No Net Loss Law
Housing Element Sites Inventory Guidebook (AB 1397) · 2026 edition · updated 2026-07-29 · California
In estimating realistic capacity on sites in the sites inventory, jurisdictions may want to consider No Net Loss Law. This law was amended by Chapter 367, Statutes of 2017 (Senate Bill 166), which requires sufficient adequate sites to be available at all times throughout the RHNA planning period to meet a jurisdiction’s remaining unmet housing needs for each income category. To comply with the No Net Loss Law, as jurisdictions make decisions regarding zoning and land use, or development occurs, jurisdictions must assess their ability to accommodate new housing in each income category on the remaining sites in their housing element site inventories. A jurisdiction must add additional sites to its inventory if land use decisions or development results in a shortfall of sufficient sites to accommodate its remaining housing need for each income category. In particular, a jurisdiction may be required to identify additional sites according to the No Net Loss Law if a jurisdiction rezones a site or if the jurisdiction approves a project at a different income level than shown in the sites inventory. Lower density means fewer units than the capacity assumed in the site inventory.
To ensure that sufficient capacity exists in the housing element to accommodate the RHNA throughout the planning period, it is recommended the jurisdiction create a buffer in the housing element inventory of at least 15 to 30 percent more capacity than required, especially for capacity to accommodate the lower income RHNA. Jurisdictions can also create a buffer by projecting site capacity at less than the maximum density to allow for some reductions in density at a project level. End no net loss law explanation.
Site Inventory Guidebook
Page 22
May 2020
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Ask AI about this code▸ Contents — Housing Element Sites Inventory Guidebook (AB 1397)
- SUBJECT: Housing Element Site Inventory Guidebook Government C…
- Housing Element Site Inventory Requirements
- SITE INVENTORY GUIDEBOOK FRAMEWORK
- PART A: IDENTIFICATION OF SITES
- PART B: SITES TO ACCOMMODATE LOW AND VERY LOW- INCOME RHNA
- PART C: CAPACITY ANALYSIS
- PART D: NONVACANT SITES
- PART E: DETERMINATION OF ADEQUATE SITES
- Step 1: Identification of Developable Sites Government Code se…
- Government Code section 65583.2(b)
- Step 3: Infrastructure Availability Government Code section 65…
- Step 4: Map of Sites
- Step 5: Determination of Consistency with Affirmatively Furthe…
- Government Code section 65583.2(c)
- HCD Best Practices for selecting sites to accommodate the lowe…
- Step 7: Environmental Constraints
- NEXT STEP:
- Step 1: NEW Sites Used in Previous Planning Periods Housing El…
- Unusual Circumstances
- Step 1B:
- Definition of Use By Right (Government Code section 65583.2 (i))
- Sample Program:
- Government Code section 65583.2(c)(3)
- Housing Overlays
- Step 3: Size of Sites
- Definition of a Large Site
- Specific Plans, Master Plan, and other Subdivisions
- NEXT STEP:
- Step1: Utilizing minimum densities to calculate realistic capa…
- Government Code section 65583.2(c)(2)
- - Applicable land use controls and site improvement requirements
- Form Based Codes
- Typical densities of existing or approved residential developm…
- No Net Loss Law
- NEXT STEP:
- Definition of a Vacant Site
- Step 1: Description of the nonvacant site Government Code Sect…
- Government Code section 65583.2(g)(1)
- Existing Uses:
- Development Trends:
- Market Conditions:
- Availability of Regulatory and/or other Incentives:
- Step 3: NEW Reliance on nonvacant sites to accommodate more th…
- Step 4: NEW Program and policy requiring replacement of existi…
- Program X: Replacement Unit Program
- Funding: General Funds
- NEXT STEP:
- Government Code section 65583.1
- Impact of New Accessory Dwelling Unit Laws
- Step 2: Determine whether there is sufficient capacity to acco…
- Step 3: Adequate Sites Program
- General Program Requirements
- Timing
- Consequences for Failing to Complete Rezoning Deadline:
- Housing Accountability Act and the Housing Element
- Annexation
- Common Program Questions and Answers for Shortfall Zoning:
- ATTACHMENT 1: SUMMARY OF NEW LAWS REFERENCED IN THE GUIDEBOOK
- ATTACHMENT 2: GOVERNMENT CODE SECTION 65583.2