Dorris — Development Standards

Last reviewed: July 3, 2026

Overview

This page summarizes the Dorris municipal zoning rules that set development standards (setbacks, heights, lot coverage, density, and minimum distances) for each local zoning district. For on‑site parking requirements consult the Dorris Parking rules; where the zoning text defers to building technical standards it references the California Building Standards Code. This page interprets what the local ordinance actually requires — cite numbers and confirm with planning staff for parcel‑specific questions.

District‑by‑district standards

Below are the districts in the ordinance that contain discrete, codified development standards. Each district subsection gives purpose, typical permitted uses, and the key dimensional controls you need to check first. Every numeric standard below is pulled from the Dorris code and is cited to the controlling local §.

R-1 — Low Density Residential (Where it applies: neighborhoods designated Low Density Residential)

• Purpose / typical uses: single‑family homes, residential care homes, farmworker housing, small employee housing and the like; see permitted uses in § 18.20.020.
• Key dimensional standards (check these first):
  • Maximum building height: 35 ft for primary structures; 20 ft for accessory structures — § 18.20.060.
  • Maximum lot coverage: 35% for residential uses; 60% for nonresidential — § 18.20.060.
  • Minimum front setback: 20 ft — § 18.20.060.
  • Minimum rear setback: 10 ft (accessories 5 ft) — § 18.20.060.
  • Minimum side setbacks: interior 5 ft, exterior (corner) 15 ft — § 18.20.060.
  • Density: 1–7 du/acre — § 18.20.060.
• Notes: ADUs are allowed subject to the ADU chapter; see Accessory Dwelling Units (Chapter 18.104) and the Dorris ADUs page.

R-2 — Medium Density Residential (where it applies: parcels planned for low/medium residential intensity)

• Purpose / typical uses: duplexes, multifamily, employee and supportive housing; see § 18.24.020.
• Key dimensional standards:
  • Maximum building height: 45 ft (primary), 20 ft (accessory) — § 18.24.060.
  • Maximum lot coverage: 75% — § 18.24.060.
  • Front setback: 20 ft — § 18.24.060.
  • Rear setback: 10 ft (accessory 5 ft) — § 18.24.060.
  • Side setbacks: interior 5 ft, exterior 15 ft — § 18.24.060.
  • Density: typically 1–20 du/acre depending on exact subzone — § 18.24.060.

R-A — Rural/Agricultural (applies to larger agricultural parcels)

• Purpose / typical uses: single family on larger lots, limited agriculture, public/quasi‑public uses — see § 18.16.010–.050.
• Key dimensional standards:
  • Maximum building height: 35 ft; accessory 20 ft — § 18.16.060.
  • Maximum lot coverage: 20% (residential); 60% (nonresidential) — § 18.16.060.
  • Minimum parcel size: 1 acre; minimum width & depth requirements specified in § 18.16.050.

M-U — Mixed Use (central collector corridors and downtown nodes)

• Purpose / typical uses: mixture of residential and commercial uses; see permitted uses in § 18.32.020.
• Key dimensional standards:
  • Max height: 45 ft (primary), 20 ft (accessory) — § 18.32.060.
  • Max lot coverage: 75% — § 18.32.060.
  • Setbacks: residential front 10 ft; nonresidential/vertical mixed use may have no front setback — § 18.32.060.
  • Density range: 1–20 du/acre — § 18.32.060.

C-1 — Community Commercial (collector corridors; compatible with nearby homes)

• Purpose / typical uses: neighborhood‑serving retail and services, offices, small hospitality; see § 18.36.020.
• Key dimensional standards:
  • Max height: 45 ft; accessory 20 ft — § 18.36.060.
  • Max lot coverage: 75% — § 18.36.060.
  • Setbacks: residential uses 10 ft front; nonresidential/vertical mixed‑use may have no front setback — § 18.36.060.

C-2 — General Commercial (US‑97 corridor and more intensive commercial)

• Purpose / typical uses: auto‑oriented commercial, service stations, larger retail — see § 18.40.020.
• Key dimensional standards:
  • Max height: 45 ft; accessory 20 ft — § 18.40.060.
  • Max lot coverage: 75% — § 18.40.060.
  • Setbacks: similar to C‑1 (residential front 10 ft; nonresidential often 0 ft) — § 18.40.060.

M — Manufacturing / Industrial (where heavier industrial uses are intended)

• Purpose / typical uses: processing, wholesale, storage, manufacturing; see the CHAPTER 18.44 heading for permitted uses.
• Key dimensional standards: The code sets higher intensities but the exact section number for a consolidated development‑standards table for the M district is inconsistently numbered in the available materials (the chapter header appears as 18.44 while some snippets show 17.44.*). For this reason, quote specific numeric limits only after verifying the chapter on the adopted code web page or with planning staff. Verify with the jurisdiction. Not found in retrieved materials with an unequivocal § citation for every numeric item.

O‑S — Open Space (parks, resource protection)

• Purpose / typical uses: parks, passive/active recreation, public utilities — see § 18.48.020–.030.
• Key dimensional standards:
  • Max height: 35 ft — § 18.48.060.
  • Max lot coverage: 100% — § 18.48.060.
  • Setbacks: where adjacent to residential or mixed‑use zones the code requires 10 ft; none where adjacent to nonresidential — § 18.48.060.

P‑A — Public Agency (schools, government facilities)

• Purpose / typical uses: schools, clinics, government buildings — see § 18.52.020.
• Key dimensional standards:
  • Max height: 70 ft (all uses) — § 18.52.060.
  • Max lot coverage: 100% — § 18.52.060.
  • Setbacks: 10 ft where adjacent to residential/mixed‑use; none where adjacent to nonresidential — § 18.52.060.

P‑D / PRD — Planned Development / Residential Planned Development

• Purpose / typical uses: allows flexible, site‑specific standards across mixed projects; see § 18.56.010 and the special RPD chapter § 18.60.010–.060.
• Key rules and how they differ:
  • Prior to approval, default standards revert to the comparable conventional district standards (e.g., § 18.56.050(A) referencing Chapter 18.20) — § 18.56.050.
  • The RPD chapter lists parcel‑by‑parcel density and lot coverage targets (e.g., R‑L: 1–7 du/acre, max lot coverage 40%; R‑M: 1–12 du/acre, max lot coverage 50%; R‑H: 1–20 du/acre, max lot coverage 75%) — § 18.60.040 and § 18.60.060.
  • Planned developments must submit a development plan showing lot layout, setbacks, heights, parking, landscaping, and utility provisions — § 18.56.070.

Quick reference table — most decision‑relevant numeric standards

Notes: Off‑street parking minimums are set by Chapter 18.68 (Off‑Street Parking); consult the Dorris Parking page and Chapter 18.68 for space counts and configuration rules.

Checklist

An applicant should be prepared to demonstrate all of the following before building permits or project approvals will be issued:

• Confirm the property's zoning and applicable overlay(s) and verify permitted uses in that district (see district § listed above). Verify with planning staff.
• Verify front/rear/side setbacks, maximum height, and lot coverage against the district's development standards (the controlling § is cited in each district subsection above).
• Show required off‑street parking per Chapter 18.68 and the Dorris Parking rules.
• For site plans, show minimum distances between buildings as required by the California Building Standards Code (the zoning code repeatedly defers to the state building code for fire/clearance dimensions).
• If proposing an ADU, confirm compliance with Chapter 18.104 and state ADU laws; see Dorris ADUs.
• If your project is in a P‑D/PRD or includes subdivision, prepare a full development plan (site contours, utility, landscaping, parking, lot layout, heights) per § 18.56.070.
• Determine whether your project triggers design review or historic review and consult the Dorris Design Review and Historic Preservation pages.

Risks & Ambiguities

Plain‑English Summary

Most Dorris zones set simple, predictable dimensional rules: front yards of 10–20 ft for housing, maximum building heights commonly 35–45 ft (accessories 20 ft), and lot coverage limits ranging from 20% (rural lots) up to 75% in denser districts; parking and building separation are handled by separate off‑street parking and state building code rules. Always cross‑check the district § cited above for the parcel and verify overlay or planned‑development conditions with planning staff.

Source References

• Dorris Municipal Zoning Code excerpts (development standards by chapter): § 18.20.060 (R‑1)
• § 18.24.060 (R‑2)
• § 18.16.060 (R‑A)
• § 18.32.060 (M‑U)
• § 18.36.060 (C‑1)
• § 18.40.060 (C‑2)
• CHAPTER 18.44 (Manufacturing — header present; numeric standards need verification)
• § 18.48.060 (O‑S)
• § 18.52.060 (P‑A)
• § 18.56.050–.070 (P‑D procedures)
• § 18.60.040–.060 (RPD/PRD densities and standards)
• Off‑street parking reference: Chapter 18.68 (Off‑Street Parking) — check Dorris Parking and Chapter 18.68.
• Accessory Dwelling Units: Chapter 18.104 (ADUs); see Dorris ADUs.
• For building separation / technical clearance the ordinance defers to the California Building Standards Code.

Retrieved passages

• CBC § 18.84.190 (Section 18.84.190) High relevance show source text
• CBC § 18.84.190 (Section 18.84.190) High relevance show source text
• CBC § 100 (Chapter 18.68) High relevance show source text
• Dorris Zoning Code (section may) High relevance show source text
• CBC § 030 (Chapter 17.112) High relevance show source text
• Dorris Zoning Code (Title 16) High relevance show source text
• CBC § 18.84.190 (Section 18.84.190) High relevance show source text
• Dorris Zoning Code (CHAPTER 18.60) High relevance show source text

Cited sections

• Dorris Municipal Zoning Code excerpts (development standards by chapter): **§ 18.20.060** (R‑1) (§ 18.20.060)
• **§ 18.24.060** (R‑2) (§ 18.24.060)
• **§ 18.16.060** (R‑A) (§ 18.16.060)
• **§ 18.32.060** (M‑U) (§ 18.32.060)
• **§ 18.36.060** (C‑1) (§ 18.36.060)
• **§ 18.40.060** (C‑2) (§ 18.40.060)
• **CHAPTER 18.44** (Manufacturing — header present; numeric standards need verification) (CHAPTER 18.44)
• **§ 18.48.060** (O‑S) (§ 18.48.060)
• **§ 18.52.060** (P‑A) (§ 18.52.060)
• **§ 18.56.050–.070** (P‑D procedures) (§ 18.56.050)
• **§ 18.60.040–.060** (RPD/PRD densities and standards) (§ 18.60.040)
• Off‑street parking reference: Chapter **18.68 (Off‑Street Parking)** — check Dorris Parking and Chapter **18.68**.
• Accessory Dwelling Units: Chapter **18.104** (ADUs); see Dorris ADUs.
• For building separation / technical clearance the ordinance defers to the California Building Standards Code.
• Dorris_ZoningCode.md