My summer internship at SBRA was spent on a special research project:  to analyze SBRA projects' actual expenses to determine factors that effect professional costs on a project.   The goal was to identify criteria of a project that would inform them how to establish fees that would then result in a profit for the project.  

The factors that were considered were:

Building Type

Percentage of New / Percentage of Renovation

Program Area

Actual Area

Expected Construction Cost

Actual Construction Cost

and many others.

These factors were plotted against:

Budgeted Hours per phase ( Schematic Design, Design Development, Construction Documents, Bid, and Construction Administration)

Budgeted Total hours

Actual Hours per phase

Actual Total hours

Budget cost per phase

Actual Cost per phase

and many others.

The sample below is fictitious data, but represents a possible result from the correlations that were made.