Zoning › California › Ventura County › Thousand Oaks

Thousand Oaks, CA Zoning

Euclidean-zoning. 17 districts · 9 overlays · 6 applicable state preemptions.

Overview

Code type
euclidean
Naming convention
use-type-index

Thousand Oaks Chapter 4 is a conventional Euclidean code. Zones are named by land-use category with a sequential/letter index rather than encoding density or lot size in the code (R-A, R-E, R-O, R-1, R-2, R-3, R-P-D, C-O, C-1 … C-4, M-1, M-2, H-P-D, T-P-D, P-L, plus H/HL/PR/OS overlay zones). Dimensional standards are not tabulated in each district article; instead they are consolidated in Article 25 (Height §9-4.2501, Front Yard §9-4.2504, Side Yard §9-4.2505, Rear Yard §9-4.2508, Lot Area §9-4.2510). District articles (e.g., §9-4.701 for R-1, §9-4.1001 for R-3) govern permitted uses, planned-development procedures, and district-specific conditions. The city is in a 2024–2026 comprehensive zoning code update to implement the 2045 General Plan; substantial modernization (likely form-based or hybrid elements) is expected but not yet adopted. Classification is current-code-specific. | sub_flags_raw=[pre-form-based-update-pending, article-25-consolidated-dimensions, specific-plan-overlay-equivalents]

Worth knowing
  • ARTICLE 25 CONSOLIDATED DIMENSIONS: Thousand Oaks Title 9 / Chapter 4 does not put dimensional standards in each district article. Article 25 (Height §9-4.2501, Front §9-4.2504, Side §9-4.2505, Rear §9-4.2508, Lot Area §9-4.2510) consolidates most numeric standards for R-A, R-E, R-O, R-1, R-2, R-3, R-P-D, C-1, C-2, C-3, C-4, M-1, M-2. District articles (§9-4.401, §9-4.701, §9-4.1001, etc.) govern permitted uses and procedures only. [confirmed across Article 25 sections]
  • CENTERLINE-BASED FRONT SETBACK IN C-1/C-3: §9-4.2504 requires C-1 and C-3 buildings to be ≥100 ft from the CENTERLINE of any public road, street, or highway — not from the front property line. This is distinct from typical property-line setback measurement and can dramatically reduce buildable envelope near wide roads. C-2 (20 ft from property line) and M-2 (10 ft) use conventional measurement. [confirmed §9-4.2504]
  • R-3 DENSITY CONTROL VIA 1,000 SF/UNIT RULE: §9-4.2510 does not set a du/ac cap directly for R-3; instead it requires 1,000 sf of lot area per dwelling unit. Translated: 43.56 du/ac maximum (43,560 sf/ac ÷ 1,000 sf/unit). This indirect density control via per-unit lot-area requirement is characteristic of older California code styles. [derived from §9-4.2510]

+ 8 more in Quirks & notes

Districts

res_sf 6com 5res_mf 3ind 2spec 1
CodeNameCategory Min lotHeight CoverageFAR Du/acParking Setbacks F/S/R
R-ARural Agriculturalres_sf—25 ft[4]————20[1] / —[2] / —[3]
R-ERural Exclusiveres_sf—25 ft[8]————20[5] / —[6] / —[7]
R-OSingle-Family Estateres_sf—25 ft[12]—————[9] / —[10] / —[11]
R-1Single-Family Residentialres_sf7,000 sf[16]25 ft[17]————20[13] / —[14] / —[15]
R-2Two-Family Residentialres_sf7,000 sf[21]25 ft[22]————20[18] / —[19] / —[20]
R-3Multiple-Family Residentialres_mf7,000 sf[26]25 ft[27]——43.56[28]—20[23] / 8[24] / —[25]
R-P-DResidential Planned Developmentres_mf—25 ft[29]————— / — / —
C-OCommercial Officecom——[31]—————[30] / — / —
C-1Neighborhood Shopping Centercom—35 ft[33]—————[32] / — / —
C-2Highway and Arterial Businesscom—35 ft[35]————20[34] / — / —
C-3Community Shopping Centercom—35 ft[37]—————[36] / — / —
C-4Regional Shopping Centercom—75 ft[39]—————[38] / — / —
M-1Industrial Parkind—35 ft[41]—————[40] / — / —
M-2Light Manufacturingind—35 ft[43]————10[42] / — / —
T-P-DTrailer Park Developmentres_mf——————— / — / —
H-P-DHillside Planned Developmentres_sf——————— / — / —
P-LPublic, Quasi-Public, and Institutional Lands and Facilitiesspec——————— / — / —

Confidence: confirmed partial under review not found

Overlays

H
Height Limit Overlay Zone
SPEC
Thousand Oaks Municipal Code §9-4.3300 through §9-4.3305 (Article 33).

Properties specifically designated on the Thousand Oaks zoning map with an 'H' overlay suffix. Per §9-4.2501, height limits in commercial and manufacturing zones may be modified if the property is designated within the Height Limit Overlay Zone.

HL
Historic Landmark Overlay Zone
SPEC
Thousand Oaks Municipal Code §9-4.3400 through §9-4.3404 (Article 34).

Properties designated as local historic landmarks on the Thousand Oaks zoning map (HL suffix). Designation follows Council action on an individual landmark or site.

PR
Protected Ridgeline Overlay Zone
SPEC
Thousand Oaks Municipal Code §9-4.3500 through §9-4.3504 (Article 35).

Parcels on or abutting mapped Protected Ridgelines within the City of Thousand Oaks (ridgeline scenic preservation areas identified under the General Plan open-space/scenic framework).

OS
Open Space Zone
SPEC
Thousand Oaks Municipal Code §9-4.3600 through §9-4.3602 (Article 36).

Parcels designated OS on the Thousand Oaks zoning map — primarily permanent open-space, conservation, and public-park lands. Functions as a base zone in some cases but carries overlay-equivalent scenic/conservation controls on partially-developable parcels.

C-2/AM
C-2/AM Auto Mall Overlay
SPEC
Thousand Oaks Municipal Code §9-4.3900 through §9-4.3903 (Article 39).

Properties designated C-2/AM on the Thousand Oaks zoning map — the Thousand Oaks Auto Mall area along Thousand Oaks Boulevard. Applies only within the mapped Auto Mall district.

OakPres
Oak Tree Preservation Overlay
SPEC
Thousand Oaks Municipal Code §9-4.4201 through §9-4.4209 (Article 42).

City-wide. Any parcel containing a protected oak tree (as defined in Article 42) is subject to oak-tree preservation review prior to development, regardless of base district.

LdmkTree
Landmark Tree Preservation Overlay
SPEC
Thousand Oaks Municipal Code §9-4.4301 through §9-4.4310 (Article 43).

City-wide. Any parcel containing a designated landmark tree (beyond oaks — e.g., heritage species) is subject to landmark-tree preservation review.

FEMA-SFHA
FEMA Floodplain (federal overlay, adopted by reference)
SPEC
Adopted by reference to FEMA FIRM panels per Thousand Oaks Municipal Code Title 9 (flood damage prevention provisions — section number not extracted in this pass).

FEMA Special Flood Hazard Areas (Zone A, AE, AO, X-shaded) as mapped on current FIRM panels for Ventura County / Thousand Oaks.

SP-15
Rancho Conejo Industrial Park — Specific Plan No. 15 (Overlay-Equivalent)
SPEC
Specific Plan No. 15 (Rancho Conejo Industrial Park), adopted under Thousand Oaks specific-plan framework.

Parcels within the Rancho Conejo Industrial Park Specific Plan boundary (map-based) in the Rancho Conejo area.

State preemptions

CA-ADU-GC§66411.7-66411.8applies
Qualifying condition
Applies to all CA cities unconditionally on parcels zoned residential or mixed-use. Thousand Oaks (general-law city, population 123,463 per 2023 Census PEP; Ventura County population 829,590 per 2023 Census PEP) has R-A, R-E, R-O, R-1, R-2, R-3, R-P-D base districts all eligible for ADU/JADU by-right approval. | title=Accessory Dwelling Units / JADUs (SB 897 + AB 2221; SB 1211)
Effect
Ministerial approval with 60-day shot clock; up to 1,200 sf detached ADUs; up to 500 sf JADUs; no owner-occupancy requirement (post-2020 statute); no minimum lot size; no parking required within ½ mile of a major transit stop, within a historic district, or for ADUs created from existing structures. SB 1211 (eff. 2025-01-01) authorizes up to 8 detached ADUs on qualifying multifamily lots.
CA-SB9-GC§65852.21applies
Qualifying condition
Applies to ministerial lot splits and duplex conversion on single-family zoned parcels in CA cities. Thousand Oaks has res_sf base districts (R-A, R-E, R-O, R-1) that qualify. Per-parcel conditional on exclusions: historic districts (HL overlay), Very High Fire Hazard Severity Zones (CalFIRE — Thousand Oaks has substantial VHFHSZ coverage along the Santa Monica Mountains / Conejo Valley wildland-urban interface), FEMA SFHA, conservation easements, coastal zones (Thousand Oaks is NOT in the Coastal Zone; Ventura County coastal cities are Oxnard/Port Hueneme/Ventura). The state law applies to the city as a regulatory matter; per-parcel hazard audit required for site-level application. | title=SB 9 — Housing Opportunity and More Efficiency (HOME) Act
Effect
Ministerial (no discretionary review) urban lot split creating two lots of ≥1,200 sf each, and/or ministerial duplex approval on a parcel zoned single-family. Local objective development standards may apply but cannot preclude the SB 9 project.
CA-AB2097-GC§65863.2applies
Qualifying condition
Applies in cities where a parcel is within ½ mile of a qualifying 'major transit stop' per PRC §21064.3 / GC §65863.2 definition. Thousand Oaks is served by Thousand Oaks Transit (local fixed-route bus) and the Conejo Valley is served by Metrolink (Ventura County Line — Moorpark station is the nearest Metrolink rail stop, ~8 miles away; no Metrolink stop within Thousand Oaks city limits). Local bus service is generally sub-15-min-peak frequency only on select segments; a per-stop GTFS audit is required to determine which (if any) Thousand Oaks transit stops qualify as 'major transit stops.' AB 2097 applies as a regulatory floor city-wide, but the qualifying-parcel set may be narrow or zero. | title=AB 2097 — Parking Mandate Elimination Near Transit ; what_is_confirmed=AB 2097 applies to Thousand Oaks as a regulatory matter; qualifying-stop determination is site-specific. ; what_is_missing=GTFS-derived list of Thousand Oaks Transit stops meeting the 'major transit stop' frequency test; a per-stop audit may show zero qualifying stops if no bus corridor hits 15-min peak headway.
Effect
Cities cannot impose or enforce minimum parking requirements on residential, commercial, or mixed-use development within ½ mile of a qualifying major transit stop. 100%-affordable and mixed-income affordable projects receive stronger parking protections.
CA-DENSITY-BONUS-GC§65915applies
Qualifying condition
Applies to all CA cities unconditionally on parcels where housing is a permitted use. Thousand Oaks's R-2, R-3, R-P-D, and mixed-use/commercial districts permitting housing all qualify. AB 1287 (eff. 2024-01-01) stacks a second bonus tier for projects providing additional very-low-income and moderate-income units, reaching up to ~100% density bonus in combination. | title=California Density Bonus Law (+ AB 1287 2024)
Effect
Density bonus up to 50% (AB 1287 stack up to ~100%) for projects providing 5–15% very-low-income, 10–24% low-income, or 10–44% moderate-income units; plus concessions/waivers of development standards and reduced parking requirements.
CA-SB423-GC§65913.4applies
Qualifying condition
SB 423 applies to cities designated by HCD as failing RHNA targets. Thousand Oaks's 6th-Cycle (2021–2029) Housing Element was adopted 2022-02-07 and received an HCD substantial-compliance letter on 2024-05-29. A compliant Housing Element is one of the inputs to HCD's SB 35/423 tier determination. A certified-compliant jurisdiction is typically assigned the '10% affordability' tier (rather than 50%) unless RHNA production reporting shows shortfalls by income tier. Tier assignment conditional on HCD's most recent SB 35/423 Determination release; not retrieved live in this pass. | title=SB 423 — Streamlined Multifamily Approval (extends SB 35) ; what_is_confirmed=Thousand Oaks Housing Element is HCD-certified compliant as of 2024-05-29. SB 423 applies to the city as a regulatory matter. ; what_is_missing=HCD's current SB 35/423 Determination release (10% vs 50% vs exempt tier) for Thousand Oaks — not retrieved live in this pass.
Effect
Ministerial streamlined approval is available for qualifying multifamily projects on res_mf, mu, com parcels where housing is permitted, subject to tier-qualifying affordability (≥10% or ≥50% lower-income) and other SB 423 criteria, with fewer CEQA/discretionary gates.
CA-AB2011-GC§65912.100applies
Qualifying condition
Applies on commercial-zoned parcels meeting AB 2011's 'qualifying corridor' criteria (right-of-way width, non-residential use, etc.) for 100%-affordable projects or mixed-income projects on corridors. Thousand Oaks has C-1, C-2, C-3, C-4, C-O commercial base districts along major corridors including Thousand Oaks Boulevard (the Auto Mall / C-2/AM overlay), Moorpark Road, Hillcrest Drive, and sections of US-101 frontage. A per-segment ROW-width audit is required to enumerate specific AB 2011-eligible corridor segments. 100%-affordable projects apply unconditionally on any commercial parcel. | title=AB 2011 — Affordable Housing and High Road Jobs Act ; what_is_confirmed=AB 2011 applies in Thousand Oaks as a regulatory matter; commercial corridors exist in the city's C-1/C-2/C-3/C-4/C-O zones. ; what_is_missing=Per-corridor ROW-width and qualifying-use audit to enumerate specific AB 2011-eligible corridor segments.
Effect
Ministerial multifamily approval on qualifying commercial corridor sites; 100%-affordable projects eligible across broader commercial zones.
Non-applicable laws (2)
CA-BUILDERS-REMEDY-GC§65589.5(d)(5)applies
Qualifying condition
Builder's Remedy triggers when a city lacks an HCD-certified compliant Housing Element. Thousand Oaks's 6th-Cycle Housing Element was adopted 2022-02-07 and HCD issued a substantial-compliance letter on 2024-05-29. The Housing Element is in substantial compliance. Builder's Remedy is therefore DORMANT for Thousand Oaks as of the 2024-05-29 certification date. A future RHNA-production failure or decertification would reactivate it. | title=California Builder's Remedy (Housing Accountability Act)
Effect
No effect while Housing Element is certified. If decertified, projects providing ≥20% lower-income units could bypass local zoning.
CA-SB10-GC§65913.5under_review
Qualifying condition
title=SB 10 — Local Upzoning Authorization (Opt-In) ; reason=SB 10 is an opt-in upzoning authorization — it applies only where the city has affirmatively adopted an ordinance invoking SB 10 authority. No evidence that Thousand Oaks has adopted a SB 10 upzoning ordinance was found in this research. SB 10 therefore has no current effect on Thousand Oaks's base-district standards.
Effect
No effect unless city opts in.

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.

Amendment history

DateKindCitation
2024-05-29adoptionHCD letter confirming Thousand Oaks 6th-Cycle Housing Element is in substantial compliance with State Housing Element Law (2024-05-29; referenced in Thousand Oaks Council staff reports and CitizenPortal coverage). | kind_raw=certification
2022-02-07adoption6th-Cycle (2021–2029) Housing Element adopted by Thousand Oaks City Council on 2022-02-07 (per HCD-hosted adopted element PDF). HCD substantial-compliance certification letter received 2024-05-29 per Thousand Oaks Planning communications.

Quirks & notes

  • ARTICLE 25 CONSOLIDATED DIMENSIONS: Thousand Oaks Title 9 / Chapter 4 does not put dimensional standards in each district article. Article 25 (Height §9-4.2501, Front §9-4.2504, Side §9-4.2505, Rear §9-4.2508, Lot Area §9-4.2510) consolidates most numeric standards for R-A, R-E, R-O, R-1, R-2, R-3, R-P-D, C-1, C-2, C-3, C-4, M-1, M-2. District articles (§9-4.401, §9-4.701, §9-4.1001, etc.) govern permitted uses and procedures only. [confirmed across Article 25 sections]
  • CENTERLINE-BASED FRONT SETBACK IN C-1/C-3: §9-4.2504 requires C-1 and C-3 buildings to be ≥100 ft from the CENTERLINE of any public road, street, or highway — not from the front property line. This is distinct from typical property-line setback measurement and can dramatically reduce buildable envelope near wide roads. C-2 (20 ft from property line) and M-2 (10 ft) use conventional measurement. [confirmed §9-4.2504]
  • R-3 DENSITY CONTROL VIA 1,000 SF/UNIT RULE: §9-4.2510 does not set a du/ac cap directly for R-3; instead it requires 1,000 sf of lot area per dwelling unit. Translated: 43.56 du/ac maximum (43,560 sf/ac ÷ 1,000 sf/unit). This indirect density control via per-unit lot-area requirement is characteristic of older California code styles. [derived from §9-4.2510]
  • 25 FT BASE HEIGHT WITH CONDITIONAL 35 FT / 3 STORIES: §9-4.2501 sets a 25 ft base height across all R-A/R-E/R-O/R-1/R-2 zones, with a conditional +10 ft / +3 stories if side-yard requirements are increased proportionally. Effective ceiling is 35 ft / 3 stories, but only when the project is willing to trade side-yard width for vertical envelope. [confirmed §9-4.2501]
  • R-3 SIDE-YARD ABSOLUTE MINIMUM 8 FT / 16 FT TOTAL: §9-4.2505 — R-3 multiple-dwelling side yards shall be ≥8 ft per side and the sum of side yards shall be ≥16 ft. This is the only district with an absolute per-side minimum in Article 25 (R-1/R-2 use a lot-width-proportional formula instead). [confirmed §9-4.2505]
  • R-O DEPTH-PROPORTIONAL FRONT SETBACK: §9-4.2504 — R-O front yard is 25% of lot depth, capped at 35 ft maximum. On a 120-ft-deep lot, R-O front setback = 30 ft. This is a depth-proportional rule rather than a fixed number. [confirmed §9-4.2504]
  • COMPREHENSIVE ZONING CODE UPDATE 2024–2026: Thousand Oaks is in the middle of a full Chapter 4 rewrite to implement the 2045 General Plan (toaks2045.org). The current Title 9 / Chapter 4 remains in effect through adoption; the new code is expected to introduce form-based or hybrid elements and modernize mixed-use regulations. [confirmed from toaks.gov/planning/zoning-code-update and General Plan 2045]
  • HOUSING ELEMENT CERTIFIED 2024-05-29: Thousand Oaks 6th-Cycle (2021–2029) Housing Element received HCD substantial-compliance certification on 2024-05-29. This makes Builder's Remedy DORMANT and positions the city for the '10% affordability' SB 35/423 tier (subject to HCD's current determination release). [confirmed from CitizenPortal coverage; HCD letter referenced]
  • SPECIFIC PLANS FUNCTION AS OVERLAYS: Thousand Oaks uses specific plans (e.g., Rancho Conejo Industrial Park Specific Plan No. 15) to modify base-district standards within mapped boundaries. Within SP-15, M-1 standards are superseded (20,000 sf min lot, 10,000 sf with permit, 20 ft front setback, floor-area parking with 35% compact ratio). Specific plans are overlay-equivalent but not enumerated as 'overlay zones' in the zoning map legend. [confirmed SP-15 parameters; full city specific-plan inventory not retrieved]
  • HILLSIDE / RIDGELINE PRESERVATION POSTURE: Thousand Oaks uses Hillside PD (H-P-D, Article 31), Protected Ridgeline Overlay (PR, Article 35), and Open Space (OS, Article 36) together to aggressively protect the Santa Monica Mountains, Conejo Mountain, Conejo Ridge, and other scenic ridgelines. Much of the city's periphery is OS or subject to PR review. [confirmed from Articles 31, 35, 36]
  • ELAWS MIRROR USED FOR RETRIEVAL: codelibrary.amlegal.com (the authoritative host) returns 403 to scripted WebFetch. The public eLaws mirror at toaks-ca.elaws.us/code/muco_t9_ch4 was used for readable article-text retrieval; it occasionally rate-limits requests. Both hosts serve the same compilation. [confirmed]

Formulas

Definitions

height
Grade to highest point of structure.
lot_coverage
Building footprint / lot area.
far
Gross floor area / lot area.
du_ac
Dwelling units per gross acre.
setback_front
Front property line to nearest building face.
setback_side
Side property line to nearest building face.
setback_rear
Rear property line to nearest building face.
parking
Spaces per dwelling unit unless noted.

Capacity calculations

max_footprint_sf
lot_area_sf * lot_coverage
max_gfa_sf
lot_area_sf * far
buildable_width_ft
lot_width_ft - setback_side_ft * 2
buildable_depth_ft
lot_depth_ft - setback_front_ft - setback_rear_ft
max_stories_approx
max_height_ft / 10

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.

—
—
Sort by —
LOW
HIGH
drag to orbit · scroll to zoom
Max height
— ft
——
Floor area ratio
—
——
Lot coverage
—%
——
Setbacks (F / S / R)
— ft
——
Parking
— /unit
——
Max density
— du/ac
——
Min lot size
— sf
——
◄
prev
►
next
Copy zoning profile
Loading…
District Category Height FAR Coverage Setbacks Parking Density Min lot Overlays

Sources & references

Primary source
Thousand Oaks Municipal Code, Title 9 Planning and Zoning, Chapter 4 Zoning
amlegal codelibrary current compilation (effective/supplement date not exposed on amlegal header; code is actively amended) · retrieved 2026-04-19
Citations
  1. [1] §9-4.2504
  2. [2] u
  3. [3] z
  4. [4] §9-4.2501
  5. [5] §9-4.2504
  6. [6] u
  7. [7] z
  8. [8] §9-4.2501
  9. [9] §9-4.2504
  10. [10] u
  11. [11] z
  12. [12] §9-4.2501
  13. [13] §9-4.2504
  14. [14] §9-4.2505
  15. [15] z
  16. [16] §9-4.2510
  17. [17] §9-4.2501
  18. [18] §9-4.2504
  19. [19] §9-4.2505
  20. [20] z
  21. [21] §9-4.2510
  22. [22] §9-4.2501
  23. [23] §9-4.2504
  24. [24] §9-4.2505
  25. [25] z
  26. [26] §9-4.2510
  27. [27] §9-4.2501
  28. [28] §9-4.2510
  29. [29] §9-4.2501
  30. [30] z
  31. [31] z
  32. [32] §9-4.2504
  33. [33] §9-4.2501
  34. [34] §9-4.2504
  35. [35] §9-4.2501
  36. [36] §9-4.2504
  37. [37] §9-4.2501
  38. [38] z
  39. [39] §9-4.2501
  40. [40] §9-4.2504
  41. [41] §9-4.2501
  42. [42] §9-4.2504
  43. [43] §9-4.2501

Research status

Publication gates

primary url presentpassedsource.primary_url = https://codelibrary.amlegal.com/codes/thousandoaks/latest/thousandoaks_ca/0-0-0-11157 (American Legal Publishing codelibrary — official hosted compilation of Thousand Oaks Municipal Code Title 9). elaws_mirror_url (toaks-ca.elaws.us) is a secondary retrieval-friendly mirror of the same compilation. city_landing_url, code_update_url, general_plan_2045_url, and housing_element_url are all primary city/HCD sources.
no aggregator citedpassedFull record scan found no Zoneomics / Steadily / SitePlanGuide / SitePlanCreator / Unzoned / Zonara / Propwire references. All citations point to Thousand Oaks Municipal Code §9-4.* sections (Articles 1–44 and Article 25 sections 9-4.2501, 9-4.2504, 9-4.2505, 9-4.2508, 9-4.2510), California Government Code (GC §) sections, California state bill numbers (SB 9, SB 423, AB 2011, AB 2097, AB 1287, SB 897, AB 2221, SB 1211, SB 10, AB 1893), amlegal / elaws / toaks.gov / hcd.ca.gov primary URLs, and Census primary data for population / county population.
confidence tags full formpassedAll confirmed district and overlay claims carry c§X.Y form (c§9-4.2501, c§9-4.2504, c§9-4.2505, c§9-4.2510, c§9-4.701, c§9-4.1001, c§9-4.3300, c§9-4.3400, c§9-4.3500, c§9-4.3600, c§9-4.3900, c§9-4.4201, c§9-4.4301). Partial claims carry p§X.Y form (p-federal-reference for FEMA floodplain reference, p-SP-15 for Specific Plan No. 15 where full ordinance number not retrieved). Preemption entries carry GC § citations (GC § 65852.21, GC § 66411.7, GC § 66411.8, GC § 65863.2, GC § 65915, GC § 65913.4, GC § 65912.100, GC § 65589.5(d)(5), GC § 65913.5) plus bill-number cross-references.
overlays have parameters trigger confidencepassedGate 4 (v3 canonical). Every entry in overlays[] has non-empty parameters[], geographic_trigger, status, and citation. (1) H Height Limit Overlay (§9-4.3300), (2) HL Historic Landmark Overlay (§9-4.3400), (3) PR Protected Ridgeline Overlay (§9-4.3500), (4) OS Open Space (§9-4.3600), (5) C-2/AM Auto Mall Overlay (§9-4.3900), (6) Oak Tree Preservation (§9-4.4201), (7) Landmark Tree Preservation (§9-4.4301), (8) FEMA Floodplain (partial — federal-reference citation with what_is_confirmed/what_is_missing pair), (9) Rancho Conejo SP-15 (partial — SP-15 ordinance number not retrieved). All entries satisfy Gate 4.
preempt section city specificpassedGate 5 (v3 canonical). Thousand Oaks, CA is in the active-preemption set (CA). state_preemptions_applicable[] contains eight city-specific entries (not a link-stub). Each entry is evaluated against Thousand Oaks-specific primary data: population 123,463 (2023 Census PEP), Ventura County population 829,590 (2023 Census PEP), general-law city, 6th-Cycle Housing Element adopted 2022-02-07 and HCD-certified compliant 2024-05-29, no Metrolink rail stop inside city (Moorpark station ~8 mi away) so AB 2097 qualifying-stop set is narrow, commercial corridors (Thousand Oaks Boulevard / Auto Mall, Moorpark Road, Hillcrest Drive, US-101 frontage) for AB 2011, and R-A/R-E/R-O/R-1 res_sf inventory for SB 9 and ADU predicates. Applies distribution: 6 applies=true (ADU confirmed; SB 9 confirmed; AB 2097 partial — per-stop GTFS audit outstanding; Density Bonus + AB 1287 confirmed; SB 423 partial — HCD tier release outstanding but Housing Element is certified compliant; AB 2011 partial — per-corridor ROW audit outstanding); 2 applies=false (Builder's Remedy confirmed DORMANT because Housing Element is HCD-certified compliant as of 2024-05-29; SB 10 not_applicable — opt-in, no Thousand Oaks ordinance found). Each entry carries qualifying_condition_checked, effect, effective_date, citation, and preempted_fields_in_this_record[]. preempt_section_summary narrative also populated.
research profile consistentpassedFactored verification pass executed with 36 atomic claims covering: (a) source identification (amlegal URL, eLaws mirror, Title 9 URL, Article 25 URL, city landing URL), (b) classification (Euclidean with specific-plan overlay-equivalents; consolidated Article 25 dimensions), (c) district inventory (18 districts enumerated from Articles 4–17, 20, 31, 32, 39), (d) overlay inventory (H, HL, PR, OS, C-2/AM, Oak Preservation, Landmark Tree, FEMA floodplain, SP-15), (e) Article 25 numeric standards (§9-4.2501 height table, §9-4.2504 front yards, §9-4.2505 side yards, §9-4.2510 lot area + 1,000 sf/unit R-3 rule), (f) eight state-preemption entries with qualifying conditions and primary-data inputs, (g) Housing Element 2024-05-29 HCD certification as the Builder's Remedy dormancy trigger. 34/36 claims supported; 2 not_captured/partial (§9-4.2508 main-building rear yard; SB 423 HCD tier release) disclosed in failed_claims[]. Pass ratio 94% — above the 80% threshold but below 95%; narrative marks record as passed_pending_browser_retrieval.

Data quality

55%completeness28 confirmed4 partial
Documented gaps
  • Rear-yard setback (§9-4.2508) text not fully retrieved — section text focuses on accessory-building placement (25% of rear yard, ≤15 ft height) rather than a main-building rear setback; main-building rear yard by zone remains not_captured for most districts.
  • Lot coverage (%), FAR, and parking ratios by district — not enumerated in Article 25 or the retrieved district articles; may live in Article 24 (Off-Street Parking) and development-permit conditions in Articles 12–17.
  • C-O (Commercial Office) dimensional standards — not listed in the retrieved §9-4.2501 or §9-4.2504 text; may be governed by Article 11 development-permit conditions.
  • Full Specific Plan inventory (Rancho Conejo SP-15 is confirmed; others — e.g., Thousand Oaks Boulevard Specific Plan, Lang Ranch, Dos Vientos — not enumerated in this pass).
  • Floodplain ordinance specific section number and local freeboard amount — not extracted in this pass (federal FEMA overlay referenced by reference in Title 9).
  • HCD SB 35/423 Determination release tier for Thousand Oaks (10%/50%/exempt) — requires HCD dataset fetch. Housing Element is certified compliant (2024-05-29), which typically yields 10% tier but must be confirmed.
  • Per-stop GTFS audit for Thousand Oaks Transit for AB 2097 qualifying-major-transit-stop applicability.
  • Per-corridor ROW-width audit (Thousand Oaks Boulevard, Moorpark Road, Hillcrest Drive, US-101 frontage) for AB 2011 qualifying-corridor applicability.

Known issues

freshness:volatiledata:gaps-present

Verification

last_verified_at2026-04-19T00:00:00Z
verifier_specialistfleet-20260419T084409-10
verifier_version1.0
verification_resultpassed_pending_browser_retrieval
atomic_claims_checked36
atomic_claims_passed34
atomic_claims_failed2
failed_claimsstatus: not_captured · reason: §9-4.2508 text retrieved covers accessory-building rear-yard rules (25% coverage max, 15 ft max height, R-3 exception) but does not surface a main-building rear yard minimum number for each zone. Marked not_captured across all districts rather than invented.; status: partial · reason: HCD's current SB 35/423 Determination release dataset was not retrieved live in this pass. Housing Element certification status (compliant as of 2024-05-29) strongly implies 10% tier, but the live determination was not confirmed.
narrative_refnarratives/thousand-oaks-ca/fleet-20260419T084409-10.json

Other cities in this state

Nearest-alphabetical profiles. Click through to compare zoning patterns side-by-side.

AnaheimCoronaFresnoIrvineMoreno ValleyOxnardRedondo BeachSan Francisco