Colton — Land Use

Last reviewed: July 1, 2026

Overview

This page summarizes what the Colton Zoning Code says about land use: which uses are permitted or conditional by district, the principal dimensional/development standards that control placement and intensity, and the overlay and review rules that change how uses are approved. The primary use controls live in the city’s uses matrix and district chapters (chapter references below); development-level rules such as parking, landscaping and review procedures are applied in parallel. See the city's main zoning pages for related procedural topics: Colton Zoning and the Colton zoning & planning overview.

The rest of this page quotes no long ordinance passages; it synthesizes and points you to the controlling sections. For procedural items (design review, parking, ADUs, development standards, overlays and the state building code) see the related guidance pages linked inline where first mentioned.

How the code is organized (quick)

• The uses matrix and rules describing whether a use is Permitted (P), Conditionally Permitted (C or MC), Not Permitted (N), or requires a special Adult Use Development Permit (A) are in § 18.06.060 .
• Individual zones (residential, commercial, industrial, mixed-use) list their intent and then refer to the appropriate use table (Table E, F or G) and the zone’s development standards table (each chapter contains a “Property Development Standards” table such as § 18.12.050‑1 for R‑1). See § 18.06.060 for the scheme and each zone chapter cited below for standards and applicability .

District-by-district breakdown

Notes on format below: each district subsection lists purpose (intent), where permitted uses are defined, the key dimensional standards shown in the code table, and where the district is applied (map/overlay notes). All referenced controlling sections are cited.

R‑1 — Single‑Family Residential

• Purpose: The R‑1 district is intended for conventional single‑family development and to preserve single‑family neighborhood character. See § 18.12.010 .
• Permitted uses: Land uses are shown in the uses matrix (Table E referenced by the zone). See § 18.12.030 (refers to Table E) and the general rules in § 18.06.060 .
• Key dimensional standards (summary): Minimum lot size 7,200 sf, front setback 25 ft, side setbacks = 10% of lot width (max 15 ft), rear setback 20 ft, max lot coverage 40%, max height 2.5 stories / 35 ft. See § 18.12.050‑1 .
• Where it applies: Standard municipal zoning map designation R‑1; check the official map for parcel‑specific application. Amendments and map change rules: § 18.06.050 .

R‑2 — Medium‑Density Residential

• Purpose: The R‑2 district is for detached and attached small‑lot housing, duplexes and townhomes. See § 18.14.010 .
• Permitted uses: See Table E via § 18.14.030 and the general uses matrix § 18.06.060 .
• Key dimensional standards (summary): Min lot size 7,200 sf, front setback 25 ft, side setbacks = 10% of lot width, max lot coverage and density per Table 18.14.050‑1. See § 18.14.050‑1 .
• Where it applies: Standard municipal designation R‑2; consult the zoning map and permit rules in § 18.06.050 .

R‑3 / R‑4 — Higher‑density Residential / Multifamily

• Purpose: R‑3/R‑4 allow higher density multifamily (townhomes, apartments). See § 18.16.050 (development standards and intent) and § 18.16.030 (permitted uses reference) .
• Permitted uses: See Table E (the uses matrix) via § 18.16.030 and § 18.06.060 .
• Key dimensional standards (summary): Min lot size 7,200 sf, front setback 25 ft, max lot coverage up to 70% (R‑3/R‑4 tables), density ranges and maximum up to 30 DU/acre in special cases; see § 18.16.050‑1 .
• Special rules: Senior housing density reductions may be allowed through a Conditional Use Permit as noted in the zone chapter § 18.16.050 .

V‑L — Very‑Low Residential

• Purpose: V‑L is intended for very low density (large lots) development. See § 18.10.010 and uses reference § 18.10.030 .
• Permitted uses: Table E (referenced) — § 18.10.030 .
• Key dimensional standards (summary from Table 18.10.050‑1): Minimum lot size 20,000 sf, front setback 35 ft, side setbacks = 10% of lot width (not exceeding 15 ft), max lot coverage 20%, max height 2.5 stories / 35 ft. See § 18.10.050‑1 .

C‑2 (General Commercial) — Downtown Overlay (C‑2/D)

• Purpose: C‑2/Downtown focuses on retail, services and offices in the historic downtown and implements the Downtown Design Manual. See § 18.23.4.010 .
• Permitted uses: Uses are given by Table F for downtown; see § 18.23.4.030 and the general uses matrix § 18.06.060 .
• Key dimensional/urban form standards (summary): Minimum lot size 4,000 sf, maximum building height three stories / 40 ft, maximum front setback generally 10 ft (with exceptions for plazas up to 20 ft), commercial max FAR 2.0. See § 18.23.4.050‑1 .
• Design review: downtown projects require architectural/site plan review; see Colton Design Review and § 18.23.4.120 / § 18.58 references .

M‑U — Mixed‑Use (Neighborhood and Downtown)

• Purpose: M‑U (Neighborhood) allows office, commercial and residential (including live/work) at neighborhood scale; M‑U/D (Downtown) has stronger downtown form/design rules. See § 18.23.1.010 and § 18.23.120 .
• Permitted uses: Uses are listed in the downtown/neighborhood use tables (referenced in zone chapters). See § 18.23.1.030 and the uses matrix § 18.06.060 .
• Key standards: The M‑U chapters include property development standards (lot sizes, setbacks, height) and require design review; see § 18.23.1.050 and § 18.23.120 .

I‑P — Industrial Park

• Purpose: I‑P supports office/industrial parks, research & development, light industrial and supportive retail. See § 18.24.010 .
• Permitted uses: Uses listed in the matrix (referenced by chapter). See § 18.24.010 and § 18.06.060 .
• Key standards: I‑P emphasizes high quality design and landscaping; specific property standards are given in the I‑P chapter (see chapter tables) .

M‑2 — Heavy Industrial

• Purpose: M‑2 accommodates heavy manufacturing, distribution, resource‑intensive activities and requires buffering from residential areas. See § 18.28.010 .
• Permitted uses: Refer to Table G in § 18.28.030 and the uses matrix § 18.06.060 .
• Property standards: M‑2 property development standards are codified (see § 18.28.050 for standards) .

Overlay zones and special zones (how land use interaction changes)

• SDA (Special Downtown/Specific Design Overlay) requires Conditional Use or master CUP review for development and is always paired with an underlying zone (denoted R‑1/SDA etc.). See § 18.30.020 and § 18.30.030 .
• PC (Planned Community Overlay) and SP (Specific Plan Overlay) are overlays used to modify standards and require design review or specific plan conformance; see § 18.32.010–030 and § 18.34.010–030 .
• Overlay zones typically require additional approvals (CUP, design review or master plan) and may supersede or augment the underlying zone standards; see the specific overlay chapters cited above .

Key decision‑relevant standards (at‑a‑glance)

Note: the Colton code uses a matrix system (Tables E, F, G) to indicate whether each specific land use is P, C, MC or N in each zone; the zone chapters then point to the appropriate table rather than listing every use inline. See § 18.06.060 for the matrix rules and how P/C/N are defined .

How uses are approved and discretionary triggers

• If the use is shown as P in the table, it is allowed by right subject to meeting the code’s development standards and other chapters (parking, landscaping, signs). See § 18.06.060 .
• If the use is C or MC, a Conditional Use Permit or Minor Conditional Use Permit is required; the decision criteria and hearing procedures are in the CUP chapters and Administrative Review (§ 18.58). See § 18.06.060 and § 18.58.030 / § 18.58.070 .
• The Director has authority to find similar uses when a use is not specifically listed; criteria and appeal rules for similar‑use determinations are in the code (similar‑use authority). See § 18.06.060 and the similar‑use language in the uses chapter .
• Design or architectural review is required in many zones (PC, downtown, M‑U) — see Colton Design Review and specific zone design review sections (§ 18.32.030, § 18.23.4.120, § 18.23.120) .

For parking requirements that will be enforced for commercial and many residential projects, see the Colton parking standards and Chapter 18.36; summary parking tables for downtown appear in Table 18.23.070‑1. See Colton Parking and § 18.36.022 / § 18.36.030 .

Checklist (what an applicant must satisfy before construction/use changes)

• Confirm the parcel’s zoning and any overlays on the official zoning map (map amendments and timing rules: § 18.06.050) .
• Identify the specific use in the uses matrix (Table E/F/G) and determine P/C/MC/N status per § 18.06.060 .
• If conditional, prepare a Conditional Use Permit or Minor CUP application complying with the CUP criteria and timing rules (see § 18.58 and § 18.30.030 for SDA‑style CUP requirements) .
• Show compliance with the zone’s Property Development Standards (setbacks, lot coverage, height) in the relevant chapter table (e.g., § 18.12.050‑1 for R‑1, § 18.23.4.050‑1 for C‑2/D) . See Colton Development Standards.
• Prepare parking calculations and layouts per Chapter 18.36 and any zone‑specific parking table (e.g., downtown table 18.23.070‑1) and consult Colton Parking .
• Address landscaping, screening and trash enclosures per applicable chapters; see Colton Landscaping and Screening and chapter references in each zone (for downtown landscaping, see § 18.23.4.090) .
• Determine whether design review is required (PC, SP, M‑U/D, Downtown) and submit site plans/elevations per § 18.32.030, § 18.34.030, and § 18.58; consult Colton Design Review .
• If proposing an accessory dwelling unit, follow state ADU law and local ADU rules — see Colton ADUs and California ADU law. If ADU specifics are not found in the zoning excerpts, verify with the jurisdiction.
• Confirm compliance with the California Building Standards Code for any construction (see California Building Standards Code).
• If the use is not listed, request a Similar‑Use determination from the Director (the Director’s authority and criteria are in the uses chapter) and be prepared to appeal or apply for a CUP if denied. See § 18.06.060 and the similar‑use criteria .

Risks & Ambiguities

Plain‑English summary

Colton’s Zoning Code uses a uses matrix (Tables E/F/G referenced in § 18.06.060) to say whether a specific activity is allowed in a given zone; each zone chapter (for example R‑1 § 18.12.050‑1 or C‑2/D § 18.23.4.050‑1) contains the dimensional rules (lot size, setbacks, coverage, height) you must meet. If the matrix says a use is conditional, you need a CUP; if it’s not listed, the Director can consider it “similar” or you’ll need a change or variance — verify early with planning staff and account for parking and design review requirements .

Information Gaps

• Full content of the uses matrices (Table E, F, G) showing the P/C/MC/N entries for each specific use is not present in the retrieved excerpts. The code repeatedly says “Refer to Table E (or F or G) in § 18.06.060,” but the actual tabular lists were not fully included in the retrieved snippets. Verify with the official zoning code or planning counter for the full tables. See § 18.06.060 .
• Local ADU-specific provisions (e.g., size, parking reductions or objective design standards) are not present in the retrieved files shown here. See Colton ADUs and California ADU law; if the local ADU chapter is required, “Not found in retrieved materials.”
• Parcel‑specific zoning map location and any site‑specific overlays or specific‑plan text (e.g., Cooley Ranch addendum) must be confirmed on the city’s official zoning map and specific plan documents; see § 18.06.050 and § 18.32.040 for references .

Source References

• Uses matrix and definitions (Permitted/Conditional/Not Permitted/Special Adult Use): § 18.06.060
• R‑1 zone intent and standards: § 18.12.010 and § 18.12.050‑1
• R‑2 zone intent and standards: § 18.14.010, § 18.14.050‑1
• R‑3/R‑4 standards and uses: § 18.16.030, § 18.16.050‑1
• V‑L (Very Low) standards: § 18.10.030, § 18.10.050‑1
• C‑2 Downtown intent and property standards (C‑2/D): § 18.23.4.010, § 18.23.4.050‑1, § 18.23.4.030
• M‑U (mixed‑use) chapters and downtown criteria: § 18.23.1.010, § 18.23.120
• I‑P Industrial Park intent: § 18.24.010
• M‑2 Heavy Industrial intent and permitted‑uses reference: § 18.28.010, § 18.28.030
• Overlay zones (SDA, PC, SP) and overlay procedures: § 18.30.020–030, § 18.32.010–030, § 18.34.010–030
• Administrative review, Director powers and minor deviations: § 18.58.030
• CUP expiration/revocation and related timing: § 18.58.070
• Parking provisions and design of parking facilities: § 18.36.022, § 18.36.030 (and downtown parking table 18.23.070‑1)
• Nonconforming uses/structures: Chapter 18.46 (e.g., § 18.46.010)
• Home occupations and prohibited residential business activities: Chapter 18.44 (criteria and prohibited uses)

Retrieved passages

• Colton Zoning Code (§ 1) High relevance show source text
• Colton Zoning Code (§ 31) High relevance show source text
• Colton Zoning Code (§ 1) High relevance show source text
• Colton Zoning Code (title for) High relevance show source text
• Colton Zoning Code (§ 1) High relevance show source text
• Colton Zoning Code (title became) High relevance show source text
• Colton Zoning Code (Section 18.10.030) High relevance show source text
• Colton Zoning Code (Section 18.12.030) High relevance show source text

Cited sections

• Uses matrix and definitions (Permitted/Conditional/Not Permitted/Special Adult Use): **§ 18.06.060** (§ 18.06.060)
• R‑1 zone intent and standards: **§ 18.12.010** and **§ 18.12.050‑1** (§ 18.12.010)
• R‑2 zone intent and standards: **§ 18.14.010**, **§ 18.14.050‑1** (§ 18.14.010)
• R‑3/R‑4 standards and uses: **§ 18.16.030**, **§ 18.16.050‑1** (§ 18.16.030)
• V‑L (Very Low) standards: **§ 18.10.030**, **§ 18.10.050‑1** (§ 18.10.030)
• C‑2 Downtown intent and property standards (C‑2/D): **§ 18.23.4.010**, **§ 18.23.4.050‑1**, **§ 18.23.4.030** (§ 18.23.4.010)
• M‑U (mixed‑use) chapters and downtown criteria: **§ 18.23.1.010**, **§ 18.23.120** (§ 18.23.1.010)
• I‑P Industrial Park intent: **§ 18.24.010** (§ 18.24.010)
• M‑2 Heavy Industrial intent and permitted‑uses reference: **§ 18.28.010**, **§ 18.28.030** (§ 18.28.010)
• Overlay zones (SDA, PC, SP) and overlay procedures: **§ 18.30.020–030**, **§ 18.32.010–030**, **§ 18.34.010–030** (§ 18.30.020)
• Administrative review, Director powers and minor deviations: **§ 18.58.030** (§ 18.58.030)
• CUP expiration/revocation and related timing: **§ 18.58.070** (§ 18.58.070)
• Parking provisions and design of parking facilities: **§ 18.36.022**, **§ 18.36.030** (and downtown parking table 18.23.070‑1) (§ 18.36.022)
• Nonconforming uses/structures: Chapter **18.46** (e.g., **§ 18.46.010**) (§ 18.46.010)
• Home occupations and prohibited residential business activities: Chapter **18.44** (criteria and prohibited uses)
• Colton_ZoningCode.md

• Official Colton code library