Here is Michael Pyatok's recent presentation regarding workforce housing for Downtown Dallas. Unfortunately, there is very little in the way of deep analysis and recommendations and, unfortunately more "look at my projects!" While there are a number of creative solutions here, these are mostly the types of infill densities we should be looking at (and are currently) in other inner ring infill areas, not downtown.
Also, the types of affordable housing done in San Francisco, due to subsidy and land prices resembles more the market rate developments here in Dallas. Can we do quality affordable housing? I believe so, but we have to do better than the inclusionary component currently in downtown where on a per square foot basis the price point is the exact same as the market rate housing. Meaning that the affordable units (legal definition) are about 500 sq.ft. Hardly appropriate for families. These units ALWAYS seem to be vacant by the way. Go figure.
That, of course, is not to say that affordable and workforce housing as a component in downtown shouldn't be encouraged. I, for one, agree with Alex Krieger who said, "the folks populating the W hotel are not the ones that will create a vibrant street presence in downtown Dallas."