By Dom Nozzi
I believe that five stories generally makes sense as a maximum height for a smaller city such as Boulder CO. I wouldn’t be rigidly opposed to taller buildings, but I think taller buildings in Boulder should be extremely rare (and probably clad in brick or stone to reduce the jarring nature of a relatively tall building).
Besides the human scale that is lost when a building gets taller than five stories, there are other important concerns I have.
Speaking from experience (and particularly in a city such as Boulder where transit service is good but not great, as it is in many big cities), when a building has a lot of stories, it is very likely that there will be an enormous amount of financial, political, employee, and resident pressure to serve that building with massive surface parking lots, and monstrous (and monstrously expensive) parking garages (and underground parking).
There will, in other words, be huge expenses associated with storing the huge number of cars, and the taller building will therefore be drawing a rather large number of cars — which is generally not good for a relatively small city or a place that seeks to be walkable.
Relatively tall buildings can generally avoid this problem if served by very frequent bus or rail transit. In addition, that huge influx of cars can put a LOT of pressure on local and state government to add a lot of toxic, ruinous roadway capacity to the existing street system in order to serve that influx of cars — not at all good for a small city wanting to be walkable.
Another point I’ve made in the past about taller buildings is that it is probably true that a given city can only expect to support “X” number of jobs or housing or retail space. I think it is much preferable for a city that wishes to be walkable, vibrant and interesting to have, say, 50 buildings that are five stories tall than to have 25 buildings that are 10 stories tall.