Paso Robles Zoning, Planning & Building Codes

Last reviewed: July 3, 2026

Overview

Paso Robles organizes land use and development through a consolidated zoning title (Title 21 in the uploaded code) that pairs a citywide zoning map with district-specific rules, overlay and specific‑plan controls, and a multi-step review/permit program. The code adopts a list of Specific Plans (e.g., SP‑1 Union 46, SP‑2 Borkey, SP‑3 Uptown Town Center, SP‑4 Olsen — South Chandler Ranch, SP‑5 Beechwood) that govern their areas and can supersede the base zoning where inconsistent (§ 21.05.010) . Citywide measurement, development‑standards tables, and review authorities tie the detailed standards to the map and to project‑level approvals (§ 21.41.010; Tables 21.33.030‑1, 21.34.030‑1) .

How Paso Robles's code is organized

• The municipal zoning provisions are adopted as a single zoning title that includes a zoning map, district use tables, development standards tables, administrative procedures, and specialized chapters for overlays and specific plans; the zoning map is adopted and changed by ordinance (§ 21.06.010) .
• The code groups provisions into topical chapters: use regulations (Table 21.32‑1), commercial/industrial development standards (Table 21.34.030‑1), residential development standards (Table 21.33.030‑1), rules of measurement (§ 21.41.010), permit procedures and review authorities (Chapter 21.08; Chapter 21.09), and special chapters for conditional uses, development plans, site/plot plans, design standards, signs, and historic preservation (§§ 21.16, 21.17, 21.18, 21.50, 21.52, 21.62) .

Zoning district families

Paso Robles uses base district families for residential, commercial, office, industrial and other specialized uses. Representative districts and where to find their standards in the code:

• Residential base districts: R‑A, R‑1, R‑2, R‑3 — development standards shown in Table 21.33.030‑1 (minimum lots, setbacks, lot coverage, etc.) (§ 21.33.030 series) .
• Commercial / office / mixed districts: OP, CP, C‑1, C‑2, C‑3 — use tables and the General Commercial/Industrial development standards are in Table 21.34.030‑1 (§ 21.34.030) .
• Industrial / airport / public: M, PM, AP (Airport) — Airport district purpose and limits described in the code (AP purpose identifies limitations on residential uses due to noise/safety) (§ 21.04.*; § 21.34.030 series) .
• Mobile‑home, lodging, and other special base or conditioned districts are addressed in separate sections with special standards (see Chapter 21.33 mobile home standards; lodging overlay rules) (§ 21.33.*; § 21.36.040) .

(For the complete list of base zoning use regulations see Table 21.32‑1 and related tables referenced in Chapters 21.32–21.36) (§ 21.32 series) .

Citywide development standards

• Rules of measurement (how to measure setbacks, height and round fractional results) are centralized in § 21.41.010–.030; these govern all district tables and how the code counts units, dimensions, and parking (§ 21.41.010 et seq.) .
• Setbacks, height, lot coverage and minimum lot sizes are stated in district tables: for example, many commercial/industrial districts reference a standard height limit of 35 ft in the general table (see Table 21.34.030‑1) (§ 21.34.030‑1) . Setback specifics adjacent to single‑family zones (R‑1) are addressed in objective design/setback subsections (see § 21.50.090(A)) .
• Parking requirements are in a dedicated chapter — consult Chapter 21.48 for vehicle parking and loading standards; mixed‑use and multi‑family projects are explicitly tied back to those parking rules in their overlay/table notes (§ 21.48; Mixed‑Use table references) .
• Objective design standards for multi‑family and mixed‑use projects are collected in Chapter 21.50 (objective standards that supplement numeric tables), and some overlays (e.g., Mixed‑Use Overlay) make those standards mandatory (§ 21.50; Table 21.36.050‑1) .
• Landscaping, screening and refuse/recycling requirements are specified in dedicated chapters and referenced from the district standards (see Chapters 21.51 and the landscaping/screening rules referenced throughout) (§ 21.51; multiple district standards) .

For a practical dive into numeric standards (front/side/rear setbacks, lot coverage, FAR where used, and parking counts), see the district tables (Tables 21.33.030‑1, 21.34.030‑1, and the Mixed‑Use table 21.36.050‑1) and the rules of measurement in § 21.41.010 .

Specific plans & overlays

• Specific plans are adopted and listed in § 21.05.010; the code identifies several adopted specific plans (SP‑1 through SP‑5 and reserved numbers), and a specific plan governs all uses and development within its boundaries once adopted (§ 21.05.010; § 21.14.010(B)) .
• The code provides a Specific Plan chapter that explains initiation, amendment, and how conflicts are resolved (specific plans supersede the title where inconsistent) (§ 21.14.010–.040) .
• Overlay districts are implemented through Chapter 21.36 and include: Historic Preservation (HP) (§ 21.36.030), Highway‑Oriented Sign (HOS) (§ 21.36.020), Planned Development (PD) (§ 21.36.060), Special Planned Development (SPD) (§ 21.36.070), Specific Plan Overlay (§ 21.36.080), and a Lodging overlay (L) among others (§ 21.36.*) .
• The historic overlay requires review against Chapter 21.62 and referral of new construction in HP zones to the planning commission; specific guidelines are adopted for architectural review in HP areas (§ 21.36.030) .

See the overlay chapters for how overlay standards layer on top of base district rules and for references to the city’s Historic Preservation program and sign controls (§ 21.62; § 21.52) .

Building permits & review

• Permit path: many projects begin with an application processed per the application procedures in Chapter 21.09; depending on thresholds, projects will require a plot plan (§ 21.18), site plan (§ 21.17), development plan (§ 21.16), and/or building permit tied to California's codes — confirm construction code compliance with the California Building Standards Code (Title 24) at permit submittal (§ 21.09; § 21.15) .
• Development review: the city requires development review for many improvements before a building permit will issue (see Chapter 21.15 and the cross‑references in district standards) (§ 21.15; § 21.34.030) .
• Review authorities and appeals: day‑to‑day approvals are handled by the Zoning Administrator (§ 21.08.050), the Development Review Committee (DRC) for site/architectural/landscaping matters (§ 21.08.040), and the Planning Commission for quasi‑judicial permits and CEQA decisions per the review tables (Table 21.08.070‑1) — appeals routes are set out in Chapter 21.25 (§§ 21.08.040–.060; Table 21.08.070‑1) .
• Discretionary entitlements: Conditional Use Permits and Administrative Use Permits are processed under Chapter 21.19 and require mandatory findings (consistency, compatibility, suitability) before approval (§ 21.19.050) .
• Design and objective standards: objective design standards for mixed‑use and multi‑family projects (Chapter 21.50) apply as mandatory checklists in many overlays and project reviews; in some overlay tables the code requires submission of a sign program, storage, and open‑space calculations as part of discretionary review (see Table 21.36.050‑1) (§ 21.50; Table 21.36.050‑1) .

Practical orientation: start with a pre‑application with planning staff, determine whether your project is inside a Specific Plan or Overlay (which can change what standards apply) (§ 21.14.010; § 21.36.*), then confirm which of the plot/site/development plan tracks applies and which review body will act (zoning administrator, DRC, planning commission) (§ 21.09; §§ 21.08.040–.050) .

State housing law in Paso Robles

• Accessory dwelling units: Paso Robles has a local ADU chapter (Chapter 21.58) that integrates state ADU law into local practice; the code notes General Plan/code interplay and references Chapter 21.58 for ADU standards and to Chapter 21.41 measurement rules where applicable (§ 21.58; § 21.41.010) . For statewide changes and local implementation guidance, Paso Robles cross‑references state ADU law and the California ADU rules (see local Chapter 21.58 and state law summary) (§ 21.58) .
• Urban dwelling units / SB 9‑style urban lot split provisions: the code contains an “urban dwelling unit” chapter (Chapter 21.65) that defines limits on units created through urban lot splits, including a cap that “no more than two dwelling units … may be built on a lot that results from an urban lot split (Chapter 22.34)” and establishes minimum unit sizes and required setback/height combinations (see Table 21.65.050‑1) (§ 21.65; Table 21.65.050‑1; Chapter 22.34) .
• Density bonus and affordability incentives: the local code includes a Density Bonus chapter (Chapter 21.61) that implements state density bonus law and contains rounding rules and references to state bonus calculations (§ 21.61; § 21.41.020(C)) .
• How state law is applied: where a specific plan is silent the zoning title governs (the director determines applicability), and where conflict exists the specific plan controls — the code therefore layers state law implementation through local chapters while preserving the specific plan’s primacy in its area (§ 21.14.010(B)) .

Practical links: consult the city’s parking chapter when calculating on‑site stalls (see Chapter 21.48) and the objective design chapter for multi‑family rules (Chapter 21.50) — these are the local chapters you will most commonly reconcile with state ADU and density bonus entitlements (§ 21.48; § 21.50) .

(Inline resources used on this page: parking, design review, development standards, overlays, historic preservation, and ADUs are referenced below as internal quick links for common topics: parking, design review, Paso Robles Development Standards, Paso Robles Overlay Districts, Paso Robles Historic Preservation, Paso Robles ADUs, and the California Building Standards Code.)

Source References

• Paso Robles Zoning Code (Title 21, uploaded extract): § 21.05.010 (Adopted Specific Plans)
• Pase Robles Zoning Map & map rules: § 21.06.010 (Zoning Map)
• Review authorities, DRC and Zoning Administrator: § 21.08.040 (Development Review Committee); § 21.08.050 (Zoning Administrator); review table references Table 21.08.070‑1
• Specific Plan initiation & application rules: § 21.14.010 (Purpose & Applicability of Specific Plans)
• District development standards and commercial table: Table 21.34.030‑1; § 21.34.030 (General Commercial/Industrial development standards)
• Residential tables and urban dwelling unit provisions: Table 21.33.030‑1; Chapter 21.65 (Urban Dwelling Units) and Table 21.65.050‑1 (height/setback combos)
• Mixed‑Use overlay and objective design standards: Table 21.36.050‑1; Chapter 21.50 (Objective Design Standards) and references to parking and refuse rules (§ 21.48; § 21.51)
• Overlays: Chapter 21.36 (HOS, HP, PD, L, etc.) — e.g., § 21.36.020 (HOS), § 21.36.030 (HP), § 21.36.060 (PD)
• Rules of measurement: Chapter 21.41 (Rules of Measurement and rounding; density rounding guidance)