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Definition of a Large Site

Housing Element Sites Inventory Guidebook (AB 1397) · 2026 edition · updated 2026-07-29 · California

For purposes of this requirement, “site” means that portion of the parcel designated to accommodate lower income housing needs. For example, a parcel greater than 10 acres in size could have to be split zoned, have an overlay zone with identified boundaries, or be identified in a specific plan that provides for subdivision of the parcel. If the specified boundaries of the site identified to accommodate the RHNA for lower income is less than 10 acres in size, then the large site analysis would not be required. However, the analysis must describe how the development will work on the site, including opportunities and timing for specific-plan development, further subdivision, or other methods to facilitate the development of housing affordable to lower income households on the identified site within the planning period. End definition

To demonstrate the feasibility of development on this type of site, the analysis must include at least one of the following:

  • An analysis demonstrating that sites of equivalent size were successfully developed during the prior planning period with an equivalent number of lower income housing units as projected for the site.

  • Evidence that the site is adequate to accommodate lower income housing. Evidence may include developer interest, proposed specific-plan development, potential for subdivision, the jurisdiction’s role or track record in facilitating lot splits, or other information that can demonstrate to HCD the feasibility of the site for development. The housing element should include programs promoting, incentivizing, and supporting lot splits and/or large lot development.

  • A site may be presumed to be realistic for development to accommodate lower income housing need if, at the time of the adoption of the housing element, a development affordable to lower income households has been proposed and approved for development on the site.

Site Inventory Guidebook

Page 17

May 2020

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Contents — Housing Element Sites Inventory Guidebook (AB 1397)
Housing Element Sites Inventory Guidebook (AB 1397)
  1. SUBJECT: Housing Element Site Inventory Guidebook Government C…
  2. Housing Element Site Inventory Requirements
  3. SITE INVENTORY GUIDEBOOK FRAMEWORK
  4. PART A: IDENTIFICATION OF SITES
  5. PART B: SITES TO ACCOMMODATE LOW AND VERY LOW- INCOME RHNA
  6. PART C: CAPACITY ANALYSIS
  7. PART D: NONVACANT SITES
  8. PART E: DETERMINATION OF ADEQUATE SITES
  9. Step 1: Identification of Developable Sites Government Code se…
  10. Government Code section 65583.2(b)
  11. Step 3: Infrastructure Availability Government Code section 65…
  12. Step 4: Map of Sites
  13. Step 5: Determination of Consistency with Affirmatively Furthe…
  14. Government Code section 65583.2(c)
  15. HCD Best Practices for selecting sites to accommodate the lowe…
  16. Step 7: Environmental Constraints
  17. NEXT STEP:
  18. Step 1: NEW Sites Used in Previous Planning Periods Housing El…
  19. Unusual Circumstances
  20. Step 1B:
  21. Definition of Use By Right (Government Code section 65583.2 (i))
  22. Sample Program:
  23. Government Code section 65583.2(c)(3)
  24. Housing Overlays
  25. Step 3: Size of Sites
  26. Definition of a Large Site
  27. Specific Plans, Master Plan, and other Subdivisions
  28. NEXT STEP:
  29. Step1: Utilizing minimum densities to calculate realistic capa…
  30. Government Code section 65583.2(c)(2)
  31. - Applicable land use controls and site improvement requirements
  32. Form Based Codes
  33. Typical densities of existing or approved residential developm…
  34. No Net Loss Law
  35. NEXT STEP:
  36. Definition of a Vacant Site
  37. Step 1: Description of the nonvacant site Government Code Sect…
  38. Government Code section 65583.2(g)(1)
  39. Existing Uses:
  40. Development Trends:
  41. Market Conditions:
  42. Availability of Regulatory and/or other Incentives:
  43. Step 3: NEW Reliance on nonvacant sites to accommodate more th…
  44. Step 4: NEW Program and policy requiring replacement of existi…
  45. Program X: Replacement Unit Program
  46. Funding: General Funds
  47. NEXT STEP:
  48. Government Code section 65583.1
  49. Impact of New Accessory Dwelling Unit Laws
  50. Step 2: Determine whether there is sufficient capacity to acco…
  51. Step 3: Adequate Sites Program
  52. General Program Requirements
  53. Timing
  54. Consequences for Failing to Complete Rezoning Deadline:
  55. Housing Accountability Act and the Housing Element
  56. Annexation
  57. Common Program Questions and Answers for Shortfall Zoning:
  58. ATTACHMENT 1: SUMMARY OF NEW LAWS REFERENCED IN THE GUIDEBOOK
  59. ATTACHMENT 2: GOVERNMENT CODE SECTION 65583.2

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