Anonymous wrote:I hear this constantly asserted, as if it were self-evidently true, but cannot figure out how it could possibly be correct.
There's 700,000 people in the District. There's 5 million in the suburbs. If you add 30,000 housing units in DC, they will instantly be soaked up by people in the suburbs looking for shorter commutes.
As people move into DC from Falls Church and Rockville and Fairfax, their old places will open up for other people. Other people will move into those places from suburbs even further out, which will open up slots in places like Chantilly or Columbia or wherever else those people are coming from and that would put downward pressure on housing prices in the suburbs they've left.
But how does any of that lead to affordable housing in DC?
It leads to more affordable housing in DC because the trend you describe of people voting with their feet to move closer in for shorter commutes is already happening and it is largely responsible for the existing run up in housing prices. Not building more units in DC will just make the situation worse.
BTW lots of additional housing units in close in suburbs are also being built near transit and that is also a good thing as is the fact that with the Silver and Purple Lines are going to add another 30 miles of convenient high capacity transit that will also generate additional transit oriented development.
Also in some ways it is not a bad thing if you already own a house in DC if this trend of people moving closer in continues as it adds a lot of money to the tax base which is a big positive if you are a fellow tax payer.
The downside is we don't want a city that only the wealthy can afford so it really makes sense for DC (and close in suburbs) to do whatever they can to accommodate the demand for close in housing near transit.
Hopefully some of the progressives around here also care about the environment and want to act locally to do whatever they can about global warming.