Local zoning · Kern County

Kern County — Development Standards

Development Standards under the Kern County local zoning and planning code, with the controlling citations.

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Last reviewed: July 6, 2026

Overview

This page distills how the Kern County Zoning Ordinance (Title 19) regulates what you can build in the unincorporated areas: where buildings may sit on a lot, how tall they can be, and how many dwellings are allowed. These development standards live in the base zoning districts and in several combining/overlay districts, and they interact with countywide standards like road centerline setbacks and special development controls for multifamily, commercial and industrial projects. Title 19 applies to the county’s unincorporated areas only; incorporated cities have their own rules.

The most important rule of thumb: the more restrictive standard controls. In the unincorporated areas, base district rules, any applicable combining/overlay standards, centerline-based front setbacks, and special development standards all stack — and when two rules conflict, the stricter one applies.

Use this page together with the high-level Kern County Zoning and Kern County Land Use guides.

How Kern County expresses key standards

  • Setbacks often reference the legal centerline of the adjacent street (e.g., “40/45/55 feet from local/secondary/major highway centerlines” in commercial and industrial districts). A countywide “front yard averaging” exception can apply in residential estates and R districts.
  • “Lot coverage” is defined, but most districts regulate intensity via minimum lot area per dwelling, not via FAR. Floor area ratio is not specified in the retrieved materials.
  • Yard encroachments (eaves, porches, small sheds), through-lot rules, and valley-wide section/midsection line setbacks can further shape your envelope.
  • Special Development Standards apply to multifamily, commercial, and industrial proposals, tying required parking, signage, and landscaping and screening to the zoning. Plot plan/design review is generally required before permits on these uses.

Snapshot: selected base districts (unincorporated areas)

The table below highlights the most decision-relevant standards. Always confirm parcel-specific overlays and map lines.

District Min Lot Size Front Setback (from CL) Side/Rear Max Height Lot Area per DU Code Reference
A-1 (Limited Agriculture) 2.5 ac 55/70/80 ft (local/secondary/major) 5 ft sides; 10 ft street-side corner; 25 ft street-side in rear 25 ft on reverse corners; 5 ft rear 35 ft/3 stories (residential); towers/antennas ≤80 ft One principal dwelling per lot § 19.14.050, § 19.14.070, § 19.14.080, § 19.14.060
R-3 (High-density Residential) 6,000 sf 45/60/70 ft; min 15 ft from ROW 5 ft sides; 10 ft street-side; 5 ft rear 45 ft/4 stories 1,500 sf/DU § 19.22.050–080
CO (Commercial Office) 7,500 sf 40/45/55 ft Side: none; Rear: 20 ft (alley exception) 45 ft/4 stories If dwellings allowed: 1,500 sf/DU § 19.28.050–080
C-1 (Neighborhood Commercial) 7,500 sf 40/45/55 ft Side: none; Rear: 20 ft (alley exception) 45 ft/4 stories If dwellings allowed: 1,500 sf/DU § 19.30.050–080
C-2 (General Commercial) 7,500 sf 40/45/55 ft Side: none; Rear: 20 ft (alley exception) Not found in retrieved materials If dwellings allowed: 1,500 sf/DU § 19.32.050–070, § 19.32.060
CH (Highway Commercial) 7,500 sf 40/45/55 ft Side: none; Rear: 20 ft (alley exception) 35 ft/3 stories Dwellings generally not permitted § 19.34.050–090
M-2 (Medium Industrial) — 40/45/55 ft Side: none; Rear: none 100 ft/6 stories (up to 135 ft/10 stories with extra setbacks) — § 19.38.070–090
NR (Natural Resource) 5 ac 55/70/80 ft 5 ft sides (street-side 10 ft); 5 ft rear 75 ft/6 stories max One single-family dwelling per legal lot § 19.46.050–080

CL = legal centerline of the street/highway.

District-by-district notes (unincorporated areas)

A-1 — Limited Agriculture

  • Purpose/uses: Working rural lands with one principal dwelling per lot; agricultural and rural-supportive activities.
  • Key standards: 2.5 ac minimum lot; front setbacks 55/70/80 ft by roadway class; sides 5 ft (street-side 10 ft, reverse-corner special 25 ft rule in rear 25 ft); rear 5 ft; residential height 35 ft.
  • Where it applies: Scattered throughout the unincorporated valley and foothills.

R-2 — Medium-density Residential

  • Purpose/uses: Multifamily neighborhoods (duplexes and small apartment forms).
  • Key standards: Buildings ≤35 ft/3 stories; typical side 5 ft (street-side 10 ft, reverse-corner rear 25 ft area has 25 ft street-side); rear 5 ft. Front yard numbers not found in retrieved materials. See countywide front yard averaging for E and R districts.
  • Where it applies: Infill pockets across unincorporated communities.

R-3 — High-density Residential

  • Purpose/uses: Apartment-scale residential.
  • Key standards: Min lot 6,000 sf; 1,500 sf/DU; front 45/60/70 ft (min 15 ft from ROW); sides 5 ft (street-side 10 ft; reverse-corner adjustment); rear 5 ft; max 45 ft/4 stories.
  • Where it applies: Higher-density nodes in unincorporated areas.

CO — Commercial Office

  • Purpose/uses: Low- to mid-rise office/institutional corridors.
  • Key standards: Min lot 7,500 sf; front 40/45/55 ft; side none; rear 20 ft (alley exceptions); max 45 ft/4 stories; residential by CUP at 1,500 sf/DU.
  • Where it applies: Office corridors and employment centers in the unincorporated areas.

C-1 — Neighborhood Commercial

  • Purpose/uses: Community-serving commercial.
  • Key standards: Min lot 7,500 sf; front 40/45/55 ft; side none; rear 20 ft; height 45 ft/4 stories (accessory similar); mixed-use residential yards follow R-3 pattern.
  • Where it applies: Unincorporated community main streets and nodes.

C-2 — General Commercial

  • Purpose/uses: Broad retail/services, some mixed use by CUP.
  • Key standards: Min lot 7,500 sf; front 40/45/55 ft; side none; rear 20 ft; residential by CUP at 1,500 sf/DU; height Not found in retrieved materials.
  • Where it applies: Highway- and regional-serving commercial in unincorporated areas.

CH — Highway Commercial

  • Purpose/uses: Auto- and highway-oriented commercial corridors.
  • Key standards: Min lot 7,500 sf; front 40/45/55 ft; side none; rear 20 ft; height 35 ft/3 stories; dwellings generally not permitted.
  • Where it applies: Interchanges and highway frontages.

M-2 — Medium Industrial

  • Purpose/uses: Manufacturing/processing uses.
  • Key standards: Front 40/45/55 ft; no side/rear yards required; height 100 ft/6 stories (up to 135 ft/10 stories with additional setbacks); industrial signs and [signage] rules apply across Title 19.
  • Where it applies: Industrial districts in the unincorporated valley/desert.

NR — Natural Resource

  • Purpose/uses: Resource production, very low residential density.
  • Key standards: Min lot 5 ac; front 55/70/80 ft; sides 5 ft (street-side 10 ft); rear 5 ft; height 75 ft/6 stories; one dwelling per legal lot.
  • Where it applies: Resource and open-lands across the unincorporated county.

Countywide and combining/overlay standards that modify the envelope

  • Countywide “front yard averaging” (E, R-1, R-2, R-3 only): If 40%+ of a block face is built to an average setback, new homes can align to the average. Never build in a mapped future right-of-way.
  • Through-lot and yard encroachments: Special rear-yard-as-front rules for through lots; defined projections (eaves, porches) may encroach limited distances.
  • San Joaquin Valley section/midsection lines: Mandatory 45 ft/55 ft setbacks from midsection/section lines (below 1,000 ft elevation, valley area).
  • Small wind systems: Height ≤120 ft; setbacks 65 ft from residential-zoned lines (can reduce if system ≤80 ft and quieter), 30 ft elsewhere; noise and lighting limits apply.

Overlays/combining districts (see Kern County Overlay Districts):

  • KRC (Kern River Corridor): Extra riparian protections. Set back ≥90 ft from the floodway line or use the 60% depth alternative; within 200 ft of the floodway, height ≤35 ft/3 stories. Adds landscape and trail dedication standards and may require a Kern River development permit.
  • FPP (Floodplain Primary): No buildings or structures permitted; development is effectively prohibited (parking and certain signs/landscape rules still referenced).
  • FPS (Floodplain Secondary): Base-district yards apply plus a geotechnical riverbank buffer; sewage systems must be ≥100 ft from the top of bank.
  • H (Airport Approach Height): Height ≤35 ft unless specifically allowed per airport approach review; base-district yards otherwise apply. Related military airspace height concurrence may also apply.
  • Lot Size (LS) combining: Establishes minimum gross lot sizes (e.g., 5/10/20/40/80 acres) in addition to base-district rules; density cannot exceed the General Plan cap.
  • CL (Cluster) combining: Allows creative site planning and density up to +10% over General Plan, with project-level yard/spacing standards set in the approved plan.
  • SP (Special Planning): Custom site plan–based standards that must outperform standard zoning on public benefits; yards/height/lotting are set through SP approval.

Special development standards (project-wide requirements)

  • Multifamily, commercial, and industrial projects must meet Title 19 Chapter 19.80 standards: wall/screening at residential edges, lighting cutoffs, equipment screening, and explicit ties to county parking, signage, and landscaping and screening chapters. A plot plan/design review is typically required before permits.
  • Multifamily adjacency: step-downs, opaque glazing, covered parking ratios, and common open space minimums can apply at certain unit thresholds.
  • Density bonus: County program layers density above General Plan limits for projects that provide on-site childcare, full infrastructure, or affordable units (when eligible).

Accessory dwellings (ADUs)

  • State law controls ADU setbacks/height minimum allowances even if local zoning is more restrictive; at least an 800 sf ADU with 4 ft side/rear setbacks must be allowed when other development standards are met. See California ADU law for the statewide floor.

Information Gaps

  • R-2 front yard numeric setbacks: Not found in retrieved materials (side/rear/height were found). Verify with the jurisdiction.
  • C-2 height limits: Not found in retrieved materials. Verify with the jurisdiction.
  • FAR standards: Not found in retrieved materials; Kern County typically uses lot area per dwelling and General Plan density, not FAR. Verify with the jurisdiction.

Checklist

  • Confirm the base zoning for the parcel and applicable combining/overlay districts in the unincorporated areas. Start with Kern County Zoning.
  • Map road classifications and measure front setbacks from the centerline by district (e.g., 40/45/55 ft or 45/60/70 ft rules). Apply front-yard averaging where eligible.
  • Check countywide yard encroachments, through-lot rules, and section/midsection line setbacks if in the San Joaquin Valley.
  • If near the Kern River or mapped floodplains, apply KRC/FPP/FPS setbacks and any permit requirements.
  • If near airports or in protected airspace, apply height caps and obtain required concurrences.
  • For multifamily/commercial/industrial, prepare for Chapter 19.80 standards and plot plan/design review; align with parking, signage, and landscaping and screening.
  • If seeking relief, consider variances and exceptions. For existing sites, see Kern County Nonconforming Uses.

Risks & Ambiguities

Issue Why it matters What to verify
Centerline-based setbacks Mis-measurement can shift a building by feet and trigger redesigns Confirm roadway classification and centerline location; check front-yard averaging eligibility.
Overlay stacking (KRC/FPP/FPS/H) Overlays can add larger setbacks or lower height caps than base zones Pull overlay maps and apply the stricter standard; verify KRC floodway line and airport surfaces.
Military airspace limits Separate height control that can override base district highs If in protected airspace, obtain required concurrence; Board may weigh variances.
Section/midsection line setbacks (valley) Adds fixed 45/55 ft buffers unrelated to frontage mapping Confirm if parcel is below 1,000 ft MSL in the San Joaquin Valley portion.
R-2 and C-2 gaps Missing numbers can derail scheduling Request a zoning letter or confirm current online code pages. Not found in retrieved materials.
Title 19 vs. other codes Other agencies’ rules may be stricter Title 19 defers to other regulations where more restrictive; do not confuse zoning with the California Building Standards Code.

Plain-English Summary

In Kern County’s unincorporated areas, most setbacks are measured from the road centerline, heights cap by district, and housing intensity comes from “square feet of lot per dwelling” — then overlays like the Kern River Corridor, floodplains, and airport height zones can layer on stricter rules. For multifamily, commercial, and industrial projects, plan on a plot plan/design review and countywide standards for walls, lighting, parking, landscaping, and signs.

Source References

  • Title 19 Zoning; applicability and relationship to other regulations: § 19.02.010, § 19.02.030, § 19.02.040
  • Definitions: lot coverage § 19.04.399
  • General yard tools: front yard averaging § 19.08.120; through-lots § 19.08.190; encroachments § 19.08.200; section/midsection lines § 19.08.405; small wind energy § 19.08.415
  • A-1 standards: § 19.14.050–080
  • R-2 standards: side/rear/height § 19.20.070–090 (front yard not found in retrieved materials)
  • R-3 standards: § 19.22.050–080
  • CO standards: § 19.28.050–080
  • C-1 standards: § 19.30.050–090
  • C-2 standards: § 19.32.050–070, § 19.32.060 (height not found in retrieved materials)
  • CH standards: § 19.34.050–090
  • M-2 standards: § 19.38.070–090
  • NR standards: § 19.46.050–080
  • KRC overlay: § 19.73.060–100, § 19.73.120
  • FPP district: § 19.50.050–130
  • FPS overlay: § 19.72.070
  • H (Airport Approach Height): § 19.76.080, § 19.76.125 (lighting)
  • Hillside Development: § 19.88.010–040
  • Special Development Standards and plot plan review: § 19.80.010–030, § 19.80.040–050
  • Cluster combining (CL): § 19.58.010–090
  • Density bonus: § 19.92.030–050 and program bonuses § 19.92.060–. (as excerpted)
  • State ADU floor (for context): 2025 CA ADU guidance (Gov. Code §§ 66321–66323)

Sources

Retrieved passages

  • Kern County Zoning Code (section of) High relevance
  • Kern County Zoning Code (§ 48) High relevance
  • Kern County Zoning Code (Chapter 19.110) High relevance
  • CFC § 32 (§ 32) High relevance
  • Kern County Zoning Code (§ 94) High relevance
  • Kern County Zoning Code (Chapter 19.86) High relevance
  • Kern County Zoning Code (§ 91) High relevance
  • CFC § 34 (chapter or) High relevance
  • Kern County Zoning Code (section of) High relevance
  • Kern County Zoning Code (§ 80) High relevance
  • Kern County Zoning Code (Chapter 19.82) High relevance
  • Kern County Zoning Code (§ 54) High relevance
  • CBC § 500 (chapter and) Medium relevance
  • CBC § 66314 (§ 66314) Medium relevance
  • CFC § 7060.06 (§ 7060.06) High relevance
  • Kern County Zoning Code (§ 34) High relevance
  • Kern County Zoning Code (§ 72) High relevance
  • Kern County Zoning Code (chapter or) Medium relevance
  • Kern County Zoning Code (Section 19.72.130) Medium relevance
  • Kern County Zoning Code (Chapter 19.58) High relevance
  • Kern County Zoning Code (chapter or) Medium relevance
  • CFC § 44 (§ 44) Medium relevance

Cited sections

Frequently asked questions

What can I build in A-1 in unincorporated Kern County?

A-1 allows one principal single-family dwelling per legal lot alongside agricultural activities. Minimum lot size is 2.5 acres; front setbacks are 55/70/80 ft by road class; sides are 5 ft (10 ft street-side; reverse-corner has a 25 ft street-side rule in the rear 25 ft); max residential height is 35 ft.

What are R-3 setback and height rules?

R-3 requires front setbacks of 45/60/70 ft from the street centerline (but never less than 15 ft from ROW), 5 ft side yards (10 ft street-side), and a 5 ft rear yard. Height is capped at 45 ft/4 stories.

How are commercial front setbacks measured in the unincorporated areas?

Most commercial districts (C-1, C-2, CO, CH) measure fronts from the legal centerline: 40 ft (local), 45 ft (secondary), 55 ft (major). Side yards are typically none; rears are often 20 ft with alley exceptions.

Do I need design review for a commercial or multifamily project?

Yes. Chapter 19.80 requires compliance with special development standards and a plot plan/design review before permits for most multifamily, commercial, and industrial projects in the unincorporated areas.

How do airport height limits affect my project?

Within the H (Airport Approach) combining district, height is generally limited to 35 ft unless otherwise approved; separate military airspace height concurrence can also apply countywide in protected areas.

Are there extra setbacks along section/midsection lines in the valley?

Yes. In the San Joaquin Valley portion below 1,000 ft elevation, permanent structures must be at least 45 ft from midsection lines and 55 ft from section lines.

What are the Kern River Corridor (KRC) limits?

Within KRC, keep at least 90 ft from the designated floodway (or use the 60% depth method), and cap building height at 35 ft within 200 ft of the floodway. Extra landscaping/trail standards may apply.

Does Kern County use FAR or lot coverage caps?

Title 19 defines lot coverage, but intensity is usually controlled by minimum lot area per dwelling and General Plan density. FAR standards were not found in the retrieved materials.

Can I install a small wind turbine on my rural lot?

Possibly. Small wind systems can be up to 120 ft tall, must meet setbacks (typically 65 ft from residential-zoned property lines or 30 ft elsewhere), and meet noise/lighting restrictions. A small wind permit is required.

How do ADU rules interact with Kern County standards?

State law guarantees at least an 800 sf ADU with 4 ft side/rear setbacks, even if local zoning is more restrictive. Use state ADU protections alongside applicable local development standards. See our California ADU law summary.

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