Looking at current code… Looks like your issue is similar to ours. (the offstreet parking.)
Again – I would talk to development services about options.
I don’t remember the exact details of your front yard – but recall you had a garage facing the street. How much side yard do you have between the side of the garage and the property line. (That’s the steet wall issue). And how deep is the driveway between the front of the garage and the sidewalk. Is it possible to put a car there, even if it’s a few inches short.
The law doesn’t say the tenant must park in the spot you provide… they can still park off the alley… but you have to *have* the spot to get the permit.