I'd love to live downtown, and am actively trying to do so. But it's the worst decision I could possibly make in every measurable metric.
Living downtown triples my housing costs. Even if I downsize 50% of my current living space, moving downtown would still double my housing costs. Working downtown cuts my salary by ~15%, and I'd loose my good health insurance for some fake HSA. I'd love to raise my child downtown, but the school systems are significantly worse in every metric.
Yes, I could give up a car. That would save me about $350/month in total expenses. But to live downtown would cost me an extra $1000/month in housing costs, and cut my income by about $900/month (pay cut + benefits reduction + increased taxes). Loosing $1,900/month to save $350/month is insane.
And taking public transit, while slightly cheaper and healthier than driving, would increase my commute time by 2 hours every single workday. (How much is an hour of your time worth? How much is 40 hours per month of your time worth?)
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I'm still trying to live in an urban area -- it's been a goal of mine for my entire life. But it feels like all of society is working against me for trying to do this.
Our perverse incentives are setup in such a way that suburban sprawl is the most rational choice for non-subsidized individual households to make in the vast majority of the US, despite all of the problems associated with it.
Do this. Even if temporarily. I've lived in the suburbs all of my life (and currently still do). The year I spent in a real city gave me great perspective. I quite enjoyed some parts and hated other parts. If anything it made me really understand myself more (and appreciate the suburbs!)
You could send a child to a private school in the suburbs, but that's doesn't gain you anything over sending the kid to a private school closer to home. Plus, it costs an additional $6000+/year. That's tuition at my local Catholic high school; it's an average school, no better than the publics in the same area.
State budgets are abstract, and it's easy for school boards to ask for more money over time.
3+ BR apartments are fairly table stakes in central and Eastern Europe. It's still a culture shock to me to be unable to find one here in the US, and I've lived here since I was six!
They are frequently aimed at retirees downsizing from even larger free-standing homes. Or, wealthy buyers looking for an urban crash-pad, in addition to their mansion outside the city center.
edit - a quick search of Washington DC shows 14 units available with 3+ bedrooms and <$700,000. Of those, about half are in really rough neighborhoods, where no professional likely to move.
Heck, I don't much care of the suburbs, but being a software developer outside DC means the best job prospects are along the Dulles corridor (Tyson's Corner through Dulles Airport) or other suburban areas. So, like many others, I bought a house in the 'burbs, where the public schools are good, jobs are bountiful, and traffic makes me feel like kicking puppies.
Now that I'm here, I'm pretty ambivalent about it. I'd move downtown, but I'm not convinced the pay would be high enough to offset the increased cost of real-estate ($400k for a 3-bed row houe in the outer 'burbs, $700k+ for the same downtown).