We want to use it as a home base for at least 5 years, and we will travel quite a bit after FIRE.
There are 3 cities that score high on our criteria list, DC is 1 of them.
DC area has a lot to offer and we don't need to be in DC itself.
We visited DC a few times, love the diversity, culture, foods, museums, parks, good airport, etc.
Housing is quite expensive, our initial research shows that Rockville maybe a good choice, not exorbitantly expensive, low crime, etc.d
Any suggestion as far as neighborhood goes?
Or anything we need to about the drawbacks, etc?
Appreciate it much.
I grew up in NoVA, visit there semi-frequently.
I don't think there is any way that DC and most surrounding areas could be considered mustachian, with the exception that there are high paying jobs. In FIRE your nest egg will need to considerably larger for that location to work.
There are some nice perks to the DC area; museums for example. Also, I have not seen another US city yet that is growing as fast as the areas surrounding DC. For this reason, the area is generally clean, new, good infrastructure, all types of culture, etc...You can hunt for other perks that will be free. There are plenty of ways to spend money in the area, and so if you want to fully experience DC I think you should set aside extra savings to live a little on infrequent occasion. Not everyone would agree, but I think being able to make an occasional non-Mustachian purchase is a nice thing (e.g. go out to a nice restaurant, buy movie tickets which will be over-priced in the area, etc...). If you don't have this freedom then I don't think you can fully take advantage of city life.
The idea of using DC specifically as a hub for international travel I think is flawed, because a number of other cities could meet this purpose. If most of your travel is to Europe perhaps it makes a little more sense since DC is east coast.
Someone here commented that DC areas are overpriced and not on par with NYC/Boston. Maybe NYC as it is a world standard, but we are really getting into high snobbery here. DC has pretty good standards for food, and there are all sorts of options expensive or cheap. On the whole, DC is known for good food. It is not known as 'that place that isn't worth it compared to NYC'.
Someone here commented that the summers give months of terrible living due to heat/humidity; this is subjective and on the whole false. There are some dog days of summer in the area, definitely some days of 'death' heat, but it is not several months a year, and it is not as bad as other places in the US. On the flip side, the winters are mild and easy.
By far the worst thing about DC is the traffic, which is insane. Plan your life around rush hours and you should mostly be ok. This is easier in retirement. But of course there will be no fully escaping traffic.
The traffic issues become even worse when there is inclement weather.
Second to traffic is overcrowding, which is only increasing and will continue to get far worse.
Housing is very expensive. You can counter this by living on less. Your idea to live in a suburb like Rockwell is a possibility; just keep in mind that that will add distance/time to get to DC, which will increase your resistance to go there. It might not be surprising to be gunghoe at first to make the commute, but eventually tire of it. For this reason, you should probably choose a suburb that has interesting things going on in it immediately in the location. I don't know much about Rockville myself.