The FAQ on the Church's relocation site discusses parking too:
"Q: Will there be sufficient parking downtown?
A: Yes. Additionally, the parking commitment from the donor family was just renewed.
The donors continue to stand by their original gift to ensure approximately 275 spots across the
street from the church for All Souls exclusive use on Sundays, Saturdays and weekday evenings.
We also plan to have approximately 30 parking spots, on-site, mostly handicapped. For
comparison, we currently have a 165-spot parking lot. The donors will also reserve a portion of
the parking lot for use during the week days to handle smaller events and employee parking.
They may choose to lease out a portion of the remaining parking to help offset the cost of
purchasing and maintaining the parking facility. The weekday needs of the church would need to
be surveyed to determine adequate coverage. For large weekday memorial services and special
events, it may be necessary to enter into an agreement with other facilities/churches in the area
to provide the needed parking and make use of our shuttle buses to accommodate the
need. There are also approximately 70 free, on-street parking spots directly surrounding the
church block."
http://allsoulschurch.org/media/1988/taskforcefaqrevised331.pdf