Calexico — Land Use

Last reviewed: July 1, 2026

Overview

This page summarizes what the Calexico zoning ordinance (commonly Title 17) actually says about land use: how the code organizes permitted, conditional, and prohibited uses; the major zoning districts; and the most decision-relevant dimensional standards and processes you will hit when proposing a use. It only interprets the local zoning text — verify parcel‑specific items with the city. See the city's main Calexico Zoning overview for navigation to related topics.

How the code regulates uses (quick primer)

• Uses in Calexico are listed in each zone as P (permitted), C (permitted subject to a conditional use permit), or X (prohibited). See the code language establishing that notation in § 17.09.420; .
• Where a use is listed as C, the conditional use permit process and required findings are in § 17.01.510 through § 17.01.545; . The planning commission must make the findings in § 17.01.540; .
• Many zones require a development review before building; that requirement is called out in the R and C zone development standards (see the R zones and C zones rows below) — see the local development review rules at Calexico Design Review and the underlying development standards at Calexico Development Standards.

District-by-district breakdown (purpose, typical uses, key standards, where it applies)

A (Agricultural) — Purpose & uses

• Purpose: preserve agricultural production, maintain natural character, and allow limited development compatible with farming. See § 17.09.410; .
• Typical permitted uses: all types of agriculture, horticulture and grazing; on‑site sale/processing of products; farm worker housing; certain small accessory agricultural activities (see the table of specific items) — many items are listed as P or C in the A‑zone use table. See § 17.09.420; .
• Key dimensional standards where specified: Lot area 20,000 sq ft; Front setback 30 ft; Side setback 10 ft; Rear setback 40 ft; Max building height 35 ft or 2 stories; Lot coverage and other requirements in § 17.09.430; .
• Where applied: outlying agricultural parcels and areas the General Plan designates for agriculture. See the code’s A‑zone purpose language § 17.09.410; .

RR, R-1, RC, RA, R-2 (Residential zones) — Purpose & uses

• Purpose: provide a range of densities from rural to apartment housing and protect residential character. See § 17.03.100; .
• Typical permitted uses: single‑family dwellings are P in all R zones; duplexes, accessory living quarters, guest units and other residential uses appear as P, C, or X depending on the specific R zone (see the R zone use table in § 17.03.110); .
• Key dimensional/development rules: any legal lot may be built on provided it meets minimums; no building permit for lots < 4,000 sq ft; minimum 20 ft vehicular access; R‑zone development review is required prior to construction per § 17.03.120 (development review referral in § 17.01.700 is referenced there); .
• ADUs: ADU-specific rules are maintained in the local ADU provisions and state law. Consult the city's ADU page Calexico ADUs and state law California ADU law. (Local code references to granny‑flat/second unit allowances appear in the R‑zone text; see § 17.03.120; .)

CO, CN, CH, CS (Commercial zones) — Purpose & uses

• Purpose: provide locations for commercial activities at different scales/intensities; each commercial zone has a detailed use table showing P/C/X designations. See § 17.05.130; .
• Typical permitted uses: vary by subzone (e.g., neighborhood vs heavy commercial). The code’s use table shows items like post office branch (P in many commercial zones), churches (C or P depending on zone) and other uses by column — see § 17.05.120/17.05.130; .
• Key dimensional standards (general): for example, CO lot area 10,000 sq ft, front setback 20 ft, side setback 0/10, lot coverage 60%, max height 35 ft; the full C‑zone table is in § 17.05.130; .
• Parking and loading for commercial uses are specified separately in the off‑street parking chapter — see Calexico Parking and § 17.13.130 for schedules; .

PD (Planned Development Overlay Zone) — Purpose & uses

• Purpose: allow flexible, integrated development design with project‑level standards and amenities; PD uses draw from underlying R, C, I provisions or may be established by the PD. See § 17.09.210 and § 17.09.220; .
• Typical permitted uses: PD projects require a conditional use permit for “Planned developments” and otherwise follow the permitted/conditional uses of the R, C, and I zones as indicated in § 17.09.220; .
• Key development standards (minimums unless otherwise stated): Front setback 10 ft; Side 5 ft; Street side 10 ft; Rear 10 ft; Max height 35 ft (2 stories) generally, but up to 50 ft (4 stories) within the site interior as limited in § 17.09.230; Max site coverage 50% or the maximum of the underlying zone, distance between buildings 5 ft, etc.; see § 17.09.230; .
• When applicable: any area the city maps as PD or when an applicant applies for a PD overlay pursuant to the PD procedures. See § 17.09.210–230; .

SP (Specific Plan Overlay Zone) — Purpose & uses

• Purpose: implement comprehensive development for large areas (typically 50+ contiguous acres), where a development plan controls allowed uses and standards. See § 17.09.310–330; .
• Uses: allowable uses in an SP are established by the approved development plan text; the SP may incorporate base zone uses by reference or set its own lists. See § 17.09.320; .
• Development standards: as set in the development plan text; the ordinance notes there may be no minimum yard or usable open space requirements except as set by the plan. See § 17.09.330; .

OS (Open Space) — Purpose & uses

• Purpose: preserve open space, protect natural resources, and restrict intensive uses in areas of hazard. See § 17.09.510; .
• Uses and standards: the OS zone has its own use table and limitations; see § 17.09.520 for permitted/conditional distinctions. See § 17.09.520; .

Industrial / I zones and other special districts

• The ordinance references I zones and indicates PD and SP may pull uses from the I zone; specific I‑zone use tables and detailed standards were not present in the extracted snippets for this review. Not found in retrieved materials. Verify with the jurisdiction. (See the main zoning index at Calexico zoning & planning overview.)

Quick decision‑relevant standards (summary table)

(These are the most commonly enforced, decision‑relevant numbers. Always verify the particular zone table row for the use you intend.)

Practical guidance & interpretation

• Start by confirming the parcel's precise zone and any overlays on the city's zoning map (base zone controls allowed uses; overlays like PD and SP can alter uses/standards). See Calexico Overlay Districts.
• Read the zone’s use table: a use shown as P can proceed (subject to development standards); a C requires a use permit with findings in § 17.01.540; . If a use is not specifically listed, the planning director may make a similar‑use determination per the code (see the note in the commercial use table identifying that authority); .
• Expect separate standards and submittal requirements for parking and loading; see Calexico Parking and § 17.13.130; .
• Residential projects in R zones and many commercial projects require local development review; consult the Calexico Design Review page and the development review cross‑references in § 17.03.120 and § 17.05.130; .
• For construction code compliance (structural, life‑safety), refer to the state California Building Standards Code (Title 24) — zoning controls use and siting, not the building code. If local code is silent on a building detail, the building code and other local ordinances still apply. Verify with the jurisdiction.

Checklist

• Confirm parcel base zone and overlays on the city zoning map.
• Consult the zone’s use table: determine P, C, or X status (see the zone’s §).
• If C, prepare conditional use permit application with materials required by § 17.01.515 (plans, owner list, site elevations, operations statement); .
• Check development standards (setbacks, height, lot coverage) in the applicable zone (§ cited above) and in the PD/SP plan if relevant; .
• Prepare parking/loader analysis per § 17.13.130; .
• Confirm if development review or design review is required and schedule accordingly (see § 17.03.120 and § 17.05.130); .
• If use is not listed, request a similar‑use determination from the planning director (commercial table note); .
• Verify any nonconforming use or structure deadlines and obligations (see the nonconforming uses article); .

Risks & Ambiguities

Plain‑English summary

Calexico’s zoning ordinance lists allowed uses per zone as P/C/X; if your proposed activity is marked C you need a conditional use permit and must satisfy the findings in § 17.01.540; otherwise you must meet the dimensional and parking rules in the applicable zone tables. Always check overlays (PD/SP) and the planning director’s similar‑use rulings for ambiguous cases. See the zone tables and standards cited above for the controlling numbers. See § 17.01.540;

Source References

• Use notation and A‑zone use table: § 17.09.420;
• A‑zone property development standards: § 17.09.430;
• Planned Development Overlay (PD) purpose, uses, standards: § 17.09.210, § 17.09.220, § 17.09.230;
• Residential zones purposes and use table: § 17.03.100 and § 17.03.110;
• R‑zone development standards and review requirement: § 17.03.120;
• Commercial zones property development standards and similar‑use note: § 17.05.130;
• Conditional Use Permit rules, application contents and findings: § 17.01.510–§ 17.01.545 (notably § 17.01.515, § 17.01.540);
• Nonconforming uses: § 17.01.880–§ 17.01.895;
• Off‑street parking schedule and standards: § 17.13.130;
• Specific Plan overlay rules (SP): § 17.09.310–330;

Retrieved passages

• Calexico Zoning Code (Chapter 17.01) High relevance show source text
• Calexico Zoning Code (Article V.) High relevance show source text
• Calexico Zoning Code (Article IV.) High relevance show source text
• Calexico Zoning Code High relevance show source text
• Calexico Zoning Code (Article III) High relevance show source text
• Calexico Zoning Code (§ 3) High relevance show source text
• Calexico Zoning Code (section for) High relevance show source text
• Calexico Zoning Code (§ 1) Medium relevance show source text

Cited sections

• Use notation and A‑zone use table: **§ 17.09.420** (§ 17.09.420)
• A‑zone property development standards: **§ 17.09.430** (§ 17.09.430)
• Planned Development Overlay (PD) purpose, uses, standards: **§ 17.09.210**, **§ 17.09.220**, **§ 17.09.230** (§ 17.09.210)
• Residential zones purposes and use table: **§ 17.03.100** and **§ 17.03.110** (§ 17.03.100)
• R‑zone development standards and review requirement: **§ 17.03.120** (§ 17.03.120)
• Commercial zones property development standards and similar‑use note: **§ 17.05.130** (§ 17.05.130)
• Conditional Use Permit rules, application contents and findings: **§ 17.01.510**–**§ 17.01.545** (notably **§ 17.01.515**, **§ 17.01.540**) (§ 17.01.510)
• Nonconforming uses: **§ 17.01.880**–**§ 17.01.895** (§ 17.01.880)
• Off‑street parking schedule and standards: **§ 17.13.130** (§ 17.13.130)
• Specific Plan overlay rules (SP): **§ 17.09.310–330** (§ 17.09.310)
• Calexico_ZoningCode.md

• Official Calexico code library