Ukiah — Land Use

Last reviewed: July 6, 2026

Overview

Ukiah regulates land use through its zoning ordinance in the Ukiah City Code, Chapter 2 (zoning districts, permitted/conditional uses, and dimensional standards). What you can build, where, and at what intensity is determined by your base zoning district (e.g., R-1, C-2, M) and, inside downtown, by the Downtown Zoning Code districts (GU, UC, DC). Specific uses may be allowed by right, require a minor/major use permit, or be prohibited.

If a use isn’t listed, Ukiah lets staff decide if it fits the zone, either as allowed or with a use permit, using similarity and compatibility findings. See § 9023 (R‑1), § 9038 (R‑2), § 9102 (C‑2), and Downtown § 9223(C).

Linking related topics:

• For the citywide framework, start at the Ukiah zoning & planning overview and the detailed Ukiah Zoning map/labels.
• Dimensional rules beyond this page live under Ukiah Development Standards, while off‑street supply and design are in Ukiah Parking.
• Many projects trigger Ukiah Design Review and may sit in mapped Ukiah Overlay Districts, including Airport influence areas referenced below.
• Accessory units follow their own rules; see Ukiah ADUs.

District-by-District Land Use

R-1 — Low Density Residential

• Purpose and where it applies: Protects predominantly single-family neighborhoods; consistent with General Plan LDR and RR. § 9015.
• Typical allowed uses by right: Single-family dwellings, duplex, ADUs/JADUs, small/large family daycare, community care (≤6), supportive/transitional housing, beekeeping, community gardens. § 9016.
• Uses with a permit: Schools, B&Bs, churches, community care (7–12), “mom and pop” grocery, some multifamily if not meeting design standards, outdoor sales (limited), recreation/civic. § 9017.
• Key dimensional standards:
  • Height: 30 ft for main dwellings; 20 ft for nonresidential accessory. § 9018.
  • Minimum lot area/width: Interior 4,500 sf/40 ft; corner 6,000 sf/60 ft. § 9019.
  • Setbacks: Front 10 ft; sides 5 ft; rear 10 ft for residences (5 ft for accessory); special encroachments allowed (e.g., eaves 2 ft). § 9020.
• Notes: Airport compatibility may further limit development in influence areas. § 9022(C).

R-2 — Medium Density Residential

• Purpose and where it applies: Provides a range of medium-density housing and compatible civic/small office uses; consistent with General Plan MDR. § 9030.
• Typical allowed uses by right: Single-family and multifamily (when meeting R‑2 design standards), ADUs/JADUs, daycare, community care (≤6), supportive/transitional housing, community gardens. § 9031.
• Uses with a permit: Schools, B&Bs, churches, community care (7–12), professional office, rest homes/convalescent facilities, certain multifamily configurations not meeting by-right standards. § 9032.
• Key dimensional standards:
  • Height: 35 ft main; 20 ft accessory (or main height, whichever is less). § 9033.
  • Minimum site area: None. § 9034.
  • Setbacks: Front 10 ft; sides 5 ft; rear 10 ft; special corner-lot frontages apply. § 9035.
• Notes: Airport compatibility policies may apply. § 9037(D).

R-3 — High Density Residential

• Purpose and where it applies: Higher-density residential and low-intensity commercial as a transition near commercial corridors; consistent with General Plan HDR. § 9045.
• Typical allowed uses by right: Multiple-family dwellings (meeting design standards), single‑family, ADUs/JADUs, daycare, community care (≤6), supportive/transitional housing, community gardens. § 9046.
• Key dimensional standards: Not found in retrieved materials.
• Conditional uses: Not found in retrieved materials.

C-N — Neighborhood Commercial

• Purpose and where it applies: Low-intensity neighborhood-serving retail/professional uses and compatible residential at up to 15 du/ac; excludes big-box/highway-serving uses. § 9060.
• Typical allowed uses by right: Professional/medical offices, small grocery/delicatessen, personal services, outdoor dining, single-family and multifamily (per standards), ADUs/JADUs, specialty food/beverage tastings, community gardens; Planning Director may allow similar uses. § 9061.
• Key dimensional standards:
  • Height: 35 ft main; 20 ft accessory; taller with use permit. § 9063.
  • Minimum site area: Commercial: 7,000 sf, 70 ft width; Residential/mixed: none. § 9064.
  • Setbacks/yards: Front 10 ft (15 ft at second story for multi‑story); sides 5 ft; rear 10 ft. §§ 9065–9066.

C-2 — Heavy Commercial

• Purpose and where it applies: Commercial services/wholesale/auto-oriented uses; encourages integration of multifamily. § 9095.
• Typical allowed uses by right: Construction sales/service, cabinet/sign/machine shops, auto sales/repair, warehousing (limited), community gardens, outdoor dining/sales (limits), and by-right multifamily that meets residential design standards; ADUs/JADUs allowed. § 9096.
• Uses with a permit: Broad range including cannabis operations (retailer, manufacturer, testing, etc.). § 9097.
• Key dimensional standards:
  • Height: 50 ft primary; 30 ft accessory; taller by use permit. § 9098.
  • Yards: Front 5 ft; sides/rear none unless abutting R‑1/R‑2/R‑3, then match adjoining yard. § 9099.
• Other requirements: Site development permit and landscaping plan often required for non-residential or non-by-right projects. § 9101.

M — Manufacturing

• Purpose and where it applies: Implements General Plan industrial policies. § 9110.
• Typical allowed uses by right: Wholesale/storage, light/heavy industrial uses with no appreciable nuisance factors, outdoor sales/display, community gardens; accessory uses. § 9111.
• Uses with a permit: More intensive industry and a broad range of commercial/cannabis uses, plus hotels/motels and mobile home parks. § 9112.
• Key dimensional standards:
  • Height: 50 ft max. § 9113.
  • Minimum site area: 7,000 sf per main building. § 9114.
  • Yards: None required (front yard added on corners; residential adjacency triggers residential yards). § 9115.

Downtown Zoning Code — General Urban (GU), Urban Center (UC), Downtown Core (DC)

• Applicability and where it applies: Within the mapped Downtown Zoning Code (DZC) area; DZC controls if conflicts arise with the citywide ordinance. §§ 9221–9222.
• Allowed uses and permits: Uses are set by DZC Table 3 with permit tiers: A (allowed), MIUP (minor use permit), MAUP (major use permit), AC (accessory), or “–” (prohibited). Example: drive‑through restaurants are prohibited; drive‑up bank/pharmacy only accessory in GU/UC, not in DC. § 9223 and Table 3.
• Development intensity (selected): Minimum/maximum residential densities and lot coverage by zone come from Table 4 in § 9225:
  • GU: Min 10 du/ac, Max 28 du/ac; lot coverage up to 70%.
  • UC: Min 15 du/ac, Max 28 du/ac; lot coverage up to 80%.
  • DC: Min 15 du/ac, Max 28 du/ac; lot coverage up to 90%.
• Height/setbacks format: Measured by stories; standards vary by building type (Tables 6–7), with airport height limits possibly superseding. § 9225.4–.5.
• Civic/open space typologies: Squares, plazas, playgrounds are allowed; parks/greens are prohibited in DZC zones. Table 2.

O-S — Open-Space

• Purpose and where it applies: Conserves natural resources, limits development on constrained lands; consistent with Open‑Space/Public/Agriculture/Recreational designations. § 9140.
• Allowed/permit uses: Conservation, habitat restoration, agriculture (limited), rewilding, trails; campgrounds and education/interpretive facilities may require a use permit. §§ 9142–9143.
• Key dimensional standards:
  • Height: 25 ft primary; 15 ft accessory (with limited public-safety exceptions). § 9144.
  • Site area: No minimum, but intensity must fit O‑S purpose. § 9145.
  • Setbacks: 100 ft minimum from creeks/wetlands/sensitive habitat; added visual and slope protections. § 9146.

PF — Public Facilities

• Purpose: Public/quasi-public and specified utility sites; creates opportunities for airport‑related business uses. § 9170.
• Typical allowed uses: Airports and aviation functions, civic centers, parks/recreation, public schools, utilities, community gardens, specialty food/beverage tastings; accessory/incidental uses. § 9170.1.
• Permit uses: Includes certain cannabis operations. § 9170.2.

PD — Planned Development Combining Zone

• What it does: A combining zone that may overlay any base district to enable a negotiated plan and flexibility from standard zoning to achieve better site planning and amenities. §§ 9165–9166.
• Process basics: Requires concept/precise development plans stating land use mix, densities/intensities, setbacks, heights, phasing, and maintenance provisions; three‑year expiration unless extended. §§ 9167–9169.

Selected Land Use and Dimensional Standards (snapshot)

Notes:

• Outdoor sales/display are time‑limited by right in all commercial and M districts; longer durations or residential districts require an administrative permit with specific standards. § 9382.
• Downtown civic space types are controlled; parks/greens are prohibited, while squares/plazas/playgrounds are allowed. Table 2.
• Some districts explicitly allow residential by right when projects meet multi‑family design standards referenced elsewhere in the code; otherwise a permit is required. See R‑2 § 9031, C‑2 § 9096.

Practical guidance and crosswalks

• ADUs are expressly allowed in residential zones and even in C‑2; separate ADU standards govern height/parking/setbacks and can supersede base‑zone limits in places. See Ukiah ADUs and note R‑1 § 9016, C‑2 § 9096, ADU chapter e.g., § 9056.3 (setbacks) and ADU height framework.
• Inside downtown, always verify if your frontage/lot type triggers a specific building form or frontage standard in § 9225; many entitlements there go through DZC‑specific processes and Ukiah Design Review.
• Airport overlays may cap heights/set forms; R‑1/R‑2 and DZC tables reference the Ukiah/Mendocino Airport plans. Check Ukiah Overlay Districts. R‑1 § 9022(C); DZC § 9225.4 notes.
• Landscape/parking plans can be required for commercial and mixed‑use; see § 9101 (C‑2) and DZC § 9228 cross‑referenced in § 9221(F), plus Ukiah Parking and Ukiah Landscaping and Screening.
• For signs and legacy sites: see Ukiah Signage and Ukiah Nonconforming Uses.

Checklist

• Identify your base zoning district (R‑1, R‑2, R‑3, C‑N, C‑2, M, O‑S, PF) or DZC zone (GU/UC/DC).
• Confirm whether your proposal is listed as Allowed, MIUP, MAUP, Accessory, or Prohibited in your district’s use list or (for downtown) Table 3.
• Check dimensional controls: maximum height, minimum lot area/width, and setbacks.
• Verify any overlay constraints (e.g., airport influence) that may supersede base limits.
• If your use isn’t listed, prepare findings for a “use not listed” determination. § 9023, § 9038, § 9102, § 9223(C).
• For mixed‑use or residential in commercial districts, confirm by‑right eligibility versus permit thresholds and related Ukiah Development Standards.
• Coordinate early on Ukiah Design Review, Ukiah Parking, and any Ukiah Variances and Exceptions that may be needed.

Risks & Ambiguities

Plain-English Summary

Ukiah assigns every parcel to a zoning district, and each district has a list of what uses are allowed, what need permits, how tall you can build, and how far buildings must sit from property lines. In the downtown area a special code sets both the uses and the form of buildings. If your idea isn’t listed, the City can still approve it if it’s similar and compatible with your zone.

Source References

• Residential districts: § 9015–§ 9023 (R‑1); § 9030–§ 9038 (R‑2); § 9045–§ 9053 (R‑3).
• Commercial districts: § 9060–§ 9069 (C‑N); § 9095–§ 9102 (C‑2).
• Industrial district: § 9110–§ 9117 (M).
• Downtown Zoning Code: § 9221–§ 9226 (zones/uses/forms), Table 3 (uses), Table 4 (site standards).
• Open‑Space: § 9140–§ 9149.
• Public Facilities: § 9170–§ 9170.8.
• Citywide specific‑use standards (examples): § 9382 Outdoor Sales/Display.

Retrieved passages

• Ukiah Zoning Code (§1) High relevance show source text
• Ukiah Zoning Code (§2) High relevance show source text
• Ukiah Zoning Code (§1) High relevance show source text
• Ukiah Zoning Code (§2) High relevance show source text
• Ukiah Zoning Code (§5) High relevance show source text
• Ukiah Zoning Code (§2) High relevance show source text
• Ukiah Zoning Code (section 9231) High relevance show source text
• Ukiah Zoning Code (Article 20) High relevance show source text
• Ukiah Zoning Code (§9222) High relevance show source text
• Ukiah Zoning Code (§9095) High relevance show source text
• Ukiah Zoning Code (Chapter 2) High relevance show source text
• Ukiah Zoning Code (§9006) Medium relevance show source text
• Ukiah Zoning Code (section 9278) High relevance show source text
• Ukiah Zoning Code (§2) Medium relevance show source text
• Ukiah Zoning Code Medium relevance show source text
• Ukiah Zoning Code (§1) Medium relevance show source text

Cited sections

• Residential districts: **§ 9015–§ 9023 (R‑1)**; **§ 9030–§ 9038 (R‑2)**; **§ 9045–§ 9053 (R‑3)**. (§ 9015)
• Commercial districts: **§ 9060–§ 9069 (C‑N)**; **§ 9095–§ 9102 (C‑2)**. (§ 9060)
• Industrial district: **§ 9110–§ 9117 (M)**. (§ 9110)
• Downtown Zoning Code: **§ 9221–§ 9226** (zones/uses/forms), Table 3 (uses), Table 4 (site standards). (§ 9221)
• Open‑Space: **§ 9140–§ 9149**. (§ 9140)
• Public Facilities: **§ 9170–§ 9170.8**. (§ 9170)
• Citywide specific‑use standards (examples): **§ 9382 Outdoor Sales/Display**. (§ 9382)
• Ukiah_ZoningCode.md