Isleton — Landscaping and Screening

Last reviewed: July 2, 2026

Overview

This page summarizes what the City of Isleton's Title 17 Zoning ordinance requires for landscaping, screening, fences/walls/hedges and related site planting in each district. It interprets the rules you must follow for buffers between uses, parking-lot and street-front landscaping, screening of open storage, and height/vision limits for fences — and points to the ordinance sections an applicant and reviewer will use. The city's site-plan and design-review rules make landscaping and screening a standard condition of approval under site plan review. See the city's zoning overview for context and the development standards for dimensional rules: Isleton Zoning and Isleton Development Standards (/us/california/isleton/development-standards).

How this page is grounded

All requirements cited below come from Isleton's adopted zoning ordinance, Title 17. Where the code prescribes a rule I show the controlling section (using the § glyph) and the file-search citation for the municipal code extract used to prepare this page.

District-by-district breakdown

Note: the ordinance uses district abbreviations such as R-1 (single-family), RM (multi‑family), C and CC (commercial), I (industrial), UR (urban reserve), and RCO (a mixed/residential-commercial overlay referenced in screening rules). Each district subsection below lists the ordinance purpose/typical uses, then the landscaping/screening rules that apply.

R-1 (single‑family residential — includes R-1-5 and R-1-6 variants)

• Purpose & typical uses: single-family dwellings; lot and yard standards vary by the R-1 subtype (see § 604 for R‑1‑6 / R‑1‑5 dimensional specifics). § 604 .
• Landscaping/screening rules:
  • Front-yard fence/wall height is limited: fences or walls in a required front yard may not exceed three feet in height (except limited chain-link allowance described in the code). § 604.A.2 .
  • Side/rear property line fences may be up to seven feet along side and rear lines. § 604.A.1 .
  • Corner-lot sight-line (vision triangle) limit: a triangular area at the street corner limits fence/hedge height to maintain visibility (the code uses a diagonal measurement — see § 604.A.3). § 604.A.3 .
• Where it applies: all lots zoned R-1 as defined in Title 17; additional site-plan conditions (e.g., landscaping for multi‑unit projects) may apply under site plan review. § 604 and § 1514 .

RM (multi‑family residential)

• Purpose & typical uses: multi‑family housing; projects with 10+ units are subject to PUD/site-plan rules and open‑space landscaping minimums. § 1514 .
• Landscaping/screening rules:
  • Multi‑family projects ≥10 units: must follow planned unit development (PUD) procedures and include minimum landscaped open space; projects with 20+ units must provide 20% of net site area as landscaped open space; smaller multi‑family projects have lower percentages (see § 1514.D–F). § 1514.D–F .
  • Parking-lot landscaping: in RM, C, or I districts, at least 5% of the interior of a parking area must be landscaped; shade trees are expected at roughly one tree per five parking spaces and automatic irrigation is required. § 1107.B .
• Where it applies: multi‑family zoned parcels; site plan/PUD review will lock in screening and irrigation requirements. § 1514 .

C / CC (Commercial and Central Commercial)

• Purpose & typical uses: retail, services, and other commercial uses; CC is referenced where adjacency to residential requires additional buffering.
• Landscaping/screening rules:
  • When an off‑street parking area in a C district adjoins a UR, R, or RM district, an ornamental solid wall, vine‑covered open fence, or compact screening device shall be located on the property line common to the districts (except in required front yard). § 1107.A .
  • Where commercial sites adjoin UR, RCO, R or RM, the planning commission may require an ornamental solid wall or fence minimum seven feet in height on the common property line (except front yards). This rule appears in multiple district property‑standards provisions (example: § 804.A.1 and § 905.A.1). § 804.A.1 ; § 905.A.1 .
  • Open storage visible from residential zones must be screened by a seven‑foot solid wall/fence or an equivalent screening device; materials stored must not be visible above the screen. § 804.A.2 .
• Where it applies: all commercial parcels; screening and parking landscaping are common conditions of site plan and design review. See the city's parking rules for coordination of landscape islands and curb cuts: Isleton Parking (/us/california/isleton/parking) and Isleton Design Review (/us/california/isleton/design-review). § 1107 .

I (Industrial)

• Purpose & typical uses: manufacturing, storage, distribution.
• Landscaping/screening rules:
  • Where an industrial site adjoins UR, RCO, R, RM, or CC, a solid wall or screen fence seven feet in height (or an alternative specified by the planning commission) is required at the common property line, except in a required front yard. § 905.A.1 .
  • Street trees, frontage landscaping and off‑street parking area landscaping with automatic irrigation are required for industrial sites. § 905.A.6 .
  • Open storage must be within a screened area (ornamental solid wall/fence/compact evergreen hedge) not less than seven feet high. § 905.A.3 .
• Where it applies: industrially zoned parcels; site plan review enforces these measures. § 905 .

UR (Urban Reserve) and RCO (Residential‑Commercial Overlay)

• Purpose & typical uses: UR preserves land for future urban expansion; RCO is referenced as a neighboring district to be buffered from more intensive uses.
• Landscaping/screening rules: adjacency to UR/RCO triggers the seven‑foot screen/wall requirement when the adjoining site is higher intensity (examples in § 804.A.1, § 905.A.1). § 804.A.1 ; § 905.A.1 .
• Where it applies: UR lands and locations identified in the zoning map; verify overlay boundaries using the city's overlay districts map: Isleton Overlay Districts (/us/california/isleton/overlay-districts).

Mobile Home Parks (special‑use landscaping rules)

• Purpose & typical uses: mobile home park development rules require more prescriptive landscaping.
• Landscaping/screening rules:
  • Mobile home parks must provide permanently maintained landscaped areas, street‑front landscaping, and a seven‑foot ornamental screen wall or fence along interior side property lines, rear property lines (not abutting a public street), and street side yards/setback lines. § (mobile home park landscaping) — see Sec. 11 (mobile home park development standards) .
  • Recreation and common areas must be landscaped and on automatic irrigation systems. § 11.8.b (park landscaping and irrigation) .
• Where it applies: where a mobile home park is proposed — subject to site plan review. § 11 .

Key standards — quick reference table

Practical guidance & interpretation (plain‑English synthesis)

• The Isleton code treats landscaping and screening as part of site-plan approvals — the planning commission uses landscaping and walls/fences to protect adjacent residential areas and to hide unsightly storage or parking. See the list of site‑plan conditions that planners commonly add, including fences/walls, buffers, and automatic irrigation requirements under § 1504. § 1504 .
• If your property is commercial, industrial or multi‑family and abuts a residential zone (including UR or RCO), expect to provide a 7‑foot solid ornamental screen unless the commission approves an alternative. This is the most frequently applicable “hard” requirement in the code: § 804.A.1, § 905.A.1. § 804.A.1 .
• Parking-lot landscaping is mandatory in non‑single‑family districts: plan for landscape islands, shade trees (~one tree per five parking spaces), distributed through the lot, and an automatic irrigation system. These are enforceable through the site plan and the parking article: § 1107.B. § 1107.B .
• For single‑family yards, the code protects street sight lines: keep fences/hedges inside the corner‑lot diagonal limits and respect the 3‑foot front-yard fence maximum. § 604.A.2–3. § 604.A.2–3 .
• Street trees, curbs, gutters and sidewalk landscaping are conditions the city may require as part of subdivision/site improvements; these are enforced under the street improvement/dedication and site plan sections (see § 1506 and § 1504). § 1506, § 1504 .

(For coordination with parking layout, consult Isleton Parking and for design review triggers consult Isleton Design Review. Link to the state building-code for any Title 24 references: California Building Standards Code (/us/california/building-codes).)

Checklist

• Submit a scaled site plan showing lot lines, adjacent zoning labels, and walls/fences: location, height and materials as required by site-plan submittal rules (§ 1403.G.4). § 1403.G.4
• Show all proposed landscaping, street trees, irrigation plans and landscape islands in parking areas; note automatic irrigation where required (§ 1107.B, § 905.A.6). § 1107.B § 905.A.6
• If your site adjoins UR, RCO, R, RM or CC, prepare a 7‑ft ornamental solid wall or alternate screening design and justify alternatives to the planning commission if seeking a modification (§ 804.A.1, § 905.A.1). § 804.A.1 § 905.A.1
• For residential/front yards: ensure front-yard fences do not exceed 3 ft or meet the allowed exceptions; verify corner‑lot diagonal sight‑line limits (§ 604.A.2–3, § 1305.C). § 604.A.2–3 § 1305.C
• If applying for a multi‑family or mobile‑home development, include the program for common-area landscaping, shaded recreation, and maintenance/irrigation (see § 1514 and mobile‑home park standards). § 1514 § 11
• Expect site‑plan conditions requiring maintenance, undergrounding utilities, trash enclosures and landscaping bonds/security as listed in § 1504. § 1504

Risks & Ambiguities

Information Gaps

• The ordinance extract does not include a consolidated “landscape design standards” table (plant species lists, soil depths, planting detail standards) — the code references irrigation and trees but does not prescribe species or soil/planting standards in the retrieved materials. Not found in retrieved materials.
• The zoning map and explicit overlay boundaries (RCO location) are not present in the retrieved file extracts; check the city zoning map for parcel‑specific adjacency. Not found in retrieved materials.
• The exact corner‑lot diagonal distances appear in multiple places (25 ft vs 30 ft) and may vary by district; the code text in different sections needs to be reconciled on a parcel basis. Verify with the building official. § 604.A.3, § 905.A.4 .

Plain-English Summary

If your Isleton proposal is commercial, industrial or multi‑family and sits next to residential or sensitive zones, plan to put in a solid ornamental screen (usually 7 ft) and parking‑lot landscaping with shade trees and automatic irrigation; if you’re in single‑family R‑1, front‑yard fences are limited to 3 ft and corner sight triangles must be kept clear. These are enforced through the site‑plan/design‑review process. See § 804, § 905, § 1107, § 604 for the controlling rules. § 804, § 905, § 1107, § 604

Source References

• Title 17 Zoning — Isleton Zoning Code (adopted ordinance text; cited provisions throughout this page): Title 17 Zoning; key sections: § 604, § 804, § 803, § 905, § 1107, § 1305, § 1307, § 1504, § 1505, § 1514.
• Specific ordinance excerpts used (search extracts): Sec. 1504, Sec. 1505 (site-plan conditions and findings)
• Mobile home park development standards (landscaping and screening) — mobile home park section excerpts (see Sec. 11 in extracted file).

(If you want the exact online Municode link for the city's Title 17 document I used to prepare this page, tell me and I will fetch the live URL or the zoning map for parcel‑level verification. For parcel‑specific questions, verify with the city planner.)

Retrieved passages

• Isleton Zoning Code (§ 1) High relevance show source text
• Isleton Zoning Code (section 1506) High relevance show source text
• Isleton Zoning Code (§ 1) High relevance show source text
• Isleton Zoning Code (§ 1) High relevance show source text
• Isleton Zoning Code (article 15) High relevance show source text
• Isleton Zoning Code (article 12.) High relevance show source text
• CWUIC § 65850.6 (Title 24) Medium relevance show source text
• Isleton Zoning Code (§ 1) Medium relevance show source text

Cited sections

• Title 17 Zoning — Isleton Zoning Code (adopted ordinance text; cited provisions throughout this page): **Title 17 Zoning**; key sections: **§ 604**, **§ 804**, **§ 803**, **§ 905**, **§ 1107**, **§ 1305**, **§ 1307**, **§ 1504**, **§ 1505**, **§ 1514**. (Title 17)
• Specific ordinance excerpts used (search extracts): Sec. **1504**, Sec. **1505** (site-plan conditions and findings)
• Mobile home park development standards (landscaping and screening) — mobile home park section excerpts **(see Sec. 11 in extracted file)**. (section excerpts)
• Isleton_ZoningCode.md

• Official Isleton code library