When you're able to operate a place like that, your fixed costs (i.e. rent) are drastically lower and you are able to sell at lower prices because of it. With more housing, your employees don't need high wages to afford a basic apartment.
Issues like that, while perhaps sensible to someone, are barriers toward economic prosperity.
But a new oil change location? Approved, insured, permitted in 5 minutes. Construction done in 2 months.
We're really hellbent on making anything but the new highway to the new Wal-Mart and $60 Starbucks dinner (paid over time of course) for the kids on the way to soccer practice in the Jeep Wagoner illegal.
Housing is the biggest expenditure for people in America and many parts of the world. Housing is cheap is Japan so people can get by on much less.
That's not what its downstream from, that's restating the same thing in financial terms. What it's actually downstream from is that Japan is a fully urbanized society. The reason why Americans cannot implement this is because houses are their little homesteads and castles, Fukuyama used the term "suburban villager" for this attitude (also prevalent in Greece and Eastern Europe etc.)
If you operate a rental in any area outside of the core of the major cities, you are in the business of charging a huge monthly premium over a property value that is rapidly depreciating to zero. This is fundamentally different than the US.
That said, there are probably 0 employees and long hours involved.
It also doesn't have to be your primary source of income. If you can run it from a structure like this you could just operate a cocktail bar on the weekends. Even in the US I know of a small pizza place that offers takeout only on a few days each month and it's operated out of the owners mom's kitchen. Not sure how legal that is and turning that inti a sit-down place would certainly be an issue.