Schedules for face to face talks is still easily doable. People do this now even if the person that they are going to talk to is on the other side of the world.
Also being able to walk across the street to the next door agency is also still doable as anyone working in DC will be doing just that...working next door to other agencies. And as you agree that we need agencies in close proximity to each other then what better way to do so than to get rid of all the personal homes/buisnesses that may be between two agencies?
Not if people were denied from moving into that area.
Why does an apartment manager even need to be hired? Can rooms not be set aside for the specific purpose of sleeping and maybe a couple for entertainment (ie tv/movies, pool, whatever) Its not like the congressmen have to live there 24/7/365. And even if you do hire someone to take care of those apartments why do they have to live there to do so? Can't they commute to thier job just like everyone else? Assuming of course that a congressmen would even need to stay in DC overnight.
As for food, Congress currently has a service that provides them with food. Cooks can be hired to work in kitchens to provide for food. Again, they can commute.
No need for a wal-mart. Supplies can be carted in just like regular buisnesses carts them into thier store. IE buy the needed supplies and store them in appropriate areas.
If anything needs built then the contractors can commute to the job site just like they do with any other job site.
If medical assistance is needed there can be a hospital staff available...they can commute just like other hospital's staff does.
See, thats the thing about the wonderful transporation methods we have available to us today. People can commute. DC after all only has 61 miles worth of landmass. You can drive across it in 1 hour easily. So at most people that regularly worked in DC would have to drive 2 hrs, just to get to work...only would take minuets to get to from one agency to another if everything was in close proximity. Hell, I live in an area where it is common to drive 3 hours to work every day (sometimes more depending on the work). Another advantage that commuters would have is that they would be able to get to work alot easier due to less traffic compared to what a city has.