The Russian Hill estate of Robert Fisher — brother of Gap founder Donald Fisher and a man who helped build the retail empire from the ground up — just hit the market at a cool $17 million. The home was built in the '90s, which means it went up right around the time Gap was basically dressing the entire American middle class in denim and pocket tees.

Luxury buyers are reportedly already circling, because apparently $17 million for a single-family home in San Francisco is the kind of deal that gets people excited in this market. Let that sink in.

Now, we're not here to begrudge anyone their hard-earned real estate gains. The Fisher family built something massive — a global brand that employed tens of thousands of people. That's the kind of entrepreneurship we respect. You build, you earn, you buy a hilltop mansion with views that probably make the fog look like a personal amenity. Good for you.

But the listing does offer a nice little snapshot of San Francisco's two-tiered reality. While City Hall debates how to squeeze more tax revenue out of everyone to fund programs that never seem to produce results, the ultra-luxury market keeps humming along just fine. Russian Hill estates trade hands at eight figures while small businesses on the same hill shutter because permitting takes longer than a congressional term.

The real question isn't whether someone will pay $17 million for this place — someone will. The question is whether San Francisco can remain a city where you don't need Gap-founder money just to stay housed. Right now, the answer is looking increasingly like a hard no.

Maybe if City Hall spent less time regulating and more time getting out of the way, the rest of us could close the, well... gap.