So, you need to create a garden in an urban environment.
The only space available to you is a area than has planned construction, and you’ll need to move your plants as soon as they start.
Milkcrates make anything possible.
The New York restaurant Wichcraft, had this exact problem. Milkcrates to the rescue. It’s actually quite impressive. I know in New York, they often lock up their milkcrates – I wonder if they stole them in New Jersey? –>A portable Urban Farm, Made Entirely Out of Milk Crates via Fast Company