Santa Rosa — Landscaping and Screening

Last reviewed: July 2, 2026

Overview

This page summarizes what the Santa Rosa Zoning Code requires for landscaping and screening (planting, buffers, fences, walls, and tree standards) under the City Zoning regulations, principally Chapter 20‑34 (Landscaping Standards) and the fencing/screening rules in Chapter 20‑30. It explains the rules that matter to site planning, parking-lot design, and screening between commercial/industrial sites and residential neighbors, with the exact ordinance citations you will need to verify and quote on plans. See the City zoning overview for context on district rules and procedures.

Note: this page stays strictly inside the Zoning Code (Title 20) material retrieved from the uploaded Santa Rosa code files. Where the uploaded materials do not give a specific section number or parcel‑specific outcome, I mark that as "Not found in retrieved materials" or "Verify with the jurisdiction."

Important internal links (used where the term first appears): read this page together with Santa Rosa Development Standards, the city's Design Review rules, Parking standards, Overlay Districts that can modify landscaping, the ADU rules when relevant, and the state California Building Standards Code for building-permit items.

Key controlling ordinance references (what to read first)

• Chapter 20‑34, LANDSCAPING STANDARDS (range § 20‑34.010 – § 20‑34.070) — purpose, applicability, plan requirements, minimum landscaped-area dimensions, plant requirements, irrigation.
• Section § 20‑30.060 Fences, Walls, and Screening — fence heights, barbed wire, screening requirements adjacent to residential uses, vision‑triangle limits (see § 20‑30.070(E) for vision triangles).
• Section § 20‑34.060 (Irrigation System Design) — automatic irrigation requirement and WELO compliance.
• Section § 20‑42.170 (Storage, Outdoor) — outdoor storage areas must be enclosed and screened; wall/fence height and design requirements for storage areas.

(You will find these sections in the Santa Rosa Zoning Code excerpts in the uploaded files.)

How the code works — short synthesis (what planners enforce)

• Landscaping is mandatory for most new nonresidential and multi‑family projects and many single‑family projects; landscaping plans must be prepared by a qualified professional and approved before final approvals. See § 20‑34.010 – § 20‑34.070 and the plan requirements.
• Landscape areas have minimum dimensions, plant‑size and spacing rules, tree counts for parking and street setback areas, and irrigation standards tied to the city's Water Efficient Landscape Ordinance (Chapter 14‑30, WELO). See § 20‑34.050 and § 20‑34.060.
• Screening — where commercial/industrial sites touch residential zones or where outdoor storage/dumpsters/parking would be visible — the code requires permanent screening by landscape berms, tree planting, walls or fences and design review in many cases. See § 20‑30.060(H) and the storage rules in § 20‑42.170.

District-by-district breakdown (what differs by zoning district)

Below are the local districts and combining districts specifically referenced in the retrieved ordinance excerpts and the landscaping/screening rules that apply to them. Each district subsection summarizes purpose, typical uses (short), the landscaping/screening rules that commonly matter for projects, and where that district applies (how the regulation is triggered).

R-3 (Multi‑family residential)

• Purpose / Typical uses: multi‑family housing (apartment, condominium) — the district appears in the landscape-protection language for curbing and landscape buffer standards.
• Landscaping/screening rules that apply: required landscape areas in R‑3 and non‑residential zoning districts shall be protected with a minimum six‑inch concrete curb unless exempted by the review authority. See § 20‑34.050.C (protective curbing requirement). Trees and water‑efficient irrigation requirements also apply under § 20‑34.050 and § 20‑34.060.
• Where it applies / triggers: any new or expanding multi‑family project; landscape improvements are required prior to final building inspection. See § 20‑34.010 – § 20‑34.070.

Commercial and Industrial districts (commercial/industrial zones generally)

• Purpose / Typical uses: commercial retail, office, industrial, warehouses.
• Landscaping/screening rules that apply: proposed development within commercial or industrial zoning that is adjacent to residential zoning must provide screening between districts, subject to Design Review (§ 20‑30.060(H)). Outdoor storage areas must be fully enclosed and screened; outdoor storage enclosure height and materials are specified in § 20‑42.170.
• Where it applies / triggers: whenever a commercial or industrial site abuts residential zoning, when outdoor storage or large parking is proposed, or when design review is required by the land‑use approval. Verify need for design review under the development/project approval.

Gateway combining district (-G)

• Purpose / Typical uses: intended to manage visual entries to the City and require special design/landscaping at identified City entry corridors.
• Landscaping/screening rules that apply: the -G combining district requires substantial setbacks and dense landscaping at major entries (Highway 101, Highway 12), typically a 20‑foot planting area in addition to freeway landscaping, and screening of rear service yards/parking adjacent to highways by berms, dense trees or a combination of fences and landscaping. (Text appears in Gateway district standards in the code excerpts.)
• Where it applies / triggers: properties shown as part of the -G combining district on the Zoning Map; development there must satisfy the -G standards in addition to the base zoning. Note: the exact section number for the -G combining district language was present in the uploaded file excerpt but the specific § number for the -G text is Not found in retrieved materials — verify the exact citation with the City.

Scenic Roads combining district (-SR)

• Purpose / Typical uses: preserve scenic character adjacent to designated scenic roads (trees, rock walls, view corridors).
• Landscaping/screening rules that apply: stricter setback rules apply within 125 feet of the roadway edge; fences/walls/hedges have to comply with the primary zoning but scenic frontage often requires preservation of trees and rock walls and setbacks up to 50–100 feet on certain routes. See the -SR combining district standards in the code excerpt.
• Where it applies / triggers: when your parcel lies within 125 feet of the pavement edge of a designated scenic road; the -SR standards apply to that portion of the parcel. Verify parcel status on the Zoning Map.

-RH combining district (Rural Heritage)

• Purpose / Typical uses: maintain rural character; the code calls out fences/walls rules and tree preservation elements.
• Landscaping/screening rules that apply: fences in -RH are governed by § 20‑30.060 height limits (the -RH text defines "fence" broadly for that district). Additional tree‑removal rules cross‑reference Municipal Code Chapter 17‑24 (Trees).

Storage / Mini‑storage projects (use‑specific standards)

• Purpose / Typical uses: outdoor storage and self‑storage facilities have a specific block of standards.
• Landscaping/screening rules that apply: outdoor storage areas must be enclosed by a solid masonry wall and solid gate (substitution of solid wood fence possible with Zoning Administrator approval); wall/fence heights for storage are specified (not less than 6 feet nor more than 10 feet; >6 feet requires Minor Conditional Use Permit). Landscaping must be installed to lessen visual impact and must comply with § 20‑34.050. See § 20‑42.170.

Most decision‑relevant standards — quick table

Practical guidance (plain‑English planning notes)

• On plan submittal: include a full landscape plan prepared by a qualified designer, showing tree species, container sizes (15‑gal min for trees), irrigation zones, hydrozones, and a planting schedule that demonstrates the parking tree ratio and street setback tree counts — the city will check for § 20‑34 compliance and WELO consistency.
• If your site abuts residential zoning and you’re commercial/industrial, expect a screening requirement at design review: berms and dense border trees are a common accepted solution, but the City will consider walls/fences plus landscaping; see § 20‑30.060(H) and expect to coordinate with Design Review.
• For outdoor storage and mini‑storage, design the wall as masonry at 6–10 ft and show planting to lessen visual impact — a substitution to solid wood may be possible but requires administrative approval; >6 ft triggers Minor CUP. § 20‑42.170 controls.
• Fire‑prone / WUI areas: the landscape chapter explicitly cross‑references that properties in Wildland‑Urban Interface areas must meet fire‑resistant landscaping requirements per the Safety Element and applicable fire code; show compliance on plans. § 20‑34.050.F.1.c.

Checklist (what an applicant must satisfy)

• Submit a professional landscape plan (prepared by a landscape architect or equivalent) showing plant palette, sizes, hydrozones, and irrigation layout as required by § 20‑34.030.
• Show minimum landscape widths (≥ 3 ft, 4 ft where trees planted) and protective curbing where applicable (§ 20‑34.050.A, § 20‑34.050.C).
• Demonstrate tree counts: 1 tree per 5 parking spaces and 1 per 200 sq ft in street setbacks where required (§ 20‑34.050.G).
• Provide WELO‑compliant water‑efficient irrigation design and automatic irrigation for landscaped areas (§ 20‑34.060; Chapter 14‑30).
• If adjacent to residential zones, include screening treatment (berm/trees/fence/wall) and call out materials for Design Review (§ 20‑30.060(H)).
• For outdoor storage: show enclosure type (masonry wall or approved substitution), height (6–10 ft), gate design, and landscaping (§ 20‑42.170).
• Check overlay districts (e.g., -G, -SR, -RH) and apply the more restrictive standards where they apply (verify applicability on the Zoning Map). Not all overlay citations are complete in the uploaded excerpts — verify map designation.

Risks & Ambiguities

Plain‑English Summary

Santa Rosa's Zoning Code (Chapter 20‑34) requires professionally prepared landscape plans for most new projects, minimum landscape widths and tree sizes, automatic irrigation under the city's WELO rules, and screening (berms, trees, fences/walls) where commercial/industrial sites meet residential zones; special combining districts (for city gateways and scenic roads) add stricter planting and setback expectations. Key rules to show on plans are the minimum widths (3 ft / 4 ft), tree counts (1 per 5 parking spaces), irrigation design (§ 20‑34.050, § 20‑34.060) and fence/wall treatments for outdoor storage (§ 20‑42.170).

Source References

• Chapter 20‑34, LANDSCAPING STANDARDS (range § 20‑34.010 – § 20‑34.070) — ordinance landscaping chapter text and purpose.
• § 20‑34.030 (Plan preparation / content requirements for landscape plans).
• § 20‑34.050 (Landscape standards: minimum widths, plant sizes, trees, parking ratios, safety / sightlines).
• § 20‑34.060 (Irrigation System Design; WELO compliance referenced).
• § 20‑30.060 (Fences, Walls, and Screening; barbed wire and screening requirements).
• § 20‑30.070(E) (Vision triangles — height limits for landscaping near intersections).
• § 20‑42.170 (Storage, Outdoor — enclosure, wall/fence height, and landscaping for outdoor storage).
• Gateway combining district (-G) landscaping guidelines (entry planting, 20‑ft planting strips, screening language) — excerpt in code files (exact § citation Not found in retrieved materials; verify in the official code).
• Scenic Roads combining district (-SR) excerpt (scenic setback and tree/rock wall preservation language) — excerpt in code files (exact § citation Not found in retrieved materials; verify).

Retrieved passages

• Santa Rosa Zoning Code (§ 1) High relevance show source text
• Santa Rosa Zoning Code (§ 1) High relevance show source text
• CWUIC § 20 (Section 20-34.060) High relevance show source text
• Santa Rosa Zoning Code (Article 8) High relevance show source text
• CWUIC § 65850.6 (Title 24) High relevance show source text
• Santa Rosa Zoning Code (Chapter 20-62) High relevance show source text
• Santa Rosa Zoning Code High relevance show source text
• CBC § 20 (Chapter 20-61) High relevance show source text

Cited sections

• Chapter 20‑34, LANDSCAPING STANDARDS (range **§ 20‑34.010 – § 20‑34.070**) — ordinance landscaping chapter text and purpose. (Chapter 20)
• § **20‑34.030** (Plan preparation / content requirements for landscape plans).
• § **20‑34.050** (Landscape standards: minimum widths, plant sizes, trees, parking ratios, safety / sightlines).
• § **20‑34.060** (Irrigation System Design; WELO compliance referenced).
• § **20‑30.060** (Fences, Walls, and Screening; barbed wire and screening requirements).
• § **20‑30.070(E)** (Vision triangles — height limits for landscaping near intersections).
• § **20‑42.170** (Storage, Outdoor — enclosure, wall/fence height, and landscaping for outdoor storage).
• Gateway combining district (-G) landscaping guidelines (entry planting, 20‑ft planting strips, screening language) — excerpt in code files (exact § citation Not found in retrieved materials; verify in the official code). (§ citation)
• Scenic Roads combining district (-SR) excerpt (scenic setback and tree/rock wall preservation language) — excerpt in code files (exact § citation Not found in retrieved materials; verify). (§ citation)
• SantaRosa_ZoningCode.md

• Official Santa Rosa code library