Norco Zoning, Planning & Building Codes

Last reviewed: July 3, 2026

Overview

Norco’s land-use rules are codified in a consolidated municipal zoning ordinance titled Title 18 — Zoning, which sets the City’s purpose, zone map, zone-by-zone use lists, and the procedures for discretionary review and specific plans § 18.01.02 . The code is organized around zone chapters (for example R-1, R-3, C-G, M-1, HS, OS) with overlay chapters and special chapters for Specific Plans, Planned Development overlays, and the Housing Development Overlay (HDO) § 18.03.02 . Read this page as the orienting head‑page for Norco zoning (first stop: Norco Zoning). Norco emphasizes an equestrian/rural character in its standards and approval checks § 18.01.04 .

How Norco's code is organized

• Title and purpose: the zoning ordinance is called the "Comprehensive Zoning Ordinance of the City of Norco" and sits in Title 18 with introductory chapters on definitions and intent § 18.01.02, § 18.01.04 .
• Official zoning map: the zones listed in the code are mapped and the map on file in the Planning Department is part of the ordinance § 18.03.06 .
• Chapter structure: the code is arranged by chapter for each zone (for example Chapter 18.15 for R-1, Chapter 18.17 for R-3, Chapter 18.24 for M-1, Chapter 18.26 for HS) plus separate chapters for overlays (PD, P‑E) and special programs (Specific Plans, HDO, Density Bonus) § 18.03.02, Chapter 18.52, Chapter 18.64, Chapter 18.65 .
• Cross‑references: many zone chapters reference common chapters for parking, signs, site plan review, architectural review, nonconforming uses, and conditional use/variance processes (for example Chapter 18.38 for parking; Chapter 18.37 for signs; Chapter 18.40 Site Plan Review; Chapter 18.41 Architectural Review; Chapter 18.45 Conditional Use Permit) as the implementing mechanics for site development § 18.25.26, § 18.17.38, § 18.17.40 . (For planning intake use the City site/menu link Norco Land Use.)

Zoning district families (what exists in Norco)

The ordinance enumerates the City’s base zones and overlays explicitly; the code prints the full list in the “Zones Established” provision § 18.03.02 . Key families:

• Open Space & Resource: OS (Open Space) — see § 18.03.02 .
• Hillside & Limited Development: HS (Hillside), LD (Limited Development) — hillside rules and special review procedures are in Chapter 18.26 § 18.26.04 .
• Agricultural: A-E (Agricultural Estate), A-1, A-2 — agricultural use rules and accessory/animal‑keeping provisions are in Chapter 18.12 and Chapter 18.13 § 18.12.02, § 18.13.06 .
• Residential: R-1 (single‑family) and R-3 (low‑density multifamily) — both use numerical suffixes to indicate subzone rules (R‑1‑10 = 10,000 sf minimum lot; R‑3‑6 = max 6 du/ac, etc.) § 18.15.04, § 18.17.04 .
• Commercial: C-G (Commercial General), C-4, C-R, C-O — commercial chapters set lot‑size, setback, and use tables (see Chapter 18.29 and zone‑specific sections) § 18.29 .
• Industrial / Mixed: M-1 (heavy commercial/light manufacturing), M-2 (general manufacturing) — M‑1 site standards and permitted uses are in Chapter 18.24 § 18.24.08 .
• Overlays & Special: PD (Planned Development Overlay), P‑E (Pedestrian‑Equestrian trails zone), HDO (Housing Development Overlay), AKO (Animal‑Keeping Overlay) and a Hospitality Development Zone are in Chapters 18.27, 18.28, 18.64, 18.16, and 18.63 respectively § 18.27.44, § 18.28.04, § 18.64.02, § 18.16.60, § 18.63.02 . (See the City’s overlays menu at Norco Overlay Districts.)

Citywide development standards (high‑level)

Norco distributes development standards both in zone chapters and in shared chapters. Below are the common threads and where they live; for more numeric details inspect the zone chapter that applies.

• Setbacks & yards — each zone has its own yard rules; typical front‑yard minimums are 25–30 ft in many commercial/industrial zones and 25 ft in the Hillside/HS front yard standard § 18.24.08(front), § 18.26.14(a) . The R‑1 and R‑3 chapters use subzone suffixes to set minimum lot size and thereby control setback patterns § 18.15.04, § 18.17.04 . (See the page for precise lot‑by‑lot numbers at Norco Development Standards.)
• Height — many zones cap building height at 35 ft / two stories (subject to CUP increases in some zones); for example most commercial and residential chapters set 35 ft as the baseline maximum § 18.21.18, § 18.25.18 . Some industrial zones list lower numeric maxima (M‑1 25 ft baseline) with CUP options to increase § 18.24.08 .
• Lot coverage / FAR — several zones specify lot coverage limits or "no requirement" (many commercial/industrial zone tables use "No requirement" or list limits within the zone chapter); check the applicable chapter (e.g., M‑1 table lists coverage and building floor area caps) § 18.24.08 .
• Distances between buildings and separations — minimum separation rules appear across zones (examples: 12 ft between buildings minimum in some commercial chapters; 10 ft in other contexts) § 18.23.20, § 18.11.22 .
• Parking — Norco relies on a citywide off‑street parking chapter for minimums and standards (Chapter 18.38) and individual zone chapters reference and apply it; specialized projects (senior housing, multifamily) also carry project‑specific ratios (example: some senior housing standards cite 0.75 spaces per unit as a minimum and handicapped/loading formulas) § 18.25.26, § 18.17.06(d)(c) . See the practical parking guidance at Norco Parking.
• Landscaping, screening, walls & fences — zones refer back to shared landscaping/screening sections (e.g., screening requirements in C‑G and M‑1 reference Section 18.29.70 and Section 18.24.10(D) respectively) § 18.29.70, § 18.24.10(D) . For detailed standards see Norco Landscaping and Screening.

Design review & discretionary checks

• Site plan, architectural and discretionary reviews: the code centralizes review procedures: Site Plan Review is Chapter 18.40, Architectural Review is Chapter 18.41, and Conditional Use Permits are Chapter 18.45; many zone chapters explicitly require those chapters for plan approval § 18.17.38, § 18.17.40, and multiple zone provisions referencing Chapter 18.45 . (See the City’s Norco Design Review page.)
• Planned Development (PD) overlay process: the PD overlay is an explicit two‑step zoning overlay — preliminary development plan to Planning Commission and final development plan to City Council — with required submittal materials and findings codified in the PD chapter § 18.27.46–52 .
• Historic/HPOZ‑style controls: Norco has a Historic Preservation chapter that requires Certificates of Appropriateness and ties compatibility standards to HPOZs (height, materials, lot coverage) § 18.58.18 . (See Norco Historic Preservation.)

Specific plans, overlays & special programs (what triggers them)

• Specific Plans: Chapter 18.52 describes initiation, composition, and the requirement that a Specific Plan be in effect before major subdivisions or construction within areas where the City requires one § 18.52.02, § 18.52.04, § 18.52.06 . Hospitality (HD) and other special zones expressly require a Specific Plan before grading or any construction that would require a building permit § 18.63.12 .
• Housing Development Overlay (HDO): the HDO is a targeted overlay to facilitate affordable housing and mixed use and requires an HDO site plan and objective standards; it also contains a programmatic density bonus tied to equestrian facilities (up to 35 du/ac if criteria are met) § 18.64.02, § 18.64.10 .
• Animal‑keeping and AKO: special animal‑keeping overlays and standards (AKO) and the City’s animal‑keeping chapter control animal units, buffers and linkage to equestrian trails § 18.16.50, § 18.16.60 .
• Pedestrian‑Equestrian (P‑E) zone: Norco protects trail corridors and explicitly limits motorized uses in the P‑E overlay (Chapter 18.28) § 18.28.06, § 18.28.10 . (See Norco Overlay Districts.)

Building permits & review pathway — practical orientation

• Which approvals before a building permit? Depending on zone and project type you may need ministerial site review, discretionary site plan or architectural review, a Conditional Use Permit (CUP), or an adopted Specific Plan/PD overlay before building permits are issued; zone chapters explicitly call out which approvals apply (examples: HDO site plan rules; PD overlay preliminary/final plan; Hospitality zone requiring a Specific Plan for permit‑triggering development) § 18.64.14, § 18.27.46, § 18.63.12 .
• Site plan vs. ministerial approvals: the HDO chapter includes a ministerial approval route for some qualifying affordable projects that meet objective standards; otherwise, HDO projects follow site plan review and discretionary processes § 18.64.13–14 .
• Building code linkage: Norco references the Uniform/State building codes through adoption in Title 15 and cross‑references those standards where structural and separation rules are delegated to the Building Code (for example, distance between buildings is “controlled by the Uniform Building Code as adopted by reference in Title 15”) § 18.26.14(4) . For state technical standards see California Building Standards Code.
• Typical processing sequence: zoning entitlement(s) (site plan / CUP / PD / Specific Plan) → building permit plan check (Title 15/Title 24 compliance) → inspections and certificate of occupancy. Many zone chapters require CC&Rs or maintenance agreements as a condition before permits are finalized (senior housing example) § 18.17.06 & § 18.17.04 .

State housing law in Norco — how statewide rules interact

Norco implements a local density‑bonus chapter and HDO bonus rules and refers to state law where applicable; the municipal code also integrates state housing law into local approval mechanics.

• Density bonus (State Government Code §§ 65915 et seq.): Norco has a dedicated Residential Density Bonus chapter (Chapter 18.65) that implements and references the state density‑bonus statute and sets processing and incentive rules (number of incentives, waiver/ reduction procedure, location‑based height incentives, ministerial submittal rules) § 18.65.02, § 18.65.10, § 18.65.12 . The HDO chapter also contains a site‑specific density bonus tied to equestrian amenities § 18.64.10 .
• ADUs / JADUs: Norco’s code contains accessory‑building provisions (Chapter 18.68) and accessory‑structure standards appear in multiple zone chapters, but an explicit ADU/JADU ordinance text or dedicated ADU section was not found in the retrieved materials; verify with the Planning Department for a current local ADU implementation document 18.68 (accessory building references) — Not found in retrieved materials for explicit ADU/JADU rules. See state ADU guidance at California ADU law and the State handbook for ministerial ADU requirements . (Local accessory building standards appear in the code — e.g., accessory building dimensions and setbacks — see Chapter 18.68 references and accessory‑building excerpts) § 18.68 .
• SB 9 / lot splits / two‑unit ministerial actions: there is no explicit SB 9 procedure text located in the retrieved zoning chapters; local application of SB 9 ministerial approvals (if adopted locally) should be confirmed at Norco Planning — Not found in retrieved materials; verify with the jurisdiction.
• Rent control and tenant protections: no municipal rent‑control program, tenant‑protection ordinance, or local rent‑control chapter was identified in the retrieved ordinances — Not found in retrieved materials; verify with the jurisdiction.

Practical takeaways for developers & homeowners

• Start at the zone chapter that will govern your parcel: the listing in § 18.03.02 tells you the zone code letter (for example R‑1, R‑3, C‑G, M‑1) that then points to the numeric standards and permitted uses § 18.03.02 .
• Expect design and site plan review: most projects call out Chapter 18.40 (site plan) and Chapter 18.41 (architectural review) and may require a CUP under Chapter 18.45 depending on use and any requested departures § 18.17.38, § 18.17.40 . (See Norco Design Review.)
• Parking and loading are handled citywide in Chapter 18.38 but expect zone chapters to require or modify those minima for specific projects (some senior housing special rules cite 0.75 spaces per unit and special handicapped/loading counts) § 18.25.26, § 18.17.06(d) . (Practical guidance: review Norco Parking.)
• If your site is in an overlay (PD, HDO, P‑E, AKO) read that overlay chapter first — overlays often change permitted uses, add required site plan elements, or require a Specific Plan § 18.27.46–52, § 18.64.14, § 18.28.04 . (See Norco Overlay Districts.)

Information Gaps / Verify with the Planning Department

• Local ADU/JADU implementation language or a dedicated ADU chapter was not present in the retrieved excerpts (search found accessory building rules and state ADU guidance but no local ADU §) — Not found in retrieved materials; verify current local ADU rules and any objective standards with Norco Planning (verify: Chapter 18.68 & Planning Dept.) .
• SB 9 (two‑unit/lot split ministerial procedure) language was not found in the supplied code excerpts — Not found in retrieved materials; verify if Norco has adopted local objective implementation or relies on state default.
• Local rent‑control/tenant‑protection rules were not located in the retrieved files — Not found in retrieved materials; verify via City records.

Source References

• Norco Municipal Code — Title 18 (Comprehensive Zoning Ordinance), Chapter 18.01 (Introduction) § 18.01.02, § 18.01.04 .
• Zones established and official zoning map — § 18.03.02, § 18.03.06 .
• Specific Plan chapter — Chapter 18.52 (intent, initiation, application requirements) § 18.52.02, § 18.52.04, § 18.52.06 .
• Housing Development Overlay (HDO) chapter (HDO use, site plan, density bonus) § 18.64.02, § 18.64.10, § 18.64.14 .
• Residential density bonus chapter — Chapter 18.65 (implementation of state density bonus law) § 18.65.02, § 18.65.10, § 18.65.12 .
• M‑1 zone standards and development table — § 18.24.08 .
• C‑G / Commercial general standards and screening — Chapter 18.29 (development standards, screening) § 18.29.70 .
• Hillside zone standards and setbacks — § 18.26.14 (development standards) § 18.26.04 (applicability) .
• PD overlay / Planned Development procedures — Chapter 18.27 § 18.27.46–52 (prelim./final dev plan) .
• Pedestrian‑Equestrian (P‑E) zone — Chapter 18.28 § 18.28.06, § 18.28.10 .
• Accessory building standards and animal‑keeping excerpts — Chapter 18.68 references and Chapter 18.13 animal‑keeping rules § 18.13.06, § 18.68 (excerpted) .
• Cross‑references to Site Plan, Architectural and Conditional Use chapters — Chapter 18.40, 18.41, 18.45 (as cited inside zone chapters such as R‑3 and R‑1) § 18.17.38, § 18.17.40 .
• State ADU/ADU handbook referenced for state law interactions — not Norco ordinance (state guidance excerpt included in user files) .