Pulling from the fortress concept and the family of Anne Frank, who hid in an attic for two years, I am considering an idea of an urban fortress in the event of SHTF. My idea is based upon the construction of a multi-story commercial building, where the top floor is unmarked on the elevator and unknown and inaccessible to those who do not have a passcode. The idea is creating a large area that is totally overlooked because the construction is such that people cannot identify from the outside how many floors are within the building since there will only be windows around the lower level front entry.
The space must truly be sustainable also. Below are my thoughts regarding options for shelter, water, power, food, sanitation, and security. I look forward to your feedback on any flaws in my thinking.
Shelter
During the “happy path” days, the 10,000 square foot “office space” on the upper floor would be the headquarters for my family-based small business (with very attractive commute). In addition, it will also provide a heavily subsidized permanent “penthouse” residence for my wife and me. Though devoid of “curb appeal” of most homes, the center courtyard could become a very pleasant and secure living space. In time of duress, it could easily morph into an accessible bug out location for my extended family and close friends. It would include living space with kitchen, laundry, and private sleeping and bathroom facilities for between 10 to 30 people.