Local zoning · Riverside

Riverside — Landscaping and Screening

Landscaping and Screening under the Riverside local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This page summarizes what the City of Riverside's Zoning Code (Title 19) requires for landscaping, screening, buffers, fences, walls, and trees. It pulls the city's controlling requirements for common situations (residential yards, multi‑family, commercial/office, industrial, mobile home parks, and outdoor storage) and explains which chapters/sections to read and where to file for review. For zoning context see the Riverside Zoning overview and for how landscaping interacts with site design see the City's Development Standards guidance.

Core rules, briefly

  • All required setback planting and street setbacks must be planted and maintained under the City's Water Efficient Landscaping rules (the "WELO") in Chapter 19.570 — applicability and thresholds are in § 19.570.020.
  • Fences, walls and hedges have explicit maximum heights and special front‑yard rules in § 19.550.030 (height/location provisions).
  • Screening of outdoor storage (commercial/industrial) normally requires a minimum six‑foot solid decorative masonry wall (with a three‑foot limit within front/street setback areas) or equivalent landscaping/berm approved by the Community & Economic Development Director — see § 19.510.040.
  • When industrial property abuts residential uses the Code requires a landscape planter buffer at least 20 feet wide with layered trees (two staggered rows, spacing and maturity rules) in the industrial standards.
  • Mechanical equipment, trash enclosures, and on‑site utility screening are handled in Chapters 19.555 and 19.554 respectively (referenced throughout the zone chapters).

District-by-district breakdown

Each subsection below names the local zone(s) exactly as used in Title 19, summarizes the landscaping/screening purpose, typical uses, key dimensional / planting / wall rules and where to look in the Code.

Single‑Family Residential — RA‑5, RC, RR, RE, R‑1 series

  • Purpose & typical uses: standard single‑family neighborhoods and low‑density lots; primary purpose is residential. See the Residential Development Standards tables in Chapter 19.100.
  • Landscaping/screening rules: front and street‑side setback areas must be suitably landscaped and continuously maintained per Chapter 19.570; such setback areas may not be used for parking or accessory storage. See § 19.100.040 (E).
  • Fences/walls: front yard fences generally limited to four feet (openwork options above 3 ft), but in RA‑5, RC, RR, RE front‑yard fences/walls may be up to six feet with openwork above 3 ft (solid proportion limits apply). Side/rear yards in single‑family zones may have fences/walls up to seven feet if not visible from the public right‑of‑way (and eight feet where abutting a non‑residential property under certain conditions). See § 19.550.030 (A–B).
  • Design/review notes: small infill or multi‑unit projects may trigger the Design Review process; landscaping plans are required to comply with WELO and may be reviewed during plan check.

Multi‑Family Residential — R‑3, R‑4

  • Purpose & typical uses: multi‑unit residential developments (apartments, condos). See Chapter 19.100 (Additional regs for R‑3/R‑4 in § 19.100.070).
  • Landscaping/screening rules: front, side and rear yard setback areas adjacent to streets must be suitably landscaped and maintained per Chapter 19.570; recreational vehicle or special parking areas must be screened (e.g., RV parking screened by an 8‑ft block wall in some cases). See § 19.100.070 and related provisions.
  • Fences/walls and materials: perimeter and amenity fences are regulated; solid fences between building and public right‑of‑way are often limited to 3 ft, openwork 4 ft above 3 ft as noted in the residential materials rules. See Chapter 19.100 and § 19.550.030.

Commercial & Office — O, CR, CG, CRC

  • Purpose & typical uses: retail, offices, restaurants (varies by subzone). See Table 19.110.030 for development standards.
  • Landscaping/screening rules: setbacks and landscape buffers are zone‑specific; when a commercial/CRC property abuts residential the Code requires additional setbacks and at least 5–10 ft of landscaping in the setback (see table notes and Table 19.110.030). Parking lot landscaping follows Chapter 19.580 and must meet WELO requirements in Chapter 19.570.
  • Design review: most commercial projects require design review and full landscape/irrigation plans before building permits.

Industrial / Business Park — BMP, I, AIR (and AI)

  • Purpose & typical uses: warehousing, manufacturing, business parks. See Chapter 19.130 and the BMP/I/AIR development tables (Table 19.435.030).
  • Key landscaping/screening standards:
    • Where industrial abuts a residential zone the Code can require an 8‑ft masonry wall (measured from the residential grade) or, in other industrial outdoor storage contexts, a 6‑ft masonry wall with restricted height near the front. See § 19.130.040 (B & C) and § 19.510.040.
    • Buffering: minimum 20‑ft planter strips when industrial parcels are adjacent to residential, with layered composition, a minimum of two rows of trees staggered at required spacing and trees to be mature at planting; remainder stabilized with groundcover/mulch. See industrial buffer rules in § 19.130.040 (G).
    • For BMP zone special front‑setback landscaping rules apply (e.g., in some BMP front setbacks a portion must be landscaped — see Table 19.435.030 notes).

Public Facilities — PF

  • Purpose & typical uses: government buildings, utilities, parks. See Chapter 19.140.
  • Landscaping/screening: required per Chapter 19.570 for all setbacks; utility substations, maintenance yards, storages must be screened from public view by block walls, landscaping, or durable fencing with minimum 8‑ft height for industrial character facilities. See § 19.140.030 (C–D).

Mobile Home Parks

  • Specific standards: mobile home parks have their own chapter (Chapter 19.210) requiring a minimum six‑foot decorative solid masonry wall to enclose the park and serve as a visual screen; when the park abuts a residential use a ten‑foot landscape setback along the common property line is required; perimeter setbacks must be landscaped per WELO Chapter 19.570. See § 19.210.050 (D–E).

Overlays and Special Districts (examples)

  • Building Setback Overlay (X) can change which yard areas must be landscaped; when an overlay applies, the overlay setback controls — those special setbacks still require landscaping unless the overlay says otherwise. See Chapter 19.180. When in doubt check the City's overlay maps.

Outdoor storage, trash, utilities, and equipment screening (site elements)

  • Outdoor storage screening: generally 6 ft solid masonry wall, limited to 3 ft where within required front/street side setback areas; alternative screening (landscaping/berm/fence) may be approved if equivalent visual screening is achieved; screening must be in place before use. See § 19.510.040 and related outdoor storage chapters 19.285 / 19.510.
  • Trash enclosures: must meet Chapter 19.554 standards; mechanical equipment screening follows Chapter 19.555 (both are referenced by zone chapters).
  • Lighting for landscaped areas: must comply with light/glare limits in § 19.590.070 and Chapter 19.556.

Quick reference table — decision‑relevant standards

Topic Typical requirement (Riverside) Code reference
WELO threshold (landscape plan required) New landscapes ≥ 500 sq ft; rehabilitated landscapes ≥ 2,500 sq ft § 19.570.020
Front yard solid fence height (most zones) 4 ft solid max (openwork allowances above 3 ft) § 19.550.030 (A.2)
Front yard fence height (RA‑5 / RC / RR / RE) 6 ft allowed in required front yard with openwork rules above 3 ft § 19.550.030 (A.1)
Side/rear fence height (single‑family) Up to 7 ft (not visible from ROW); up to 8 ft where abutting non‑residential § 19.550.030 (B.1.a–b)
Outdoor storage screening 6 ft solid decorative masonry wall; limited to 3 ft within front setbacks; alternatives possible with approval § 19.510.040 (A)
Industrial‑to‑residential buffer 20 ft planter strip, two rows of trees (staggered; spacing rules); trees mature at planting Industrial standards (buffering) § 19.130.040 (G)
Mobile home park perimeter wall 6‑ft decorative solid masonry wall (plus 10‑ft landscape buffer where adjacent to residential) § 19.210.050 (D–E)
Landscaping at street setbacks Setbacks abutting public streets must be fully landscaped per WELO Zone chapters referencing Chapter 19.570 (e.g., § 19.100.040 (E), § 19.140.030 (C)) file

Practical guidance & interpretation notes

  • Always start with the applicable zone chapter in Title 19 and then read the cross‑references: Chapter 19.570 (WELO) for planting/irrigation performance; Chapter 19.550 for fences/walls; Chapter 19.510 / 19.285 for outdoor storage; Chapter 19.554/19.555 for trash/mechanical screening. The code repeats these cross‑references inside each zone's development standards. file
  • If your site is in an overlay (for example a Building Setback Overlay) overlay rules control setbacks and may change where walls/landscaping go; check Chapter 19.180 and the overlay map.
  • Where the Code allows “alternative screening” (e.g., landscaping or berms in lieu of masonry walls), that alternative must achieve equivalent visual screening and is subject to the Community & Economic Development Director’s approval — build your landscape plan to show visual equivalence and maintenance. See § 19.510.040 (A).
  • If your project triggers design review (common for multi‑family, commercial, industrial, specific plans), you must submit the full landscape and irrigation documentation package and the reviewing authority will enforce WELO standards; see § 19.710.030 about when landscaping requires design review approval.
  • Parking lot landscaping and any parking‑related screening must also meet the Parking standards in Chapter 19.580 and WELO; parking islands, tree spacing and tree species choices affect compliance.

Checklist

  • Confirm zoning for the parcel and any applicable overlays (check Planning/Zoning map).
  • Determine if WELO landscape documentation is required (≥ 500 sq ft new landscapes or ≥ 2,500 sq ft rehabilitated landscapes) per § 19.570.020.
  • Prepare a landscape documentation package showing MAWA calculations or use the prescriptive WELO worksheet (§ 19.570.130).
  • Design fences/walls to meet § 19.550.030 height/location rules and show visibility from ROW.
  • For outdoor storage or industrial sites, plan a 6‑ft masonry wall or alternate screening and, if adjacent to residential, a 20‑ft planter with layered trees (two rows) mature at planting; show maintenance plan. file
  • Include trash enclosure and mechanical equipment screening per Ch. 19.554 / 19.555.
  • If in a zone that requires design review, submit landscape and irrigation plans as part of design review / site plan review (§ 19.710.030).

Risks & Ambiguities

Issue Why it matters What to verify
Overlay district modifies setbacks Overlay setbacks can override base zone setbacks and the landscaping requirement may move or change Check overlay map and Chapter 19.180; verify which setback controls. Verify with the jurisdiction.
“Mature” tree requirement in industrial buffers The Code requires trees to be mature at planting in some industrial buffers — harder and more expensive than typical 15‑gallon plantings Confirm species/size the Approving Authority expects and document maintenance/irrigation. Verify species and size with staff.
Alternative screening approval Landscaping/berm alternatives are discretionary approvals (Director) and must demonstrably achieve equivalent screening Prepare visual simulations and be ready to accept a masonry wall condition if proposal not convincing. Verify approval standard with staff.
Front yard wall height measurement Walls in front/street setbacks have a strict 3‑ft solid limit — measurement rules and retaining wall components can change allowed height Review § 19.550.030 measurement rules and show grades and retaining walls on plans. Verify with jurisdiction.
Interaction with parking standards Landscaping islands and setbacks affect parking layout (and vice versa) Cross‑check Chapter 19.580 parking island/tree spacing requirements with WELO planting areas. Verify with plan reviewer.

Plain‑English summary

If you build or re‑landscape in Riverside you must follow the city's Water Efficient Landscaping rules, meet the specific fence/wall height limits (shorter in front yards), and provide required screening for trash, mechanical equipment and outdoor storage (industries often need masonry walls plus wide tree buffers). Design review may apply depending on the zone. Start with your parcel's zoning and then build a WELO‑compliant landscape plan; expect the Community & Economic Development Department to check screening and fence heights. file

Source References

  • Riverside Zoning Code, Title 19 (general): Title 19 — ZONING; source (print export).
  • Fences, walls, hedges — § 19.550.030 (Height and location provisions).
  • Water Efficient Landscaping and Irrigation (WELO) — Chapter 19.570, including applicability § 19.570.020 and prescriptive worksheet § 19.570.130. file
  • Outdoor storage & screening — § 19.510.030 / § 19.510.040 (site standards and screening of outdoor storage). file
  • Industrial buffer standards (planter width, two rows of trees, maturity) — industrial zone standards; see § 19.130.040 (G).
  • Mobile Home Park development standards (walls and landscape buffer) — § 19.210.050 (D–E).
  • Design review applicability for landscaping — § 19.710.030 and related design review rules.
  • Parking and landscape interactions — Chapter 19.580 (Parking and Loading) and Commercial/Industrial development tables (see Table 19.110.030 and Table 19.435.030). file

If you need direct, parcel‑specific guidance (e.g., exact wall measurements from the highest adjacent grade, whether your proposed planting counts as "mature at planting", or the effect of a specific overlay), Verify with the jurisdiction or request a pre‑application meeting with Riverside Planning (Community & Economic Development).

Sources

Retrieved passages

  • Riverside Zoning Code (§33) High relevance
  • Riverside Zoning Code (§ 9) High relevance
  • Riverside Zoning Code (§36) High relevance
  • Riverside Zoning Code (Chapter 19.590) High relevance
  • Riverside Zoning Code (§ 31) High relevance
  • CWUIC § 65850.6 (Title 24) High relevance
  • Riverside Zoning Code (Title 7) High relevance
  • Riverside Zoning Code (Chapter 19.440) High relevance
  • Riverside Zoning Code (Chapter 19.570) High relevance
  • Riverside Zoning Code (Chapter 19.149) Medium relevance
  • Riverside Zoning Code (§ 1) Medium relevance
  • Riverside Zoning Code (Chapter 19.440) Medium relevance
  • Riverside Zoning Code (Chapter 19.570) Medium relevance
  • Riverside Zoning Code (Chapter 19.570) Medium relevance
  • Riverside Zoning Code (Chapter 19.555) Medium relevance
  • Riverside Zoning Code (Section 19.590.070) High relevance
  • Riverside Zoning Code (Chapter 19.149-Airport) High relevance
  • Riverside Zoning Code High relevance
  • Riverside Zoning Code (Chapter 19.149) High relevance
  • Riverside Zoning Code (§81) Medium relevance
  • Riverside Zoning Code (§ 6) Medium relevance
  • Riverside Zoning Code (Chapter 19.550) Medium relevance
  • Riverside Zoning Code Medium relevance
  • CBC § 2 (chapter and) Medium relevance
  • Riverside Zoning Code (Chapter 19.554) Medium relevance
  • Riverside Zoning Code (Article X) Medium relevance
  • CRC § 19 (§ 19) Medium relevance
  • Riverside Zoning Code (Title 19) Medium relevance

Cited sections

Frequently asked questions

Do front yard fences have the same height limits everywhere in Riverside?

No. In most zones front solid fences are limited to 4 ft (with openwork allowances above 3 ft), but in the RA‑5, RC, RR, and RE zones a front‑yard fence or wall may be up to 6 ft under the specific openwork rules; measurement and visibility rules apply. See § 19.550.030.

When do I have to comply with Riverside's Water Efficient Landscaping rules?

WELO applies to new landscape projects ≥ 500 sq ft and rehabilitated projects ≥ 2,500 sq ft (and public projects regardless of size). See § 19.570.020 for thresholds and exceptions.

If my industrial lot borders homes, how wide must the landscape buffer be?

When an industrial parcel is adjacent to residential the Code requires a 20‑ft minimum landscape planter strip along the shared property line with layered plantings and two rows of trees (staggered, spacing standards apply). See the industrial buffering provisions in § 19.130.040 (G).

Can I use plants instead of a masonry wall for screening outdoor storage?

Possibly — § 19.510.040 requires outdoor storage to be visually screened (commonly a 6‑ft masonry wall), but alternative screening (landscape, berms, fences) may be approved by the Community & Economic Development Director if equivalent visual screening is achieved. Plan visual equivalency and maintenance documentation.

Do trash enclosures and mechanical equipment need special screening?

Yes. The Code references Chapter 19.554 for trash enclosures and Chapter 19.555 for outdoor equipment screening; zone chapters repeatedly require compliance with those chapters. Submit enclosure and screening details with your landscape/site plans.

Will landscaping ever require design review?

Yes — many commercial, office, industrial, and multi‑family projects require design review; the Code requires no new building or exterior alteration (including new landscaping/irrigation in some cases) commence without design review approval where applicable. See § 19.710.030.

How do parking requirements affect my landscape layout?

Parking lot landscaping and setbacks are regulated by Chapter 19.580; islands, striping, and tree spacing must be coordinated with WELO requirements and the zone’s landscape/setback rules so you should prepare a combined parking + landscape plan for plan check. See Chapter 19.580 and the commercial/industrial development standards.

Is a masonry wall always required next to a residential zone?

Not always — the Code often requires walls where industrial or storage uses adjoin residential (e.g., 8‑ft walls in some industrial adjacency circumstances; 6‑ft for outdoor storage) but the approving authority can accept alternatives if they provide equivalent screening. Check the exact adjacency rule in the applicable zone standard (e.g., § 19.130.040 for industrial standards and § 19.510.040 for outdoor storage). file

Where do I find the standard plant sizes, species or irrigation requirements?

The WELO chapter (Chapter 19.570) contains definitions, compliance methods, MAWA calculations and prescriptive options; it also references WUCOLS and requires irrigation design and documentation. See § 19.570.120 and § 19.570.130 for required documentation. file

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