Our area of work includes portions of the first and second floors of a university library in California. On the first floor, only bathrooms are included. On the second floor, the following space types are included: bathrooms, lobby, circulation, other visitor areas, and some staff-only area.
A few fixtures might be replaced. However, most will either not be touched or be slightly relocated to satisfy ADA requirements.
For the prerequisite, shall we include the existing fixtures in our area of work that are not replaced?
For the credit, which bathrooms do we include? Shall we only include second floor bathrooms that serve the lobby, circulation, visitor, and staff areas that are within our area of work?
Here's the catch: If you go this route, you are not eligible to pursue any points under the credit. Alternatively, if you want to pursue points under the credit, you must include all fixtures in the building that are used by your occupants/visitors, including existing, whether they're inside or outside of your project boundary. For some projects that may have been more recently renovated (or esp if your project is moving into a new building), this is not necessarily a bad thing. As long as the rates are lower than the baseline, you could potentially still have enough savings to meet the prereq and credit criteria for points. For other projects moving into older buildings or ones that have not been recently updated, projects may be forced to abandon the credit if the fixtures' flow rates are too high. Make sense?