What the land can hold
The realistic yield of a site, not the number its acreage suggests, with each constraint that takes land away shown step by step.
What it still needs
The approvals between today and a building permit, and how often requests like it have been granted.
How long it may take
How long review has taken for projects of the same kind in the same place, so carrying costs are priced in.
Every finding cites the page it came from. See it on a real site: what a 7-acre lot can really hold.