Possibly the single largest debate in the field of affordable rental h
ousing concerns the use of tenant-based assistance versus project-base
d assistance. The accepted wisdom is that project-based assistance cos
ts anywhere from 50 to 100 percent more than tenant-based assistance.
This premium for project-based housing is based on a comparison of sub
sidy costs at the start of a project's life rather than on a compariso
n of the discounted present value of the costs over the long term. The
subsidy costs of samples of Section 8 new construction projects have
been compared to those of Section 8 certificates over a long period of
time. The results indicate that the cost premium associated with proj
ect-based assistance may be lower than conventionally believed, around
40 percent, and may get even lower if the cost comparison could exten
d to longer time periods and could control for the quality of the hous
ing units.