Local zoning · Colfax

Colfax — Development Standards

Development Standards under the Colfax local zoning and planning code, with the controlling citations.

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Last reviewed: July 1, 2026

Overview

This page summarizes the City of Colfax development standards that control physical site layout — setbacks, heights, lot coverage, density/FAR, and accessory-structure rules — as written in Title 17 (Zoning) of the Colfax Municipal Code. It is Colfax-specific: every numeric standard below is tied to the actual Colfax code sections cited. For rules on on-site parking, historic rules, signs, or building-code (Title 24) requirements see the linked topic pages in the text below.

How to read this page

  • Bolded names (for example R-1-5, MU-1, 2.0 FAR) are the exact zoning districts or numeric standards used in the Colfax code.
  • The controlling ordinance citation is given as a paragraph symbol plus the section (for example § 17.72.030). Each such statement is grounded in the Code excerpts retrieved from the City of Colfax Title 17 files. File citations from the retrieved ordinance are appended where the ordinance text was used.
  • First mention links to related topic pages: parking, setbacks/development standards, design review, overlays, ADUs, and the California building code are linked inline so you can jump to those topics: Colfax Parking, Colfax Zoning, Colfax Design Review, Colfax Overlay Districts, Colfax ADUs, California Building Standards Code.

District-by-district development standards

Notes on sources: Colfax's development standards are in Title 17 (Chapters 17.68–17.80; residential rules primarily in Chapter 17.72; accessory structure rules in 17.96; mixed-use density/FAR in 17.74.040; commercial rules in 17.76.030; industrial rules in 17.80.030). See Source References at the end for exact citations.

Residential districts (Chapter 17.72)

  • Purpose & allowed uses: Single-family and multi-family housing and compatible public/quasi-public uses are regulated at the district level; accessory uses follow Chapter 17.96. § 17.72.010 and § 17.72.020.

  • Key districts: R-1-5, R-1-10, R-1-15, R-1-20, R-1-40, and R-M (multi-family) and R-MHS (mobilehome subdivision). The zoning chapter lays out distinct lot-width, minimum lot area, setback, lot-coverage and density rules by these subdistricts. § 17.72.010–.040.

  • Typical dimensional rules (representative — check site-specific zone on the parcel):

    • R-1-5: front setback 20 ft, side 6 ft, rear 20 ft, minimum lot width 50 ft, residential density 1 dwelling per lot. § 17.72.030.
    • R-1-10: front 20 ft, side 8 ft, rear 30 ft, lot width 80 ft. § 17.72.030.
    • R-1-15: front 20 ft, side 8 ft, rear 30 ft (other variations exist in table). § 17.72.030.
    • R-1-20 / R-1-40: larger minimum front yards (30 ft) and wider lot widths. § 17.72.030.
    • R-M (multi‑family): may use density bands (RM-1, RM-2) and has maximum site coverage and minimum usable open space standards; building height limited to 2½ stories or 30 ft in many cases. § 17.72.030 (notes and tables).

  • Corner-lot / clear‑vision rules: On corner parcels, the Code requires no visual obstructions in the residential clear vision triangle and gives a formula for setbacks for structures located within 20 ft of a property line (use the lesser of adjacent-district standards or a minimum setback of 6 ft plus 1 ft for every ft above 10 ft in height). § 17.72.030(B).

  • Accessory structures to dwelling types (decks, sheds, patios, gazebos) are governed in Chapter 17.96.030 (see separate accessory summary below). § 17.96.030.

Practical guidance: measure front setbacks from the back of the sidewalk where sidewalks exist; in the absence of a sidewalk measure from the right-of-way. The planning director determines "front" on irregular lots. § 17.72.030 (notes).

Multi-family / Mixed-Use districts (Chapter 17.74)

  • MU-1 (Downtown Mixed‑Use): Maximum FAR 2.0; minimum net parcel area per dwelling 625 sq ft; FAR calculation includes all residential floor area. § 17.74.040.
  • MU-2: Maximum FAR 1.5; residential density 10–29 du/acre. § 17.74.040.

Practical guidance: where a project proposes mixed uses downtown expect the FAR cap to control overall bulk rather than a simple percent lot coverage; verify how the project’s residential floor area is counted per § 17.74.040.

Commercial districts (Chapter 17.76)

  • Districts: C-R (Retail Commercial) and C-H (Highway Commercial). Purpose: shopping, service, highway/auto‑oriented commercial respectively. § 17.76.010.
  • Heights: C-R max 30 ft; C-H max 35 ft unless modified by design review or a specific plan. § 17.76.030(B).
  • Lot coverage / setback patterns: C-R and C-H tables set specific front/side/rear yard minima and maximum lot coverage (see § 17.76.030(D)). § 17.76.030(D).

Practical guidance: commercial lots abutting residential zones must provide the residential district setbacks on the abutting side; commercial clear-vision triangles differ (36" max obstruction). § 17.76.030(C–D).

Industrial districts (Chapter 17.80)

  • General: Industrial districts generally have no strict lot coverage or yard requirements except where the industrial parcel adjoins a non‑industrial district — then setbacks equal the adjoining district’s main‑building setbacks. No general height limit except near other districts: within 100 ft of an adjoining boundary a building cannot exceed the height allowed in the adjacent district. § 17.80.030(B–D).

Practical guidance: industrial proposals should check boundaries with adjacent zones; if next to residential, use residential setback/height limits for the affected property lines. § 17.80.030(D).

Overlay & special purpose districts (Chapter 17.84)

  • The historic zone, civic district, open space, and other overlays add standards beyond the base zone; the overlay text often defers to the base district for many dimensional items but imposes design- and form-based requirements and special setback rules for structures within 20 ft of property lines. § 17.84.010–.020; 17.68.040.

Practical guidance: always check for overlays; the Historic zone and Civic district may require design review in addition to base setbacks. See the City’s design review rules. Colfax Overlay Districts

Accessory structures (Chapter 17.96)

  • Chapter 17.96.030 governs accessory structures for residential uses (sheds, decks, patios, unenclosed structures). Key rules:
    • Uncovered decks under 30 in are permitted anywhere; taller decks must meet expanded setbacks. § 17.96.030(C)(1).
    • Unenclosed shade structures and gazebos are not counted toward site coverage but must not enclose ≥ 20% of a side yard; max height 15 ft, one story; for each foot above 10 ft increase side/rear setback by 1 ft (front yard setback rules also apply). § 17.96.030(C)(3).
    • Enclosed detached accessory buildings > 120 sq ft have limits: maximum 700 sq ft detached accessory area on a lot without administrative approval for more; if in rear yard total accessory buildings must be less than 50% of required rear yard. § 17.96.030(C)(5).

Practical guidance: accessory structure placement is tightly tied to the primary structure setbacks and the special rules for corner and key lots. For deck/porch encroachments see § 17.72.030(D) and § 17.96.030(C).

Quick reference table — decision‑relevant standards

District / Item Typical controlling numeric standard Where to confirm in code
R-1-5 front setback 20 ft § 17.72.030
R-1-10 front/side/rear 20 ft / 8 ft / 30 ft § 17.72.030
R-M height 2½ stories or 30 ft (single-family in R-M follow R-1-5 rules) § 17.72.030
MU-1 FAR Max FAR 2.0; min 625 sq ft net parcel area per unit § 17.74.040
MU-2 FAR/density Max FAR 1.5; 10–29 du/acre § 17.74.040
C-R height 30 ft (unless modified) § 17.76.030(B)
Accessory structures (decks, sheds) Decks < 30 in allowed anywhere; unenclosed structures max 15 ft high; detached accessories max 700 sq ft without admin permit § 17.96.030
Industrial buffers No general area/coverage limits; where industrial adjoins other districts, use adjacent district setbacks; height limited within 100 ft of boundary § 17.80.030(D)

Information Gaps

  • Parcel‑specific zoning subdistrict assignments (e.g., whether a given lot is R-1-15 vs R-1-10) are not in the Title 17 text excerpts here — verify the parcel's zone on the City zoning map. Not found in retrieved materials.
  • Certain cross-references (for example, complete parking tables and precise off‑street stall counts) are located in other chapters (e.g., Chapter 17.108) and were not fully extracted above — review Colfax Parking or Chapter 17.108 for numbers. Not found in retrieved materials.

Checklist — what an applicant must satisfy to demonstrate compliance with Colfax development standards

  • Confirm zoning of the parcel and exact subdistrict (R‑, MU‑, C‑, or I‑) and applicable overlays. § 17.16.010; § 17.84.010.
  • Demonstrate setbacks (front/side/rear) and height are within the district minimums/maximums (use § 17.72.030, § 17.76.030, or § 17.80.030 as applicable).
  • For accessory structures show conformance with § 17.96.030 (size limits, 700 sq ft cap, deck/porch rules).
  • For downtown mixed‑use projects show FAR calculations and net parcel area per unit per § 17.74.040.
  • Provide any required circulation, landscape/screening, and off‑street parking evidence per the applicable chapters and design guidelines (Colfax Parking; Colfax Landscaping and Screening).
  • Verify whether design review is required (historic, downtown, civic overlays) and prepare materials to satisfy design review findings. Colfax Design Review § 17.32 / design review findings.
  • If requesting reductions/waivers (e.g., density bonus or concessions) include the documentation required by § 17.104 and state law (Government Code § 65915). § 17.104.040–.060.

Risks & Ambiguities

Issue Why it matters What to verify
Block‑average front yard exception (older blocks) May change the required front setback from the table values, producing unexpected buildable area impacts Confirm whether 25%+ of lots in block were improved before Aug 24, 1967 and apply the front‑yard averaging rule in § 17.72.030(D)(7).
Corner lot / key‑lot measurements Setbacks measured from back of sidewalk/right‑of‑way; corner rules can increase setbacks (5 ft or 10 ft) Verify if sidewalks exist and whether the lot is adjacent to a key lot; confirm required setback in § 17.72.030 and accessory rules § 17.96.030.
ADU setbacks vs state ADU law State ADU rules limit local standards that would effectively preclude an 800 sq ft ADU — local code cannot impose restrictions that conflict with state ADU law For accessory dwelling units consult local ADU chapter and state rules; Colfax references accessory standards and state law interplay (see § 17.96.030 and state ADU statutes). Verify with Colfax ADUs and California ADU law. Not all ADU‑specific limits are repeated here.
Overlay district requirements (Historic/Civic) Overlays can add design, materials, or additional setback/height rules beyond the base zone Confirm overlay applicability and any additional site review/design review requirements under § 17.84.010–.020 and related chapters.
Variability in accessory structure rules Multiple accessory exceptions (deck height rules, 700 sq ft cap, unenclosed structure rules) — misreading leads to non‑compliant accessory placement Use § 17.96.030 as the controlling reference for accessory sizes/height/locations and request administrative permit when seeking exceptions.

Plain-English Summary

Colfax's Title 17 sets district-specific front/side/rear setbacks and height limits (for example, R‑1‑5 typically uses 20 ft front, 6 ft side, 20 ft rear; MU‑1 downtown controls bulk with a 2.0 FAR cap). Accessory buildings have separate rules (see § 17.96.030) and overlays or adjacent zones can change the effective setbacks or require design review. Always confirm the parcel's zoning and overlays, consult the accessory-structure rules for sheds/decks, and check mixed‑use FAR if you are in downtown. § 17.72.030; § 17.96.030; § 17.74.040.

Source References

  • Colfax Municipal Code, Title 17 (Zoning): Chapter 17.72 — Residential zones (purpose, permitted uses, setbacks and height) § 17.72.010–.040.
  • Colfax Municipal Code, Chapter 17.96 — Accessory structures (decks, sheds, unenclosed structures, 700 sq ft cap). § 17.96.030.
  • Colfax Municipal Code, Chapter 17.74 — Mixed‑use density and FAR, including MU‑1/MU‑2 (FAR limits). § 17.74.040.
  • Colfax Municipal Code, Chapter 17.76 — Commercial zone general development standards (height, yards). § 17.76.030.
  • Colfax Municipal Code, Chapter 17.80 — Industrial zone general development standards (no general coverage limits; buffer rules). § 17.80.030.
  • Colfax Municipal Code, Chapter 17.84 — Overlay and special purpose zones (historic, civic). § 17.84.010–.020.
  • Colfax Title 17 (Zoning) — table and policy introductions (editor’s note and Title adoption). Title 17.
  • Colfax density-bonus and incentive procedure: § 17.104.040–.060.

Sources

Retrieved passages

  • Colfax Zoning Code (Chapter 17.12) High relevance
  • Colfax Zoning Code High relevance
  • Colfax Zoning Code High relevance
  • Colfax Zoning Code (§ 1) High relevance
  • Colfax Zoning Code High relevance
  • Colfax Zoning Code (Chapter 17.12) High relevance
  • Colfax Zoning Code High relevance
  • Colfax Zoning Code (Chapter 17.12.030) High relevance
  • CBC § 1967 (Chapter 17.96) Medium relevance

Cited sections

Frequently asked questions

What can I build on an R‑1 lot in Colfax?

Most single‑family dwellings and customary accessory structures are permitted in the R‑1 subdistricts; the Code lists narrow permitted/conditional uses for each residential subzone and ties accessory rules to Chapter 17.96. Check the exact subdistrict (for example R‑1‑5 vs R‑1‑20) to know your setbacks and minimum lot width. See § 17.72.010–.020 and § 17.96.030.

What are Colfax setback requirements for single‑family homes?

Setbacks vary by R‑subdistrict. Example: R‑1‑5 front 20 ft, side 6 ft, rear 20 ft; R‑1‑10 typically front 20 ft, side 8 ft, rear 30 ft — the controlling table and notes are in § 17.72.030. Always confirm whether your lot is subject to an overlay or a front‑yard averaging rule which can change the required front setback.

How does Colfax measure setbacks on corner lots?

Colfax measures front setbacks from the back of the sidewalk (or right‑of‑way if no sidewalk). For corner lots the shorter frontage is generally treated as the front; special street‑side and key‑lot rules can increase the setback to 5 ft or 10 ft from the back of sidewalk/right‑of‑way. See § 17.72.030 and the notes.

What height limits apply in the downtown mixed‑use zone?

The downtown MU‑1 zone controls bulk primarily with an FAR cap of 2.0 rather than a single fixed height for every situation; where height is specified elsewhere it must be reconciled with design review and the FAR limits in § 17.74.040. Confirm permitted height in the applicable MU subzone and design guidelines.

Do accessory structures (sheds, decks) count against lot coverage in Colfax?

Many unenclosed accessory structures (shade structures, carports, gazebos) are not subject to site coverage limits but have size, height and setback rules (e.g., unenclosed structures max 15 ft high; detached enclosed accessory buildings are limited to 700 sq ft without an administrative permit). See § 17.96.030.

When does design review apply to development standards?

Design review is required when a project is within a district or overlay that references design review (historic district, certain downtown projects, or when a design review condition is established). The design review findings require that projects balance site use, access, parking, landscaping and be harmonious in height/bulk/size per § 17.32 and related design‑review chapters. See Colfax Design Review and § 17.32.

How is FAR calculated in Colfax mixed‑use zones?

Colfax explicitly states FAR includes all residential floor area on the parcel in addition to other floor area as defined in § 17.12.030; the mixed‑use FAR caps are in § 17.74.040 (MU‑1 2.0, MU‑2 1.5). Confirm what the Code counts as floor area and whether any exemptions apply.

Can industrial development ignore setbacks and heights?

Industrial districts generally have no lot coverage or yard requirements, but where an industrial parcel adjoins another district the front/side/rear yards of the adjoining district must be maintained for the industrial parcel along that boundary; also, within 100 ft of an adjoining district boundary buildings may not exceed the adjoining district’s height limit. See § 17.80.030.

What if I want to exceed an accessory limit (for example, accessory > 700 sq ft)?

Chapter 17.96.030 permits administrative permits for accessory structures exceeding some thresholds (for example, detached accessory area > 700 sq ft requires administrative approval). Document the need and apply for the administrative permit; findings and additional requirements are in Chapter 17.32/17.40 for certain administrative/conditional processes. § 17.96.030; §§ 17.32.010 & 17.40.020.

Do Colfax rules limit ADU size, setbacks, or placement?

Colfax accessory and ADU policies interact with state ADU law. Chapter 17.96 contains accessory structure standards; state ADU law restricts local standards that would effectively preclude an 800 sq ft ADU and imposes maximums on local ADU rules. For ADU specific allowance/limitations consult the local ADU chapter (see Colfax ADUs) and state ADU law references. Verify whether local accessory rules and state limits align. Not all parcel‑specific ADU rules are repeated in Title 17 excerpts here.

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