Step1: Utilizing minimum densities to calculate realistic capacity of sites Government…
Housing Element Sites Inventory Guidebook (AB 1397) · 2026 edition · updated 2026-09-22 · California
If the jurisdiction has adopted a law, policy, procedure, or other regulation that requires the development of a site to contain at least a certain minimum residential density, the jurisdiction can utilize that minimum density to determine the capacity of a site. For purposes of this analysis, the use of either gross or net acreage is acceptable but should be consistent with the standard the jurisdiction typically uses for determining allowable units for a residential development project. For example:
| Site Description | Value |
|---|---|
| Size of site (Gross acreage) | 3 acres |
| Zoning | Residential Multifamily |
| Allowable density | 20 (required minimum) – 30 dwelling units per acre |
| Realistic capacity utilizing minimum | 3 X 20= 60 units |
Please note, to meet this standard on a zone that allows for multiple uses, the general plan or zoning must require the specified minimum number of residential units on the identified sites regardless of overlay zones, zoning allowing nonresidential uses, or other factors potentially impacting the minimum density. Otherwise, the capacity of the site must be calculated using the factors outlined in Step 2.
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