The total amount assessed against any lot or parcel of land
shall not exceed the value of benefits received from the improvement.
Except as otherwise provided in the City Charter, and this chapter,
monies raised by special assessments to pay the cost of any local
improvement shall be held in a special fund to pay such cost or to
repay any monies borrowed therefor.
The funds in each special assessment account shall be used only
for the improvement project for which the assessment was levied except
as otherwise provided in the City Charter.
Any borrowing of money for the construction of improvements
enumerated in this chapter shall be reduced in the total sum prepaid
by affected property owners; provided, however, that owners prepaying
their share of any special assessment shall nevertheless remain liable
to pay interest attributable to their share of the special assessment
if prepayment is made after the sale of any bonds or the borrowing
of any monies for the construction of any improvement enumerated in
this chapter.