- TestFit Knowledge Base
- Site Solver Typologies
- Higher Density
Low detail high density
Low detail high density lets you quickly estimate unit counts for your site.
![low v high mixed use](https://support.testfit.io/hs-fs/hubfs/low%20v%20high%20mixed%20use.jpg?width=688&height=228&name=low%20v%20high%20mixed%20use.jpg)
Calculating the number of units
Since there are no units being placed, unit count are calculated based on area and efficiency. The calculation is as follows:
Net multifamily area /Unit area average = Units
Net family area is the Gross Area X efficiency