I would say that the fact is 'saving' is singular and 'savings' is plural. This dictates the verb that follows. You could say A saving of $20 is ... or Savings of $20 are ...
A basement bathroom can be built for about $15,200, Fred estimates. Of that, plumbing is the largest component. These prices are based on costs for a small bath measuring about 6 by 8 feet, with 8-foot ceilings. However, many basements are limited to a 7-foot ceiling. Another potential cost-saving location for a new bathroom is the attic.
These figures assume no underfloor plumbing work and basic materials. Installing plumbing underneath concrete and/or choosing high-end materials will dramatically increase costs. 1  A relatively conservative estimate for installing a Â¾ or full bathroom in a basement is $8,000 to $12,000.2  Installing a Â½ bath in the basement might cost as little as $5,000.hese figures assume no underfloor plumbing work and basic materials. Installing plumbing underneath concrete and/or choosing high-end materials will dramatically increase costs. 1  A relatively conservative estimate for installing a Â¾ or full bathroom in a basement is $8,000 to $12,000.