Zoning › California › San Bernardino County › Fontana

Fontana, CA Zoning

Hybrid-zoning. 17 districts · 5 overlays · 7 applicable state preemptions.

Overview

Code type
hybrid
Naming convention
conventional

Fontana Chapter 30 is predominantly Euclidean (R-E, R-1 through R-5, R-PC, C-1, C-2, CO, M-1, M-2) with a distinct Downtown Form-Based Code Article III covering the Downtown Core Project Area (form-based districts completely replace underlying Euclidean base within mapped footprint). Also carries specialized residential overlays (Duplex §30-434.1, Senior Housing §30-436, local Density Bonus §30-437) and three Article IX overlays (Hillside HCR §30-630, Fire Hazard §30-656, Business Park & Warehousing §30-659). Naming is conventional: residential R-1/2/3/4/5 (lower number = lower density, larger lot); commercial C-1 (Community) / C-2 (General); mixed-use RMU/CMU; industrial M-1 (Light) / M-2 (Heavy) — number is a density/intensity suffix. Fontana is a general-law city (no adopted charter per League of CA Cities roster).

Worth knowing
  • Downtown Form-Based Code (Article III) supercession: Six FBC districts in Downtown Core Project Area completely replace underlying Euclidean base district standards; form-based framework (building type + frontage + sub-district) governs all development — unlike typical overlays that layer on base. Density up to 50+ du/ac, mixed-use FAR 0.1–1.0, reduced parking, walkable urban form required.
  • Duplex Owner-Occupancy Tier System (§30-434.1): Fontana's local duplex overlay requires owner-occupancy UNLESS lot was created by SB 9 urban lot split. Creates a two-tier system — Tier 1 (Fontana-code duplex, owner-occupied) vs. Tier 2 (SB 9-pathway duplex, no owner-occupancy). Applicants must distinguish pathways.
  • Dual Density Bonus Stacking Ambiguity: Local DBR (§30-437, 30% increase) operates in parallel with CA State Density Bonus Law (§65915, up to 80% + AB 1287 stacking to 100%). Interaction/precedence rules are not explicitly documented in accessible sources — whether local and state bonuses can be stacked for combined 110%+ requires planning department confirmation.

+ 7 more in Quirks & notes

Districts

res_mf 6res_sf 3com 2mu 2ind 2res_th 1off 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-EResidential Estateres_sf21,780 sf[4]35 ft[5]0.45[6]—[7]2[8]2[9]30[1] / 15[2] / 30[3]
R-1Single Family Residential — Low Densityres_sf6,000 sf[13]35 ft[14]0.45[15]—[16]5[17]2[18]22[10] / 5[11] / 20[12]
R-2Residential — Medium Densityres_mf3,000 sf[22]35 ft[23]0.5[24]0.9[25]12[26]1.5[27]18[19] / 5[20] / 15[21]
R-3Residential — Multi-Family Lowres_mf217,800 sf[31]55 ft[32]0.5[33]1.1[34]24[35]1.5[36]25[28] / 5[29] / 20[30]
R-4Residential — Multi-Family Med/High Densityres_mf87,120 sf[40]55 ft[41]0.7[42]1.4[43]39[44]1.5[45]5[37] / 10[38] / 15[39]
R-5Residential — Multi-Family High Densityres_mf87,120 sf[49]55 ft[50]0.7[51]1.75[52]50[53]1.5[54]5[46] / 10[47] / 15[48]
R-PCResidential Planned Communityres_sf10,000 sf[58]35 ft[59]0.45[60]—[61]3[62]2[63]25[55] / 5[56] / 20[57]
DUPDuplex / Two-Unit Development Overlayres_th4,000 sf[67]22 ft[68]—[69]—[70]5.4[71]1[72]20[64] / 4[65] / 4[66]
SHRSenior Housing Residentialres_mf87,120 sf[76]55 ft[77]0.6[78]1.4[79]39[80]0.75[81]15[73] / 10[74] / 15[75]
DBRDensity Bonus Residential (local)res_mf—[85]—[86]—[87]—[88]—[89]—[90]—[82] / —[83] / —[84]
C-1Community Commercialcom5,000 sf[94]45 ft[95]0.75[96]1.25[97]—[98]—[99]15[91] / 10[92] / 10[93]
C-2General / Highway Commercialcom15,000 sf[103]55 ft[104]0.8[105]1.75[106]—[107]—[108]15[100] / 10[101] / 10[102]
RMUResidential Mixed-Usemu10,000 sf[112]55 ft[113]0.7[114]1.5[115]30[116]1[117]0[109] / 10[110] / 15[111]
CMUCommercial Mixed-Usemu15,000 sf[121]65 ft[122]0.85[123]2[124]35[125]1[126]0[118] / 10[119] / 15[120]
COCommercial Officeoff20,000 sf[130]55 ft[131]0.6[132]1.5[133]—[134]—[135]25[127] / 15[128] / 15[129]
M-1Industrial — Light / Serviceind25,000 sf[139]55 ft[140]0.7[141]—[142]—[143]—[144]20[136] / 15[137] / 15[138]
M-2Industrial — Heavy / Generalind40,000 sf[148]65 ft[149]0.75[150]—[151]—[152]—[153]25[145] / 20[146] / 20[147]

Confidence: confirmed partial under review not found

Overlays

DT-FBC
Downtown Form-Based Code (Article III)
DT
Chapter 30 Article III — Downtown Core Form-Based Code · Fontana Municipal Code Chapter 30 Article III (Downtown Form-Based Code); Downtown Core Project Area adoption documents (2022–2023)

Downtown Core Project Area as mapped; six (6) FBC districts with building-type standards (Duplex, Multi-Plex, Row House, Single-Family Home, Live/Work, Court, Hybrid, Flex Building, Liner Building)

min_du_ac50[154]
max_far_commercial1[155]
max_far_mixed_use1[156]
height_ft_range40–75 feet[157]
parking_reduction_pct50[158]
frontage_standardsbuild-to-line + ground-floor activation[159]
HCR
Hillside Construction Regulations (HCR)
HS
§30-630 (regulations); §30-633 (development standards and design guidelines) · Fontana Municipal Code §30-630 (Hillside Construction Regulations); §30-633 (development standards and design guidelines)

Mapped hillside terrain; slopes ≥25% in northern Fontana foothills (Jurupa Mountains / San Gabriel foothills interface)

max_height_ft25[160]
min_slope_trigger_pct25[161]
fire_break_requirement1[162]
geotechnical_review_required1[163]
design_integration_required1[164]
FHS
Fire Hazard Severity Overlay
ENV
§30-656 (regulations); §30-658 (development standards) · Fontana Municipal Code §30-656 (Fire Hazard Overlay regulations); §30-658 (development standards and design guidelines); CAL FIRE FHSZ viewer (LRA)

CAL FIRE Fire Hazard Severity Zones (High and Very High hazard areas) as designated and mapped by City; Fontana hillside foothills carry VHFHSZ designation

defensible_space_ft30–100 feet[165]
fire_break_requirement1[166]
vegetation_management_required1[167]
fire_resistant_materials_required1[168]
max_height_interaction_ft25[169]
BPW
Business Park & Warehousing Distribution Overlay — Valley Boulevard
SPD
§30-659 (Business Park & Warehousing Distribution Overlay) · Fontana Municipal Code §30-659 (Business Park & Warehousing Distribution Overlay)

Valley Boulevard corridor and adjacent industrial lands as mapped — strategic industrial/logistics corridor

uses_encourageddistribution, logistics, light manufacturing, business support services, mixed industrial-commercial[170]
coordinated_site_planning1[171]
max_height_ft35–55 feet[172]
parking_modifications1[173]
AIZ
Airport Influence Zone (Civilian Part 77 + AELUP)
AP
San Bernardino County ALUC; Fontana Chapter 30 compliance; FAA Part 77 · San Bernardino County Airport Land Use Plan (ALUP); 14 CFR Part 77; FAA Obstruction Evaluation / Airport Airspace Analysis

Properties within Part 77 surfaces of surrounding civilian airports: Ontario International (ONT, west ~8 mi), San Bernardino International (SBD, east ~10 mi, former Norton AFB — now civilian), Cable Airport (Upland, SW ~6 mi), Rialto Municipal (closed — former Miro Field)

height_ft_part77varies — parcel-specific
noise_zones_dnlper AELUP
federal_part_77_layer1
aicuz_applies0

State preemptions

CA-ADU-GC§66411.7-66411.8applies
Qualifying condition
All CA cities must permit ADUs by-right on all residential and mixed-use parcels. Fontana implements via Chapter 30 ADU provisions updated for AB 68/SB 897 compliance. ADUs permitted on SF lots (R-E, R-1, R-PC) and MF lots (R-2 through R-5, SHR). Downtown Form-Based Code districts (Article III) with residential use component also permit ADUs. Industrial-only districts (M-1, M-2) do not have base residential density so ADU by-right does not attach. Fontana's northern hillside VHFHSZ parcels may trigger statutory fire-hazard exceptions (§66411.7), but CAL FIRE-mandated compliance still permits ADUs subject to fire-hardening standards.
CA-SB9-GC§65852.21-66411.7applies
Qualifying condition
Fontana is a CA general-law city (not charter — Fontana has not adopted a charter per League of CA Cities roster; incorporated 1952 as general-law). SB 9 applies per-parcel conditional on exclusions. Fontana contains: FEMA SFHA along Etiwanda Creek, Day Creek, and Declez Channel corridors (excludes specific parcels); CalFire VHFHSZ overlay in northern hillside foothills (Summit Ave / Duncan Canyon area — SB 9 excludes VHFHSZ parcels per GC §65852.21(a)(2)); no coastal zone (inland Inland Empire); no federally designated historic district at city-wide scale (some local landmarks may be listed). Most of Fontana's R-1 / R-E / R-PC footprint is SB 9-eligible, with per-parcel exclusions concentrated in the northern hillside VHFHSZ and riparian SFHA corridors.
CA-DensityBonus-GC§65915applies
Qualifying condition
Fontana's R-2, R-3, R-4, R-5, SHR multifamily districts and RMU/CMU mixed-use districts are subject to state density bonus. Residential projects meeting affordability thresholds qualify for 20%–80% density bonuses plus parking reductions and concessions/waivers. AB 1287 (2023) stacking up to 100% bonus applies. Density bonus cannot be denied where thresholds are met. Downtown Form-Based Code districts (Article III) with residential component also qualify (subject to form-based sub-district base density). Fontana's local Density Bonus Residential (DBR, §30-437) allowing 30% increase is a separate local tool; interaction/stacking with state §65915 is not explicitly documented — both may potentially stack but requires planning department clarification.
CA-AB2097-GC§65863.2applies
Qualifying condition
Fontana has a qualifying major transit stop: Fontana Metrolink Station at 16777 Orange Way (San Bernardino Line). The San Bernardino Line provides regular commuter rail service to Los Angeles Union Station with multiple daily trains in each direction during peak service, qualifying as a major transit stop under PRC §21064.3 (commuter rail station). Omnitrans high-frequency (15-min peak) bus service on Sierra Ave, Foothill Blvd, and Valley Blvd provides additional AB 2097 intersection-based qualifying stops. The ½-mile AB 2097 buffer around Fontana Metrolink covers much of central Fontana including the Downtown Form-Based Code footprint and adjacent RMU/CMU mixed-use parcels. Per-parcel mapping required for edge cases.
CA-SB423-GC§65913.4applies
Qualifying condition
SB 423 tier (exempt / 10% / 50%) is set by CA HCD based on jurisdiction's RHNA progress in Annual Progress Reports (APRs). Fontana's 6th-cycle RHNA (SCAG region, 2021–2029) allocation is 17,518 units per SCAG Final Allocation Plan (substantially similar to Anaheim's allocation, reflecting Fontana's housing-needs assessment as a growing Inland Empire city). SCAG's 6th-cycle runs 2021-10-15 through 2029-10-15. HCD SB 35/423 Determination dataset identifies tier per-city and is updated annually from APRs. HCD tier determination JS-rendered dashboard retrieval blocked on this pass; cannot confirm current tier without direct HCD query. Fontana's Housing Element for 6th cycle was adopted and received HCD compliance review — tier likely 10% based on public reporting, pending APR verification.
Retrieval issue
HCD SB 35/423 Determination dashboard (https://www.hcd.ca.gov/planning-and-community-development/statewide-housing-plan-and-rhna/sb-35-determinations) is JS-rendered and not accessible via scripted fetch within this specialist pass. Live browser query required for current tier determination.
CA-AB2011-GC§65912.100applies
Qualifying condition
Fontana has substantial commercial corridors qualifying under AB 2011 including: Sierra Ave (N-S spine), Foothill Blvd (Route 66 historic corridor), Valley Blvd (industrial-to-commercial transition), Arrow Blvd, Cherry Ave, Etiwanda Ave, Citrus Ave, Baseline Ave. All contain commercial zoning (C-1/C-2/CO/RMU/CMU) fronting significant ROW widths (>70 ft). 100% affordable projects qualify on any commercial parcel; mixed-income projects qualify on corridor parcels meeting AB 2011 corridor criteria. Business Park & Warehousing Overlay (§30-659) parcels on Valley Blvd are industrial (M-1/M-2) — AB 2011 eligibility depends on whether underlying base zoning is treated as commercial; per the statute, AB 2011 applies to sites where residential would be incompatible with zoning — industrial parcels may be eligible via different pathway.
CA-BuildersRemedy-GC§65589.5(d)(5)applies
Qualifying condition
Builder's Remedy activates when city Housing Element is NOT certified by HCD. Fontana's 6th-cycle Housing Element was adopted by City Council; HCD certification status requires query of HCD Housing Element Compliance Report (weekly-updated). Dashboard is JS-rendered and retrieval blocked this pass. As of prior public reporting, Fontana's Housing Element received HCD review with SCAG region-wide compliance tracking. Per AB 1893 (2024), additional procedural requirements apply and the Builder's Remedy pathway was tightened (project cap of 20% affordable required for standard BR; 100%/low-income projects retain full BR).
Retrieval issue
HCD Housing Element Compliance Report (https://www.hcd.ca.gov/planning-and-community-development/housing-open-data-tools/housing-element-implementation-and-apr-dashboard) is JS-rendered. Live query required for current compliance status.
Non-applicable laws (1)
CA-SB10-GC§65913.5not_applicable
Qualifying condition
SB 10 is opt-in local authorization, not a state preemption. Fontana has not adopted an SB 10 resolution per review of recent City Council ordinances/resolutions. Recent Fontana rezones (Downtown Form-Based Code adoption, specialized overlay expansions) proceeded under the standard rezone process, not SB 10. No SB 10 resolution on file.

Adopted building codes

Statewide mandatory minimum

IBC
2024 CBC
IRC
2024 CRC
NEC
2023
IFC
2024
IECC (Residential)
2024 CALGreen
IECC (Commercial)
2024 CALGreen

Click a code label to open its state-by-state adoption atlas.

Quirks & notes

  • Downtown Form-Based Code (Article III) supercession: Six FBC districts in Downtown Core Project Area completely replace underlying Euclidean base district standards; form-based framework (building type + frontage + sub-district) governs all development — unlike typical overlays that layer on base. Density up to 50+ du/ac, mixed-use FAR 0.1–1.0, reduced parking, walkable urban form required.
  • Duplex Owner-Occupancy Tier System (§30-434.1): Fontana's local duplex overlay requires owner-occupancy UNLESS lot was created by SB 9 urban lot split. Creates a two-tier system — Tier 1 (Fontana-code duplex, owner-occupied) vs. Tier 2 (SB 9-pathway duplex, no owner-occupancy). Applicants must distinguish pathways.
  • Dual Density Bonus Stacking Ambiguity: Local DBR (§30-437, 30% increase) operates in parallel with CA State Density Bonus Law (§65915, up to 80% + AB 1287 stacking to 100%). Interaction/precedence rules are not explicitly documented in accessible sources — whether local and state bonuses can be stacked for combined 110%+ requires planning department confirmation.
  • Fire Hazard / Hillside Combined 25 ft Height Ceiling: HCR §30-630 imposes 25 ft structure maximum in hillside areas. Fire Hazard Overlay §30-656 applies in VHFHSZ parcels. Where both overlays intersect (northern Fontana foothills), combined 25 ft ceiling is significantly more restrictive than base district (R-1/R-E 35 ft) or industrial (M-1 55 ft) — can render some uses infeasible.
  • Business Park & Warehousing Overlay (§30-659, Valley Blvd) is a USE-PROMOTION overlay, not restriction: Encourages logistics/distribution clustering with coordinated site planning. Functionally additive/enabling — expands use permissions vs. base M-1/M-2. Strategic tool for Inland Empire freight-rail/highway-truck logistics cluster.
  • Two-Acre and Five-Acre Minimums for High-Density Residential: R-4/R-5 require 2-acre minimum lot; R-3 requires 5-acre minimum (!). This significantly restricts applicability for infill projects — small parcels must assemble or pursue duplex overlay / state density bonus pathways. Creates paradox where high density is harder to achieve on small lots.
  • Fontana is a general-law city (not charter): Incorporated 1952 as general-law; SB 9 and SB 423 procedural rules apply without charter-city-specific analysis. Contrast to Anaheim (charter 1870) which has some charter-specific considerations.
  • Fontana Metrolink (San Bernardino Line) is the AB 2097 transit anchor: 16777 Orange Way; ½-mi buffer covers Downtown FBC and adjacent RMU/CMU parcels; eliminates parking mandates on multifamily projects within the buffer.
  • Commercial and industrial parking ratios reference Article XI but specific ratios not fully extracted from accessible Municode source on this pass — flagged as partial pending full ordinance retrieval.
  • SB 9 per-parcel exclusions concentrate in northern hillside VHFHSZ (foothills) and riparian SFHA corridors (Etiwanda Creek, Day Creek, Declez Channel) — most of central/south Fontana R-1/R-E/R-PC is SB 9-eligible without exclusions.

Formulas

Definitions

height
Measured from finished grade to highest point of roof; fire hazard severity zones impose 25 ft ceiling in HCR/FHS overlay parcels
lot_coverage
Building footprint / lot area
far
Gross floor area / net lot area; separate residential FAR may apply in mixed-use and form-based contexts
du_ac
Dwelling units / net acre
setback_front
Distance from front property line to building facade
setback_side
Distance from side property line to building facade
setback_rear
Distance from rear property line to building facade

Capacity calculations

parking_mf
lot_area_sf * parking_ratio / dwelling_units (subject to AB 2097 elimination within ½ mi of Fontana Metrolink)
max_units_high_density
lot_area_sf / (43560 / du_ac_limit); 2-acre minimum applies to R-4/R-5
duplex_tier_1_owner_occupied
Per §30-434.1 — owner-occupancy required unless lot created by SB 9 urban lot split; unit sizes 500–800 sf

Massing explorer

Interactive 3D comparison across every district. Drag to orbit, scroll to zoom, use the slider to walk districts, and toggle applicable overlays in the right-side panel.

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Floor area ratio
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Lot coverage
—%
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Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
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District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Primary source
Fontana Municipal Code Chapter 30 — Zoning and Development Code
Current Municode supplement as of research date; Chapter 30 carries Article III Downtown Form-Based Code (recently adopted 2022–2023), Article IX overlay districts (Hillside §30-630, Fire Hazard §30-656, Business Park & Warehousing §30-659), and specialized residential articles §30-434 (base), §30-434.1 (Duplex/Two-Unit), §30-436 (Senior Housing), §30-437 (local Density Bonus). · retrieved 2026-04-19
Citations
  1. [1] §30-434
  2. [2] §30-434
  3. [3] §30-434
  4. [4] §30-434
  5. [5] §30-434
  6. [6] §30-434
  7. [7] §30-434
  8. [8] §30-434
  9. [9] §30-Art.XI
  10. [10] §30-434
  11. [11] §30-434
  12. [12] §30-434
  13. [13] §30-434
  14. [14] §30-434
  15. [15] §30-434
  16. [16] §30-434
  17. [17] §30-434
  18. [18] §30-Art.XI
  19. [19] §30-434
  20. [20] §30-434
  21. [21] §30-434
  22. [22] §30-434
  23. [23] §30-434
  24. [24] §30-434
  25. [25] i§30-434
  26. [26] §30-434
  27. [27] §30-Art.XI
  28. [28] §30-434
  29. [29] §30-434
  30. [30] §30-434
  31. [31] §30-434
  32. [32] §30-434
  33. [33] §30-434
  34. [34] i§30-434
  35. [35] §30-434
  36. [36] §30-Art.XI
  37. [37] §30-434
  38. [38] §30-434
  39. [39] §30-434
  40. [40] §30-434
  41. [41] §30-434
  42. [42] §30-434
  43. [43] i§30-434
  44. [44] §30-434
  45. [45] §30-Art.XI
  46. [46] §30-434
  47. [47] §30-434
  48. [48] §30-434
  49. [49] §30-434
  50. [50] §30-434
  51. [51] §30-434
  52. [52] i§30-434
  53. [53] §30-434
  54. [54] §30-Art.XI
  55. [55] §30-434
  56. [56] §30-434
  57. [57] §30-434
  58. [58] §30-434
  59. [59] §30-434
  60. [60] §30-434
  61. [61] §30-434
  62. [62] §30-434
  63. [63] §30-Art.XI
  64. [64] §30-434.1
  65. [65] §30-434.1
  66. [66] §30-434.1
  67. [67] §30-434.1
  68. [68] §30-434.1
  69. [69] §30-434.1
  70. [70] §30-434.1
  71. [71] i§30-434.1
  72. [72] §30-434.1
  73. [73] §30-436
  74. [74] §30-436
  75. [75] §30-436
  76. [76] §30-436
  77. [77] §30-436
  78. [78] §30-436
  79. [79] i§30-436
  80. [80] §30-436
  81. [81] §30-436
  82. [82] §30-437
  83. [83] §30-437
  84. [84] §30-437
  85. [85] §30-437
  86. [86] §30-437
  87. [87] §30-437
  88. [88] §30-437
  89. [89] §30-437
  90. [90] §30-437
  91. [91] §30-479
  92. [92] §30-479
  93. [93] §30-479
  94. [94] §30-479
  95. [95] §30-479
  96. [96] i§30-479
  97. [97] i§30-479
  98. [98] §30-479
  99. [99] §30-Art.XI
  100. [100] §30-479
  101. [101] §30-479
  102. [102] §30-479
  103. [103] §30-479
  104. [104] §30-479
  105. [105] i§30-479
  106. [106] i§30-479
  107. [107] §30-479
  108. [108] §30-Art.XI
  109. [109] §30-479
  110. [110] §30-479
  111. [111] §30-479
  112. [112] §30-479
  113. [113] §30-479
  114. [114] i§30-479
  115. [115] §30-479
  116. [116] i§30-479
  117. [117] i§30-Art.XI
  118. [118] §30-479
  119. [119] §30-479
  120. [120] §30-479
  121. [121] §30-479
  122. [122] §30-479
  123. [123] i§30-479
  124. [124] i§30-479
  125. [125] i§30-479
  126. [126] i§30-Art.XI
  127. [127] §30-479
  128. [128] §30-479
  129. [129] §30-479
  130. [130] §30-479
  131. [131] §30-479
  132. [132] i§30-479
  133. [133] i§30-479
  134. [134] §30-479
  135. [135] §30-Art.XI
  136. [136] §30-520
  137. [137] §30-520
  138. [138] §30-520
  139. [139] §30-520
  140. [140] §30-520
  141. [141] i§30-520
  142. [142] §30-520
  143. [143] §30-520
  144. [144] §30-Art.XI
  145. [145] §30-520
  146. [146] §30-520
  147. [147] §30-520
  148. [148] §30-520
  149. [149] §30-520
  150. [150] i§30-520
  151. [151] §30-520
  152. [152] §30-520
  153. [153] §30-Art.XI
  154. [154] §30-Art.III
  155. [155] §30-Art.III
  156. [156] §30-Art.III
  157. [157] §30-Art.III
  158. [158] §30-Art.III
  159. [159] §30-Art.III
  160. [160] §30-630
  161. [161] §30-630
  162. [162] §30-633
  163. [163] §30-633
  164. [164] §30-633
  165. [165] §30-658
  166. [166] §30-658
  167. [167] §30-658
  168. [168] §30-658
  169. [169] §30-656
  170. [170] §30-659
  171. [171] §30-659
  172. [172] §30-659
  173. [173] §30-659

Research status

Publication gates

primary url presentpassedsource.primary_url = https://library.municode.com/ca/fontana/codes/zoning_and_development_code — canonical Municode codified source for Fontana Chapter 30; not an aggregator domain; fallback_url = https://www.fontanaca.gov/854/Zoning-General-Plan-Information-Maps (city Planning page).
no aggregator citedpassedFull profile scanned: all citations point to Fontana Municipal Code §-references, CA Government Code sections, federal CFR references, and city/state/federal government domains (fontanaca.gov, leginfo.legislature.ca.gov, hcd.ca.gov, scag.ca.gov, faa.gov, fema.gov, fire.ca.gov). No Zoneomics, Steadily, SitePlanGuide, SitePlanCreator, Propwire, Zonara, or Unzoned references.
confidence tags full formpassedAll confirmed claims carry c§X-XXX form (e.g., c§30-434, c§30-434.1, c§30-436, c§30-437, c§30-479, c§30-520, c§30-630, c§30-633, c§30-656, c§30-658, c§30-659, c§30-Art.III, c§30-Art.XI). Partial claims carry p§X-XXX form with note. Inferred claims carry i§X-XXX form with note. Preemption entries cite GC §X and federal CFR references explicitly.
overlays have parameters trigger confidencepassed5/5 overlays have non-empty params object (≥4 keys each), explicit geographic_trigger string, status, and citation. 4/5 status=confirmed; 1/5 status=partial (DT-FBC) with what_is_confirmed + what_is_missing paired-field discipline for per-district tables not extracted.
preempt section city specificpassedstate_preemptions_applicable[] contains 8 per-law CA entries (ADU, SB 9, Density Bonus, AB 2097, SB 423, AB 2011, Builder's Remedy, SB 10). Each carries qualifying_condition_checked narrative specific to Fontana (Fontana Metrolink as AB 2097 anchor, general-law city status, VHFHSZ hillside per-parcel SB 9 exclusion, Etiwanda/Day Creek SFHA per-parcel exclusion, Sierra/Foothill/Valley commercial corridors for AB 2011, SCAG 6th-cycle RHNA, local §30-437 vs state §65915 stacking ambiguity). SB 423 and Builder's Remedy marked under_review with retrieval_failure_reason narratives (HCD JS-rendered dashboards) per paired-field discipline. SB 10 marked not_applicable with reason per paired-field discipline.

Data quality

74%completeness41 confirmed18 partial22 inferred
Documented gaps
  • Downtown FBC per-district dimensional tables (specific heights, FAR caps, parking ratios by sub-district name) — Municode JS-SPA retrieval blocked full Article III extraction
  • Commercial and industrial parking ratios (Article XI) partially extracted; specific ratios by use type not fully captured
  • Local §30-437 Density Bonus Residential specific amenity qualifying criteria not fully extracted
  • Local DBR §30-437 vs state §65915 stacking precedence not explicitly documented
  • SB 423 tier and Builder's Remedy HCD compliance status under_review pending HCD JS-rendered dashboard retrieval
  • Business Park & Warehousing (§30-659) detailed standards table not fully extracted

Known issues

cohort:needs-dom-retrievalfreshness:volatileblocker:hcd-ca-govdata:gaps-present

Verification

last_verified_at2026-04-19T00:00:00Z
verifier_specialist09-verification-pass
verifier_version1.0
verification_resultpassed
atomic_claims_checked52
atomic_claims_passed49
atomic_claims_failed0
atomic_claims_under_review3
failed_claims
under_review_claimsstate_preemptions_applicable[CA-SB423].applies — HCD tier dashboard retrieval blocked; state_preemptions_applicable[CA-BuildersRemedy].applies — HCD compliance report dashboard retrieval blocked; overlays[DT-FBC].params — per-district dimensional tables not fully extracted (Municode JS-SPA blocker)
narrative_refnarratives/fontana-ca/fleet-20260419T080340-4.json

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