Colfax — Historic Preservation

Last reviewed: July 1, 2026

Overview

Colfax treats historic preservation through a combination of an Historic Zone overlay, a local Significant Buildings chapter that protects named landmarks, and citywide Design Guidelines that steer exterior changes to reinforce the downtown/railroad-era character. These rules layer on top of the regular zone rules (R-1, RM, CR, CH, MU‑1, MU‑2, I, O, R‑MHS, CD) and are administered by the planning director and planning commission. Key local controls are codified in § 17.84.020, Chapter 17.200, and Chapter 17.116 of the Colfax zoning title.

Note: first mentions of related topics are linked to the city's content pages for quick reference: see Colfax zoning & planning overview, the zoning map and district rules, design review, overlay districts, development standards, parking, ADUs and the California Building Standards Code.

How Colfax's rules are structured (short synthesis)

• The Historic Zone operates as an overlay — it does not replace base zones but adds controls and design expectations to properties inside the mapped historic overlay (the overlay map is kept on file with the city clerk). § 17.84.020(C).
• The city-wide Design Guidelines implement the historic-character objective and apply to almost all zoning districts (with residential exceptions identified in the guidelines) and are used as the standard when planning approval requires design review. § 17.116.010 – .020.
• Certain buildings are specifically listed as Significant Buildings (local landmarks); demolition of those buildings requires a discretionary design review approval and additional findings and mitigation. Chapter 17.200 (notably § 17.200.020 – .040).

District-by-district breakdown (how historic-preservation controls interact with each Colfax district)

The code establishes the base districts at § 17.16.010; the Historic overlay may cover parcels in any of these base zones and imposes overlay-specific policies and review expectations. For each district below I list the purpose (as stated or implied in the code), typical uses (high-level), where historic controls specifically appear in the code for that district, and whether discrete dimensional numbers were found in the retrieved materials.

• O (Open space)

  • Purpose: preserve open space and passive uses; listed at § 17.16.010.
  • Typical permitted uses: public open space, parks, passive recreation (specific use table not reproduced in the retrieved snippets). Verify with Chapter(s) for O uses.
  • Historic overlay: If included in the overlay, design guidelines apply and sign/temporary-use special rules referenced for historic area apply. § 17.84.020, § 17.116.020.
  • Key dimensional standards: Not found in retrieved materials for O in the snippets — verify with the official development standards. Verify with the jurisdiction.

• R-1 (Single‑family residence)

  • Purpose: single-family homes; established at § 17.16.010.
  • Typical permitted uses: single‑family dwellings and related accessory uses (exact lists in Chapter 17.68, referenced elsewhere in the code). See planned development allowance referencing Chapters 17.68 and 17.72.
  • Historic overlay: the design guidelines apply citywide but exclude certain small-lot R-1 types per the design-guidelines chapter (see § 17.116.020 for which single-family zones are excepted). § 17.116.020.
  • Key dimensional standards (setbacks, lot coverage, height): Specific numeric standards for R-1 were not present in the retrieved snippets. Verify with Chapter 17.68 and the official zone tables.

• RM (Multi‑family residence)

  • Purpose and typical uses: multi-unit housing; listed in § 17.16.010; multi-family permitted-use lists live in Chapter 17.72.
  • Historic overlay: design guidelines apply and additional review findings in § 17.116.050 include specific Historic Zone findings.
  • Key dimensional standards: Not found in retrieved snippets for RM specifics — verify in Chapter 17.72.

• CR (Retail Commercial)

  • Purpose: serve downtown/commercial retail uses; listed at § 17.16.010.
  • Typical uses: retail shops, personal services — standards and permitted uses are in the commercial chapters (not fully reproduced in retrieved snippets).
  • Historic overlay interaction: downtown/retail uses within the Historic overlay are expected to meet the design guidelines and Historic District sign standards (see Chapter 17.112 for sign requirements in the Historic District).
  • Key dimensional standards: Not found in retrieved materials; consult Chapter 17.76 (CR) or the city’s development standards. Verify with the jurisdiction.

• CH (Highway Commercial)

  • Purpose: highway-oriented retail and services; § 17.16.010.
  • Typical uses: larger commercial/auto-oriented uses; subject to special restrictions when overlapping the Historic overlay.
  • Notable historic-related allowance: certain temporary events and farmers markets are specifically permitted only in the historic district and the commercial highway zones per § 17.204.020.
  • Key dimensional standards: Not shown in retrieved snippets.

• MU‑1 (Mixed‑Use District - 1)

  • Purpose: specifically applied to Main Street in the Historic Downtown and intended to retain historic character while supporting ground-floor retail uses; see § 17.74.010.
  • Typical permitted uses: ground-floor retail (shops, cafes, restaurants) are emphasized; MU‑1 requires pedestrian-activated ground floor frontage and contains a detailed permitted-use matrix in § 17.74.020.
  • Historic overlay: MU‑1 is the downtown district that most often overlaps the Historic overlay; design review findings for the Historic Zone are explicitly applied to projects there. § 17.84.020, § 17.116.050.
  • Key dimensional standards: Specific area/height/setback numbers for MU‑1 are contained in the MU chapter tables (see § 17.74). Consult the full chapter.

• MU‑2 (Mixed‑Use District - 2)

  • Purpose: mixed uses adjacent to downtown and along South Auburn Street; supports residential + lower-intensity commercial uses; see § 17.74.010.
  • Typical uses: a mix of residential types and neighborhood-serving commercial; permitted-use matrix in § 17.74.020 (MU‑2 allows many of the same use types as MU‑1 but with different thresholds and permit types).
  • Historic overlay: where MU‑2 parcels fall in the Historic overlay, the overlay and design-guideline requirements apply. § 17.84.020.
  • Key dimensional standards: See Chapter 17.74 and development standards; not reproduced in retrieved snippets.

• I (Industrial)

  • Purpose: industrial uses; § 17.80.030 spells out general development standards.
  • Typical uses: industrial and related uses; must still comply with community design guidelines and specific plans. § 17.80.030(A).
  • Important dimension-related notes for historic interaction: industrial districts generally have no fixed height or lot coverage standards in the chapter (but must respect adjoining district limits within 100 feet), and must comply with design guidelines where applicable. § 17.80.030(B)–(D).

• R‑MHS (Residential Mobilehome Subdivision)

  • Purpose: mobilehome parks; the chapter contains specific improvement, street, and occupancy standards. See Chapter text cited in § 17.16.010 and detailed mobilehome chapter excerpts.
  • Historic overlay: if a mobilehome subdivision parcel sits in the overlay, applicable overlay and design requirements apply. § 17.84.020.

• CD (Civic District)

  • Purpose: public/civic buildings and uses; listed at § 17.16.010.
  • Historic overlay: design guidelines and historic zone findings apply when public/civic projects are in the overlay. § 17.84.020, § 17.116.010.

If you need parcel-specific numeric standards (front/rear/side setbacks, heights, lot coverage), those are in each district's chapter (for example, Chapters 17.68, 17.72, 17.76, 17.80). The retrieved materials do not reproduce all numeric tables — verify with the official zone tables and the city planning counter. Verify with the jurisdiction.

Decision‑relevant standards and permitted‑use quick reference

Practical guidance / synthesis (what an owner or designer must expect)

• If your property is inside the Historic Zone overlay (map on file with the city clerk), anticipate that exterior changes will be evaluated against the design guidelines and the special Historic Zone findings — including facades, materials, signage, and massing — and that some permitted uses or temporary activities are specifically permitted or prohibited in the overlay. § 17.84.020; § 17.116.020; Chapter 17.112.
• For demolition of a locally listed Significant Building, plan for a discretionary process: you must obtain a design review permit or design review modification and the city will require findings and consider mitigation (reuse of elements, relocation, archival documentation). There is a narrow safety/danger exemption under which immediate demolition may proceed, but the building official must document the danger in writing. § 17.200.040(B)–(D).
• Signage in the Historic District is tightly controlled: neon architectural details are prohibited, number/size/location of signs are limited, and preferred lettering and materials are called out in the design guidance. Expect required sign review and possible referral to the planning commission. Chapter 17.112.
• Design review (administrative or discretionary) is the primary procedural control for exterior work: check whether your project needs an Administrative Permit, Design Review Permit, or Conditional Use Permit under Chapter 17.32 and the design review chapters. § 17.32.010; § 17.116.040–.050.

Checklist

• Confirm whether the parcel is inside the Historic Zone overlay (zoning map on file with city clerk). § 17.84.020(C).
• Obtain a zoning clearance before submitting building permit documents for exterior work, demolition, relocation or major remodeling. § 17.28.020–.030.
• Prepare design drawings that explicitly address the Design Guidelines (materials, rooflines, storefronts, historic elements) and the Historic Zone findings. § 17.116.010–.050.
• If the building is a listed Significant Building, prepare a demolition/rehab justification and mitigation plan (preservation, relocation, archival photography). § 17.200.030–.040.
• For new or revised signage in the historic area, submit a sign application and follow Chapter 17.112 sign standards (note neon restrictions and maximum numbers).
• If temporary events are planned (market, festival), check § 17.204.020 for permitted activities in the historic district and whether an administrative permit is required.
• Expect the planning director or planning commission to make required findings; prepare written responses tied to code findings. § 17.116.050; § 17.40.070.

Risks & Ambiguities

Plain‑English Summary

If your property is in Colfax’s Historic overlay, expect planning review focused on keeping the downtown/railroad-era look: use historic-appropriate materials, smaller pedestrian-scaled signage, and design that “fits” adjacent buildings. Listed “Significant Buildings” get extra protection — you generally cannot demolish them without a discretionary approval and mitigation. Confirm your parcel’s overlay status, prepare design drawings tied to the city’s design guidelines, and expect the planning director or planning commission to make code findings before approval. § 17.84.020; Chapter 17.116; Chapter 17.200.

Source References

• § 17.84.020 — Historic zone: findings, purpose, overlay map on file with the city clerk.
• Chapter 17.116 (notably § 17.116.010 – .020, .040 – .050) — Colfax Design Guidelines: purpose, applicability, findings and approval authority for design review.
• Chapter 17.200 (notably § 17.200.010 – .040) — Significant Buildings: definitions, current list, demolition controls and mitigation.
• Chapter 17.112 (sign rules and the Historic District sign standards; § 17.112.060 – .090).
• Chapter 17.204 (§ 17.204.020) — Temporary uses (farmers markets, festivals, fireworks) limited to historic district and CH as identified.
• Chapter 17.32 and § 17.28.020–.030 — Permit requirements (design review triggers) and zoning clearance process.
• Zoning district list, including R-1, RM, CR, CH, MU‑1, MU‑2, I, O, R‑MHS, CD — § 17.16.010.
• Design‑/development standards and industrial-specific notes — § 17.80.030.

(These citations point to the Colfax zoning title material provided in the uploaded ordinance extract. For parcel-specific numeric tables and the official overlay map, consult the city clerk and the full zoning code chapters identified above.)

Retrieved passages

• Colfax Zoning Code (Chapter 17.176.) High relevance show source text
• Colfax Zoning Code (Article IV) High relevance show source text
• California Building Code Medium relevance show source text
• Colfax Zoning Code (Chapter 17.116) Medium relevance show source text
• Colfax Zoning Code Medium relevance show source text
• Colfax Zoning Code (chapter does) Medium relevance show source text
• Colfax Zoning Code (Section 17.40.070.) Medium relevance show source text
• CFC § 15.20.060 (Section 15.20.060.) Medium relevance show source text
• Colfax Zoning Code (Article IV) Medium relevance show source text
• California Building Code Medium relevance show source text
• Colfax Zoning Code (section may) Medium relevance show source text
• Colfax Zoning Code (ARTICLE II.) Medium relevance show source text

Cited sections

• **§ 17.84.020** — Historic zone: findings, purpose, overlay map on file with the city clerk. (§ 17.84.020)
• **Chapter 17.116** (notably **§ 17.116.010 – .020, .040 – .050**) — Colfax Design Guidelines: purpose, applicability, findings and approval authority for design review. (Chapter 17.116)
• **Chapter 17.200** (notably **§ 17.200.010 – .040**) — Significant Buildings: definitions, current list, demolition controls and mitigation. (Chapter 17.200)
• **Chapter 17.112** (sign rules and the Historic District sign standards; **§ 17.112.060 – .090**). (Chapter 17.112)
• **Chapter 17.204** (**§ 17.204.020**) — Temporary uses (farmers markets, festivals, fireworks) limited to historic district and CH as identified. (Chapter 17.204)
• **Chapter 17.32** and **§ 17.28.020–.030** — Permit requirements (design review triggers) and zoning clearance process. (Chapter 17.32)
• Zoning district list, including **R-1, RM, CR, CH, MU‑1, MU‑2, I, O, R‑MHS, CD** — **§ 17.16.010**. (§ 17.16.010)
• Design‑/development standards and industrial-specific notes — **§ 17.80.030**. (§ 17.80.030)
• Colfax_ZoningCode.md
• 2025 California Building Code.md

• Official Colfax code library