Mount Shasta — Zoning

Last reviewed: July 3, 2026

Overview

Mount Shasta’s zoning rules are organized in the Municipal Code under the land development / zoning chapters: the city lists base zones, tables of permitted and conditional uses, and development standards in § 18.12.020 and § 18.16.020 and maintains an official zoning map through the Planner in § 18.16.060. This page summarizes what each Mount Shasta district actually allows on the ground (purpose, typical permitted uses, and the most decision‑relevant dimensional standards) and points you to the code sections to verify specifics. For site-level items you’ll commonly need to check the city’s development standards, off‑street parking, and whether a project triggers design review or overlay rules.

How to read this page

• Every numeric requirement below is grounded in the Mount Shasta Municipal Code and cites the controlling code section (§).
• For map location questions see the official zoning map rules at § 18.16.060 (verify with the Planner).
• If you need the city's objective numeric design rules, consult the Mount Shasta Development Standards and the city's parking rules at Mount Shasta Parking.

District-by-district breakdown (what the code actually says)

All district rules and the land‑use tables are collected under § 18.16.020; the list of base zones is in § 18.12.020. Use these citations to find the full tables in the code.

Note: Each district entry below uses the Municipal Code language for the district name (example: R-1, C-2) and summarizes purpose, common permitted uses, and the key dimensional standards the code sets. For parcel‑specific boundaries see § 18.16.060 and the official zoning map.

Resource Lands (R-L)

• Purpose: Intended for lands suitable for managed production of natural resources (agriculture, timber, resource production). § 18.16.020.
• Typical permitted uses: single‑family residences, greenhouses, landscape nurseries; many resource and agricultural activities allowed as conditional uses. See the R‑L land‑use table in § 18.16.020.
• Key dimensional standards: maximum residential density: one dwelling unit per 10 acres; minimum parcel size: 0.5 acre; setbacks: front 20 ft, rear 30 ft, side yards 30 ft; max building height 35 ft; lot coverage for residences 10% (nonresidential up to 25% by plot plan). See § 18.16.020 (Table 1).
• Where it applies: Mapped by the Planner on the official zoning map per § 18.16.060.

Low Density Residential, 10,000 Minimum (R1/B1)

• Purpose: Very low density single‑family lots (reflects older large lot neighborhoods). § 18.16.020 (Table 3).
• Permitted uses: single‑family dwelling, model homes; supportive and transitional housing listed. § 18.16.020 (Table 3).
• Key standards: **max density 4 dwelling units/acre; minimum parcel: 10,000 sq ft; front setback 25 ft, rear 10 ft, side 10 ft; max height 35 ft; lot coverage 45%. § 18.16.020.

Low Density Residential (R-1)

• Purpose: Detached single‑family suburban lots. § 18.16.020 (Table 4).
• Permitted uses: single‑family dwelling, model homes (and housing types listed such as supportive/transitional housing).
• Key standards: max density 6 du/acre; minimum parcel: 6,000 sq ft (7,000 sq ft corner); setbacks front 20 ft / rear 10 ft / combined side 10 ft (min one side 4 ft); max height 35 ft; lot coverage 40%. § 18.16.020.
• Special rule: Short‑term rentals are prohibited in the R-1 zone (see § 18.16.040).

Low Density Residential Urban (R-1‑U)

• Purpose: Slightly higher intensity suburban neighborhoods with urban lot patterns. § 18.16.020 (Table 5).
• Key standards: **max density 9 du/acre; front setback 10 ft (garage facing street: 20 ft); rear 10 ft; combined side 10 ft; height 35 ft; lot width 50 ft; lot coverage 50%. § 18.16.020.

Medium Density Residential (R-2)

• Purpose: Flexibility for duplexes and small multi‑unit designs. § 18.16.020 (Table 6).
• Permitted uses: single‑family (attached or detached), duplex, triplex, multiple‑family units, supportive/transitional housing. § 18.16.020.
• Key standards: **max density 10 du/acre; setbacks: front 10 ft (garages 20 ft if facing street), rear 10 ft (5 ft for alley parking), combined side 10 ft; height 35 ft; lot width 60 ft; lot coverage 55%. § 18.16.020.

High Density Residential (R-3)

• Purpose: Apartments, townhouses, the highest residential intensity. § 18.16.020 (Table 7).
• Permitted uses: single‑family (smaller lot), duplex, triplex, multiple‑family dwellings, professional offices (limited size), supportive/transitional housing, emergency shelters. § 18.16.020.
• Key standards: **max density 20 du/acre; setbacks front 20 ft (10 ft when alley parking), rear 10 ft (5 ft for alley parking), combined side 10 ft; max height 45 ft; lot coverage 65%. § 18.16.020.

Downtown Commercial (C-1)

• Purpose: Highest intensity commercial activity in the downtown core. § 18.16.020 (Table 8).
• Permitted uses: Stores, restaurants, offices, theaters, residential uses consistent with R-3 when appropriate, emergency shelters. § 18.16.020.
• Key standards: **residential density up to 20 du/acre; commercial lot coverage up to 100%; building heights up to 45 ft; new lot minimums (see table). Setbacks for mixed-use/commercial buildings are generally no requirement. § 18.16.020.

General Commercial (C-2)

• Purpose: Retail and service uses outside downtown. § 18.16.020 (Table 9).
• Permitted uses: All C-1 uses plus broader retail, light industrial services (auto service, laundries, etc.), and emergency shelters. § 18.16.020.
• Key standards: **residential up to 20 du/acre; commercial lot coverage 100%; max height 45 ft; new lot width 50 ft (existing may be less); setbacks for residential-as-part-of-commercial generally no requirement. § 18.16.020.

Employment Center (E‑C)

• Purpose: Modern replacement for industrial zones — employment, manufacturing, warehousing and similar uses with employee traffic rather than walk‑in customers. § 18.16.020 (Table 10).
• Permitted uses: professional/service offices, light manufacturing/warehouse (size limits usually ≤10,000 sq ft for non‑hazardous uses unless conditioned), accessory residential to manufacturing, limited high‑impact uses subject to conditional use review. § 18.16.020.
• Key standards: **maximum lot coverage 75%; no minimum parcel size; no standard setback requirements (front/rear/side: no requirement); maximum building height 45 ft. § 18.16.020.

Planned Development (P‑D)

• Purpose: Allows customized development plans, mixed use, clustering, and deviations from base district standards where findings support them. § 18.16.020 (Table 11).
• How it works: The base district uses remain available, but the P‑D plan may approve deviations from density, setbacks, heights, and other standards when the required findings are made; minimum P‑D parcel size: two acres (unless otherwise specified). § 18.16.020.

Public (P), Open Space (OS), and Unclassified (U)

• The code lists P, OS, and U as base zones in § 18.12.020, but detailed development standards or permitted uses for these districts are not in the retrieved snippets. For the official definitions and any special performance standards consult the Municipal Code tables and the Planner. Not found in retrieved materials for full tables.

Quick standards table (most decision‑relevant at a glance)

(For full permitted/conditional/ accessory use lists and all subitems consult § 18.16.020 tables in the code.)

Checklist — what an applicant must verify before submitting

• Identify the parcel’s official zoning on the city’s map (city Planner maintains the official map per § 18.16.060) and confirm the district.
• Confirm whether the proposed use is listed as permitted (P), conditional or not allowed in § 18.16.020 tables for that district (use the district table for permitted/conditional uses).
• Check setbacks, height, lot coverage, lot width and minimum parcel size specified in the district table in § 18.16.020.
• Confirm parking requirements (off‑street parking is referenced to the district intent and city parking rules) — consult the city parking rules at Mount Shasta Parking.
• Determine whether design review or additional site design standards apply and prepare elevations/site plans accordingly — see Mount Shasta Design Review. Verify objective standards in the Development Standards.
• If the property is nonconforming, read nonconforming uses/structures rules before altering (see Chapter § 18.24.020–.060).
• If you need relief from numeric standards, evaluate the variance process and findings in Chapter § 18.28.
• For emergency shelters, note they are permitted in R‑3, C‑1, and C‑2 and must meet the standards in Chapter § 18.98.

Risks & Ambiguities

Plain-English summary

Mount Shasta’s zoning organizes parcels into base zones (R‑1, R‑2, R‑3, C‑1, C‑2, E‑C, R‑L, P‑D, etc.) with clear tables that state what you may build or operate and the basic numeric development rules (setbacks, height, lot coverage, and minimum parcel sizes) — all collected under § 18.12.020 and § 18.16.020. Always pull the official zoning map from the Planner (the map controls) and check chapters on nonconforming uses and variances if your site is irregular or needs relief.

Source References

• Base zoning districts and list (base zone names): § 18.12.020.
• District regulations and the detailed use/standard tables: § 18.16.020 (Tables 1–11 for R‑L, R1/B1, R‑1, R‑1‑U, R‑2, R‑3, C‑1, C‑2, E‑C, P‑D).
• Official zoning map maintenance: § 18.16.060.
• Uncertainty of zone boundaries: § 18.16.070.
• R‑1 short‑term rental prohibition: § 18.16.040.
• Nonconforming uses, lots, and structures: § 18.24.020–.060.
• Variance purpose and procedures: Chapter 18.28 (see § 18.28.010).
• Employment Center (E‑C) standards and uses: § 18.16.020 (Table 10).
• Downtown and General Commercial tables (C‑1, C‑2): § 18.16.020 (Tables 8–9).
• Emergency shelter siting and standards: Chapter 18.98 (esp. § 18.98.020).

Relevant city pages (use these operational pages when the code instructs you to consult local standards):

• Mount Shasta zoning & planning overview: Mount Shasta zoning & planning overview
• Development standards: Mount Shasta Development Standards
• Parking: Mount Shasta Parking
• Design review: Mount Shasta Design Review
• Overlay Districts: Mount Shasta Overlay Districts
• ADUs: Mount Shasta ADUs
• State building code reference: California Building Standards Code
• State ADU guidance: California ADU law

Retrieved passages

• CFC § 1501 (§ 1501.) High relevance show source text
• CFC § 11362.1 (§ 11362.1) High relevance show source text
• CFC § 020 (Chapter 18.70) High relevance show source text
• CFC § 020 High relevance show source text
• CBC § 060 (section shall) High relevance show source text
• Mount Shasta Zoning Code (§ 65915.) High relevance show source text
• Mount Shasta Zoning Code (§ 61) High relevance show source text
• Mount Shasta Zoning Code (Chapter 18.16) High relevance show source text
• CFC § 500 (section of) High relevance show source text
• CFC § 000 High relevance show source text
• CFC § 020 High relevance show source text
• CFC § 020 High relevance show source text
• CFC § 100 (Chapter 18.70) High relevance show source text
• CFC § 020 High relevance show source text
• CFC § 500 High relevance show source text

Cited sections

• Base zoning districts and list (base zone names): **§ 18.12.020**. (§ 18.12.020)
• District regulations and the detailed use/standard tables: **§ 18.16.020** (Tables 1–11 for R‑L, R1/B1, R‑1, R‑1‑U, R‑2, R‑3, C‑1, C‑2, E‑C, P‑D). (§ 18.16.020)
• Official zoning map maintenance: **§ 18.16.060**. (§ 18.16.060)
• Uncertainty of zone boundaries: **§ 18.16.070**. (§ 18.16.070)
• R‑1 short‑term rental prohibition: **§ 18.16.040**. (§ 18.16.040)
• Nonconforming uses, lots, and structures: **§ 18.24.020–.060**. (§ 18.24.020)
• Variance purpose and procedures: **Chapter 18.28** (see **§ 18.28.010**). (Chapter 18.28)
• Employment Center (E‑C) standards and uses: **§ 18.16.020 (Table 10)**. (§ 18.16.020)
• Downtown and General Commercial tables (C‑1, C‑2): **§ 18.16.020 (Tables 8–9)**. (§ 18.16.020)
• Emergency shelter siting and standards: **Chapter 18.98** (esp. **§ 18.98.020**). (Chapter 18.98)
• Mount Shasta zoning & planning overview: Mount Shasta zoning & planning overview
• Development standards: Mount Shasta Development Standards
• Parking: Mount Shasta Parking
• Design review: Mount Shasta Design Review
• Overlay Districts: Mount Shasta Overlay Districts
• ADUs: Mount Shasta ADUs
• State building code reference: California Building Standards Code
• State ADU guidance: California ADU law
• MountShasta_ZoningCode.md
• 2025 California ADU handbook.md