos and retrofit them into multi-unit shelters with shared infrastructure. Amenities can include centralized NBC filtration, power generation, water treatment, food storage, and recreational or medical spaces. Each owner buys a finished unit much like a conventional condo, but with the implicit benefit of large-scale protective infrastructure already in place.

The main problem and defensive failure feature with survival condos is the general public knowing its location.  Another key limitation is location, because many of these converted bunkers are situated in remote rural areas selected by the government for ICMB silo locations.  Consequently, their remoteness makes them far less practical for short-notice emergencies. Events such as a nuclear strike offer limited reaction time and reaching a rural shelter several hours away may be unrealistic. Additionally, during an emergency event there is a good likelihood that the survival condo complex will be taken over by locals prior to your arrival.  For that reason, survival condos can serve as long-term refuge or continuity-of-living facilities, but they are not always suitable as primary, rapid-response shelters for time-critical events.

Conclusion, the operational security and well-known location of survival condos render them practically useless in an emergency situation.  For about the same amount of money or less you can design / build a customized shelter in privacy offering the same protection.