Default values is what AutoCASE is all about. But transparent, regionally-specific, and research-informed defaults. And all numbers can be over-ridden with better data if, or when, you have it.
The latest version of AutoCASE has cost estimates built in for the design features. We have a database of Low Impact Development (LID) or Green infrastructure (GI) features. We adjust these for risk and region (more details are here)
You can run AutoCASE with just a location, date, and project life:
Of course the results, with no design components, the results will be $0.
Adding, say a tree:
AutoCASE will estimate capital costs (and risk):
as well as operations and maintenance costs for the tree:
and it will analyze and write a report for you:
I counted six clicks after project and scenario creation to report generation.