Calimesa — Zoning

Last reviewed: July 3, 2026

Overview

Calimesa’s zoning code (the city’s zoning title) establishes zone districts, an official zoning map, and district-specific use and development rules to implement the general plan and control land use intensity within city limits. The list of city zone districts is codified in § 18.05.080 and the official zoning map is made part of the code and kept on file with the city clerk and planning department per § 18.05.090–§ 18.05.100 . Use, dimensional standards, and overlay rules are scattered across chapters (for example, residential districts in Chapter 18.20, downtown in Chapter 18.39, and special districts/overlays in Chapter 18.40) and must be read together for parcel‑specific decisions .

Note on related topics: the city’s zoning regulations tie into separate rules for development standards, parking, design review, overlay districts, and accessory dwelling units (ADUs); building‑permit technical rules are enforced through the California Building Standards Code.

How the code is organized (quick map)

• Zones are listed in § 18.05.080; the official zoning map and its interpretation rules are in § 18.05.090–§ 18.05.120 .
• Residential zone regulations and the residential uses table are in Chapter 18.20 (see § 18.20.010, § 18.20.030, § 18.20.040) .
• Downtown business district is Chapter 18.39 (DVC, DNC, DVS + Calimesa Creek overlay) and contains downtown‑specific use/standards tables and design guidance (see § 18.39.010–§ 18.39.045) .
• Special districts / overlays (PRD, P/Q, Calimesa Creek Overlay) appear in Chapter 18.40; the Calimesa Creek Overlay standards are in § 18.40.030 .
• Development plan and design review procedures are in Chapter 18.90; minor development review items (including ADUs) are listed in § 18.90.030 .

District-by-district breakdown

Below are the districts listed in § 18.05.080 (each subsection summarizes the code intent/uses/standards and cites the controlling chapter/section). For full permitted‑use tables and numeric standards see the cited sections.

Open Space Residential — O-S-R

• Purpose: Low‑impact residential on open land; ties to open space policy (Chapter 18.20/residential rules apply where noted). See § 18.20.010 for residential purposes and § 18.20.040 for residential standards as applied to O-S-R .
• Typical permitted uses: single‑family dwellings, limited accessory uses; see residential uses table § 18.20.030 .
• Key dimensional standards (where shown in Table 18.20.040): minimum lot size 10 acres, minimum front yard 35 ft, and height limit 32 ft or two stories (whichever is less) — see § 18.20.040 .
• Where it applies: specified on the official zoning map; boundary questions resolved per § 18.05.120 .

Residential Estate — R-E

• Purpose & uses: larger‑lot residential; permitted uses and accessory units follow the residential uses table § 18.20.030 .
• Key standards: minimum lot size 5 acres, front setback 35 ft, heights as in Table 18.20.040 (see § 18.20.040) .

Rural Residential — R-R

• Purpose & uses: rural residential with limited density; uses per § 18.20.030.
• Key standards: minimum lot size 20,000 s.f., front setback 30 ft (Table 18.20.040) .

Residential Low — R-L

• Purpose & uses: typical single‑family neighborhood density; accessory and ADUs allowed per § 18.20.030 (ADUs specifically shown as permitted) .
• Key standards: minimum lot size 7,200 s.f., front setback 20 ft, lot width 70 ft (Table 18.20.040) .

Residential Low/Medium — R-L‑M

• Purpose & uses: transitional density between low and medium; ADUs permitted; see § 18.20.030 and § 18.20.040 for numeric standards (lot size 6,000 s.f., front setback 20 ft) .

Residential Medium — R‑M

• Purpose & uses: multi‑family and moderate density residential; uses table lists conditional/permitted multi‑family and care facilities in § 18.20.030 .
• Key standards: minimum lot size 6,000 s.f., front setback 20 ft, density values appear in Table 18.20.040 (max density 14 du/ac) .

Residential High — R‑H

• Purpose & uses: higher density residential; multi‑family uses regulated in § 18.20.030.
• Key standards: minimum lot size 6,000 s.f., front setback 20 ft, maximum density 20 du/ac (Table 18.20.040) .

Residential Infill Priority Area Overlay Zone — RIPAOZ

• Purpose: an overlay to promote infill housing and minimum densities (see overlay provisions in Chapter 18.20 and overlay rules) .
• Key rules: overlay requires developments to permit at least 16 units per site and minimum density 20 units per acre where applicable; if overlay and base zone conflict, specific overlay rules in the code govern how to reconcile standards — see § 18.20.020 and related overlay text for precedence rules .

Neighborhood Commercial — C‑N, Community Commercial C‑C, Regional Commercial C‑R, Office Professional O‑P

• Purpose & uses: commercial/office categories tailored by scale/type; use lists and procedures are contained in Chapter 18.25 (use tables/approval types) — see § 18.05.080 and Chapter 18.25 references in the code listing .
• Key standards: specific commercial dimensional and parking standards are in Chapters 18.25 and 18.45 (parking) — consult those chapters for setback, lot coverage, and parking ratios (not all numeric commercial standards are reproduced in the retrieved snippets) .

Mixed‑Use Zones — R‑MU, C‑MU, O‑MU (Chapter 18.28)

• Purpose: allow horizontal and vertical mixing of residential, commercial and office uses with development rules in Chapter 18.28; minor/major development review may apply and concept plans may be required under § 18.90.030 .

Light Industrial — L‑I and Business Park — B‑P (Chapter 18.30)

• Purpose & uses: industrial and business‑park uses (manufacturing, warehousing, office‑park); Chapter 18.30 contains use and development standards; parking and loading rules in Chapter 18.45 apply .

Open Space — O‑S (Chapter 18.35)

• Purpose & uses: parks, trails, wildlife preserves, public utilities; permitted uses listed in § 18.35.020 (public buildings, trails, wildlife preserves permitted; some uses conditional) .
• Key note: precise development in O‑S requires slope and biological analysis before approval per § 18.35.020 notes .

Downtown Business District — DVC, DNC, DVS (Chapter 18.39)

• Purpose: create a pedestrian‑oriented downtown core with distinct subzones (Downtown Village Commercial DVC, Downtown Neighborhood Commercial DNC, Downtown Visitor‑Serving DVS) and design/street guidelines; applies to properties shown on the official map and downtown chapter controls where it expressly conflicts with other zoning rules (see § 18.39.010–§ 18.39.030) .
• Uses and development standards are in Tables and sections within Chapter 18.39 (see § 18.39.045 and Table 18.39.050) .

Planned Residential Development — PRD, Public/Quasi‑Public — P/Q, Calimesa Creek Overlay — CCO (Chapter 18.40)

• Purpose and application: PRD and P/Q have site‑specific standards and the CCO adds creekfront design and public‑access expectations; the Calimesa Creek Overlay requires buildings to address creek frontage and preserve a natural creek appearance in redevelopment § 18.40.030 .

Decision‑relevant quick table (selected residential standards and references)

(These figures are drawn from Table 18.20.040 and the residential uses table in § 18.20.030; consult the full chapter for notes and exceptions) .

Practical guidance / code interpretation notes

• The official zoning map is part of the code; when boundaries are unclear the map rulebook (street/lot lines, assessor parcel map and the planning commission’s written determination) governs — see § 18.05.120 for interpretive rules and § 18.05.110 for map amendment/recording procedures .
• Overlay zones can impose minimum densities (for example RIPAOZ requires minimum 20 du/acre in some cases and 16 units per site) and may change which standards apply — see the RIPAOZ provisions in Chapter 18.20 and the overlay precedence rules in the RIPAOZ text .
• Downtown rules in Chapter 18.39 expressly control over duplicative or conflicting provisions in the zoning code for properties in that district; if the downtown chapter is silent the general zoning code applies (§ 18.39.030) .
• Accessory dwelling units are permitted in residential zones per the residential uses table and are explicitly listed among items that may be processed through minor development plan review § 18.20.030 and § 18.90.030(9); ADU proposals must still satisfy zoning setbacks and development standards unless state ADU law (or specific code exceptions) override (see local ADU rules and California ADU law) .
• Design review and development plan review are required for many proposals; minor/major development thresholds and what requires a plan are in § 18.90.030 (minor development examples include single‑family permits, accessory buildings under 1,200 s.f., signs, ADUs) .

Checklist

An applicant should verify and attach the following before submitting a zoning/concept application:

• Confirm parcel zoning on the official zoning map and note any overlay (RIPAOZ, CCO, downtown) per § 18.05.080–§ 18.05.100 .
• Confirm permitted uses and approval type (P, C, or X) for the base zone and any overlay (see Chapter 18.20, 18.25, 18.28, 18.39, 18.40) .
• Prepare site plan showing compliance with dimensional standards (setbacks, lot coverage, heights) from Table 18.20.040 or the appropriate chapter for non‑residential zones § 18.20.040 .
• Calculate off‑street parking requirements and show parking layout per Chapter 18.45 (parking requirements and handicap rules) .
• Determine whether proposal needs minor or major development plan review (Chapter 18.90) and include design elevations where required § 18.90.030 .
• If within an overlay (RIPAOZ or CCO) show how overlay minimum density/design rules are met (see overlay sections in Chapters 18.20, 18.40) .
• For setbacks/lot‑line uncertainties have assessor parcel map and a statement of boundary interpretation ready (per § 18.05.120) .
• If relying on nonconforming use or structure rules, review § 18.15.120 and include documentation of legal nonconforming status (if applicable) .

Risks & Ambiguities

Plain‑English summary

Calimesa’s zoning code divides the city into named districts (residential tiers, commercial types, mixed‑use, industrial, downtown and overlays) listed in § 18.05.080; each district’s uses and standards live in the chapters named for them (notably Chapters 18.20, 18.25, 18.28, 18.30, 18.35, 18.39, and 18.40). Check the official zoning map, the permitted‑uses table for the district, applicable overlay language (RIPAOZ, CCO, downtown), and the applicable development standards table before preparing an application — and plan for design/development plan review per § 18.90.030 .

Information Gaps

• The retrieved materials include residential numeric standards (Table 18.20.040) but the full numeric development standards for all commercial, mixed‑use, and industrial zones (Chapters 18.25, 18.28, 18.30) are not fully visible in the provided snippets. Verify those chapters directly with the full municipal code or planning staff — Not found in retrieved materials .
• Detailed parking ratios and loading standards referenced in Chapter 18.45 are listed in the code index but the exact numeric tables were not present in the snippets shown — Not found in retrieved materials .
• Any parcel‑specific interpretations (e.g., exact lot lines, easements or slope constraints) require the official zoning map and local staff sign‑off — Verify with the jurisdiction per § 18.05.120 .

Source References

• Code title and purpose: § 18.05.010–§ 18.05.040 (Zoning title; code authority and applicability) .
• Zones established (list of zone symbols and chapter references): § 18.05.080 .
• Official zoning map rules and filing: § 18.05.090–§ 18.05.110 (map is part of code; kept with city clerk/planning) .
• Zoning map interpretation rules: § 18.05.120 .
• Residential district purpose, permitted uses, and standards: § 18.20.010, § 18.20.030, § 18.20.040 (Tables 18.20.030 and 18.20.040) .
• RIPAOZ overlay rules and minimum density requirements: overlay text in Chapter 18.20 (RIPAOZ provisions) and related notes (see § 18.20.020 / overlay text) .
• Downtown business district: § 18.39.010–§ 18.39.045 (DVC, DNC, DVS zones and downtown standards) .
• Special districts/overlay (PRD, P/Q, Calimesa Creek Overlay): Chapter 18.40, especially § 18.40.030 for the Calimesa Creek Overlay .
• Development plan review and minor plan review list (including ADUs as a minor review item): § 18.90.010–§ 18.90.030 .
• Open Space permitted uses and study requirements: § 18.35.020–§ 18.35.030 .
• Download/source base for retrieved ordinance text: Calimesa Municipal Code (downloaded from https://ecode360.com/CA4374) — the retrieved snippets above were taken from that municipal code repository .

Retrieved passages

• CMC § 18.05.080 (§ 12.1.08) High relevance show source text
• CBC § 18.20.040 (§ 18.20.040) High relevance show source text
• CMC § 18.05.080 (§ 12.1.07) High relevance show source text
• CMC § 12.3.02 (§ 12.3.02) Medium relevance show source text
• Calimesa Zoning Code (title is) Medium relevance show source text
• CMC § 18.20.020 (Title 16) Medium relevance show source text
• Calimesa Zoning Code (§ 12.6.03) Medium relevance show source text
• Calimesa Zoning Code (§ 18.20.040) Medium relevance show source text

Cited sections

• Code title and purpose: **§ 18.05.010–§ 18.05.040** (Zoning title; code authority and applicability) . (title and)
• Zones established (list of zone symbols and chapter references): **§ 18.05.080** . (chapter references)
• Official zoning map rules and filing: **§ 18.05.090–§ 18.05.110** (map is part of code; kept with city clerk/planning) . (§ 18.05.090)
• Zoning map interpretation rules: **§ 18.05.120** . (§ 18.05.120)
• Residential district purpose, permitted uses, and standards: **§ 18.20.010**, **§ 18.20.030**, **§ 18.20.040** (Tables 18.20.030 and 18.20.040) . (§ 18.20.010)
• RIPAOZ overlay rules and minimum density requirements: overlay text in Chapter **18.20** (RIPAOZ provisions) and related notes (see **§ 18.20.020** / overlay text) . (§ 18.20.020)
• Downtown business district: **§ 18.39.010–§ 18.39.045** (DVC, DNC, DVS zones and downtown standards) . (§ 18.39.010)
• Special districts/overlay (PRD, P/Q, Calimesa Creek Overlay): Chapter **18.40**, especially **§ 18.40.030** for the Calimesa Creek Overlay . (§ 18.40.030)
• Development plan review and minor plan review list (including ADUs as a minor review item): **§ 18.90.010–§ 18.90.030** . (§ 18.90.010)
• Open Space permitted uses and study requirements: **§ 18.35.020–§ 18.35.030** . (§ 18.35.020)
• Download/source base for retrieved ordinance text: Calimesa Municipal Code (downloaded from ) — the retrieved snippets above were taken from that municipal code repository .
• Calimesa_ZoningCode.md