Therefore, the total prison starting value is roughly $45.000 (5 stacks of concrete, 5 stacks of bricks and 4 stacks of steel) And a tiny amount of building materials to lay your first foundation.If a new prison is started from the main menu, the prison will start with: (Depending on the selected options, it can have derelict buildings, water (puddles and lakes), and trees.) A new prison in Prison Architect starts on a mostly empty slab of land.