Well the increased tax base will help pay for expanded services. Yes there will be a lag time of a few years (if you had a real proactive city council you could be hiring as early as the following year each be property comes online with increased parcel tax revenue), but the schools should have some room to breathe as most of the people moving to these new high density downtown apartments will be empty nesters (freeing up current single family housing) and young mostly childless professionals.