Local zoning · Porterville

Porterville — Landscaping and Screening

Q: Are trees required along highway frontages?

Yes — any site within 200 ft of State Route 65 or State Route 190 must provide a 30 ft landscaped area between the highway ROW and any building or parking; at least two 15‑gallon trees are required for every 25 ft of highway frontage. See § 204.04.A.1 .

Q: What plant sizes and spacing does Porterville require at installation?

Minimums are: trees at 15‑gallon size (~1" dbh) spaced about 35 ft on center; shrubs minimum 1‑gallon , with hedge spacing 2–4 ft depending on species; ground cover densities are specified in § 303.05.A.5 .

Q: Does the landscaping chapter limit lawn (turf) areas?

Yes — the maximum turf in required landscape areas is 25% (except uses where turf is essential like sports fields). Turf is prohibited on slopes >25%. See § 303.05.A.3 .

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

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Last reviewed: July 2, 2026

Overview

This page summarizes what the Porterville Zoning Ordinance (Title 17) requires for landscaping and screening—where planting, fences, walls, and buffers are required, minimum planting sizes, screening heights for parking and outdoor storage, and timing/installation rules. It is based on the zoning chapters that create Article 303, Landscaping and the related screening and district standards. For the citywide context see the Porterville zoning overview at Porterville Zoning.

Core rules and where they live (quick map)

The landscaping-specific rules are codified in Article 303 (Landscaping), including purpose, applicability, design principles, areas to be landscaped, materials & sizes, and installation timing — see § 303.01 – § 303.06.
Screening rules for mechanical equipment, parking, and drive-throughs are in § 300.10 (Screening).
Outdoor storage rules (where outdoor storage is allowed and how it must be screened/paved) are in § 300.09 (Outdoor Storage).
District‑level supplemental landscaping/screening requirements (for Employment districts and highways) are in § 204.04.
Use-specific standards (for example Personal Storage Facilities) that include landscaping and wall/fence requirements appear in § 301.13.

Practical note: development proposals will also be judged against the city’s general development standards and site-specific review paths such as design review — see Porterville Design Review.

District-by-district breakdown (what matters for landscaping & screening)

PO (Professional Office) — Employment District subzone

Purpose & uses: PO allows office, medical/professional uses, some small restaurants and convenience retail; intended for office complexes. § 204.01 (PO) lists the district purpose and maximum FAR.
Landscaping/screening highlights: Parking located between building and street in PO must provide a 17 ft landscaped setback from the street-facing lot line, with the outer 2 ft low plantings to allow vehicle overhang — see § 204.04.A.2.a.
Where this applies: applies to street frontages in PO; similar frontage rules apply to certain frontages in IP and IG (see below).

IP (Industrial Park) — Employment District subzone

Purpose & uses: IP supports light industrial, warehouses, research & development, and limited customer‑facing uses. § 204.01 (IP) provides the purpose and maximum FAR.
Landscaping/screening highlights: Parking frontages on arterial/collector streets in IP are also subject to the 17 ft landscaped setback requirement in § 204.04.A.2; truck docks/ loading that abut residential districts must be screened or set back per § 300.14.

IG (General Industrial) — Employment District subzone

Purpose & uses: IG allows heavier industrial uses that may create adverse visual/noise impacts; retail is not allowed. § 204.01 (IG).
Landscaping/screening highlights: IG may allow outdoor storage more broadly, but it must follow § 300.09 screening and surfacing rules (paving, not visible from public street, fences compatible with main structure). § 300.09.B–C.

RN / R district (Residential neighborhood & generic R districts)

Purpose & uses: RN (Residential Neighborhood) is for compact mixed neighborhoods and directs how housing and open space are arranged; R districts are referenced throughout as abutting/residential districts. § 206.01 and general definitions.
Landscaping/screening highlights: Where a non‑residential project abuts an R district, a minimum 5 ft wide landscape buffer is required along interior property lines where no building abuts the line (see § 303.04.B). Transitional setbacks for taller buildings adjacent to R are required under employment district transitional rules (§ 204.03(b)).

Personal Storage / PS and similar use‑specific zones

Standards: § 301.13 obligates personal storage facilities to provide a minimum 6 ft landscaped buffer along front and street property lines, and a 6–7 ft solid perimeter wall where building facades don’t provide barrier. Open storage is limited and must be screened.

Note: This page summarizes the zoning districts most relevant to landscaping and screening. For full permitted uses by district consult the district land‑use tables in the ordinance and the city’s Porterville Land Use page.

Decision‑relevant standards (table)

Topic	Requirement (what you must provide)	Code reference
Landscaping purpose & applicability	New development/improvements subject to project review & permits must meet Article 303 standards	§ 303.02
Required setback landscaping	All required front and street‑facing side setbacks (except exits/entries) must be landscaped	§ 303.04.A
Buffer where abutting R district	Minimum 5 ft landscape buffer along interior property lines where no building abuts the line	§ 303.04.B
Plant sizes at install	Trees: 15-gallon / ~1" dbh, spaced ~35 ft on center; Shrubs: min 1-gallon (hedge spacing 2–4 ft)	§ 303.05.A.5
Parking lot screening height	Street-facing parking screening 3 ft; screening along interior lot lines abutting residential 6 ft (front setback exception = 3 ft)	§ 300.10.C.1
Outdoor storage screening & surfacing	Outdoor storage must be screened from public view; fences/walls compatible with main structure; paved surfacing required (exceptions for ag); fences in yards limited to the maximum yard fence height or 8 ft elsewhere (Zoning Admin may approve)	§ 300.09.B–C
Highway frontage buffer (SR‑65 / SR‑190)	30 ft landscaped area between highway ROW and building/parking; at least 2 fifteen‑gallon trees per 25 ft frontage	§ 204.04.A.1
Building perimeter plantings	Min 20% of building face facing parking or public street must have planters; planter width 3 ft minimum	§ 303.04.C
Timing of installation	Required landscaping/screening installed prior to Certificate of Occupancy (CO); ZA may allow up to 120 days post‑CO with a 150% surety	§ 303.06.B–C

Practical guidance & interpretation (plain‑English synthesis)

The city prefers living green buffers (trees, shrubs, hedges) to fences; plants can be combined with berms or decorative walls to achieve screening, but living materials must meet the size/spacing rules in § 303.05.
When you have a parking area between a building and the street, plan for a 17‑ft landscaped strip in PO (and similar frontages in IP/IG) to meet § 204.04; within that strip the outer 2 ft should be low plants to allow overhang. This interacts directly with the city’s parking rules, so coordinate planting and stall layout with the Porterville Parking standards.
If your site will store equipment or materials outdoors more than 72 hours, check § 300.09 early: outdoor storage is prohibited in many residential/downtown zones and where allowed it must be screened and usually paved.

Because some landscape/screening standards are applied at project review and design review, expect reviewers to evaluate both the technical minimums (plant sizes, widths, heights) and the aesthetic compatibility of walls/fences with the principal building — consult the city’s design review guidelines during plan prep.

Checklist

Submit a landscape plan showing all required landscaped setbacks and buffers per § 303.04.
Show plant schedule with sizes: trees 15 gal / ~1" dbh (35 ft spacing), shrubs 1 gal, groundcover rates — per § 303.05.A.5.
Show parking screening details: 3 ft along public streets; 6 ft along interior lines adjacent to residential (note front‑setback exception) — § 300.10.C.1.
If outdoor storage is proposed, show screening walls/fence detail and surfacing (paved) per § 300.09.B–C.
Where project frontage is on SR‑65 or SR‑190, show 30 ft highway buffer and tree counts per § 204.04.A.1.
Include irrigation details and drought‑tolerant species (sunset region guidance) as required by § 303.05.A.1.
Plan to install landscaping prior to Certificate of Occupancy or arrange a surety per § 303.06.B–C.
Confirm whether your project triggers design review or other discretionary review and coordinate with the Porterville Design Review process.

Risks & Ambiguities

Issue	Why it matters	What to verify
Fence/wall height limits when screening outdoor storage	The code allows screening walls up to 8 ft in some non‑yard locations but also ties allowable height to "maximum fence height in required yards" if on lot lines or in required yards — this affects how much you can hide and may change required plantings.	Verify the exact fence-height allowance for your parcel and whether Zoning Administrator approval is required for >8 ft; see § 300.09.B.4.
Whether landscape planter areas can be occupied by screening walls	Screening walls are prohibited inside required street frontage planters; placing a wall there could invalidate the planter credit.	Confirm planter layout with city plan reviewer; see § 300.09.B.3 and § 303.04.A.
Conflicts with fire/access codes (clear zones, sight triangles)	Dense plantings or berms can interfere with sight distance or emergency access.	Landscape must comply with sightline rules and the California Building/Fire Code; check § 303.05.C and coordinate with building/fire plan reviewers (see § 300.16 referenced in § 303.05.C).
Species selection vs maintenance/water use	The ordinance favors native/drought‑tolerant species and limits turf to 25% of required landscape areas. Using the wrong plants can create compliance or maintenance problems.	Confirm plant list and turf area against § 303.05.A.3 and the planting size/spacing rules in § 303.05.A.5.
Applicability to ADUs or very small sites	Some small projects (ADUs, minor accessory work) might be exempt from full project review but still have landscaping obligations.	Verify whether your project is subject to Article 303 via § 303.02 and consult the ADU guidance at Porterville ADUs.

Plain‑English Summary

Porterville’s zoning code requires living, drought‑aware landscaping and strategic screening to soften parking, loading, and outdoor storage; minimum plant sizes, buffer widths (e.g., 5 ft along R districts), parking screening heights (3 ft street / 6 ft adjacent to residences), and timing rules are set out in Article 303 and related sections — plan accordingly and submit a landscape plan meeting those sections.

Source References

§ 303.01 – § 303.06, Article 303 (Landscaping) — purpose, applicability, design principles, areas to be landscaped, materials & sizes, installation/timing.
§ 300.10 (Screening) — mechanical equipment, parking screening heights and materials, drive‑through screening.
§ 300.09 (Outdoor Storage) — where outdoor storage is allowed; screening, surfacing, fence/wall limits.
§ 204.01 – § 204.04 (Employment Districts & Supplemental Regs) — PO/IP/IG district purposes; 30 ft highway buffer and 17 ft parking setback on certain frontages.
§ 301.13 (Personal Storage Facilities) — 6 ft landscape buffer and 6–7 ft perimeter wall requirements.
Refer to the citywide Porterville Zoning and Porterville Land Use pages for broader context and to the city’s development standards and parking pages for interacting rules.

Sources

Retrieved passages

Porterville Zoning Code (ARTICLE 303.) High relevance
CBC § 300.10 High relevance
Porterville Zoning Code (ARTICLE 303.) High relevance
Porterville Zoning Code (Article 304) High relevance
Porterville Zoning Code High relevance
CFC § 300.14 Medium relevance
Porterville Zoning Code (chapter shall) Medium relevance
Porterville Zoning Code (ARTICLE 204.) Medium relevance
CFC § 301.14 (Chapter 303) High relevance

Cited sections

Official Porterville code library

Frequently asked questions

What are the basic landscaping requirements for new development in Porterville?

All new development or improvements subject to project review must follow Article 303: required front and street‑facing side setbacks must be landscaped, plant sizes/spacing and materials are specified, and landscaping generally must be installed prior to Certificate of Occupancy (exceptions allowed by the Zoning Administrator with surety). See § 303.02, § 303.04, § 303.05, § 303.06.

How high can screening for a parking lot be in Porterville?

Screening of parking lots from adjacent public streets must be 3 ft high; screening along interior lot lines that abut residential districts must be 6 ft, except within the required front setback where it is 3 ft. See § 300.10.C.1.

Are trees required along highway frontages?

Yes — any site within 200 ft of State Route 65 or State Route 190 must provide a 30 ft landscaped area between the highway ROW and any building or parking; at least two 15‑gallon trees are required for every 25 ft of highway frontage. See § 204.04.A.1.

Can I screen outdoor storage with chain‑link fence and privacy slats?

Screening must be architecturally compatible and conceal storage from view. Chain‑link with privacy slats is specifically excluded in some screening options for parking screening, and for personal storage facilities the code prefers decorative block/ concrete walls (though chain‑link with slats may be allowed at the ZA’s discretion in non‑residential abutting situations). Check § 300.10.C.2.b and § 301.13.F.

What plant sizes and spacing does Porterville require at installation?

Minimums are: trees at 15‑gallon size (~1" dbh) spaced about 35 ft on center; shrubs minimum 1‑gallon, with hedge spacing 2–4 ft depending on species; ground cover densities are specified in § 303.05.A.5.

Does the landscaping chapter limit lawn (turf) areas?

Yes — the maximum turf in required landscape areas is 25% (except uses where turf is essential like sports fields). Turf is prohibited on slopes >25%. See § 303.05.A.3.

When must the landscaping be installed?

Required landscaping must be installed prior to issuance of a Certificate of Occupancy, but the Zoning Administrator can permit installation within 120 days after CO if a 150% surety is posted and an agreement to complete is submitted. See § 303.06.B–C.

Are mechanical units and meters required to be screened?

Yes — mechanical and electrical equipment, antennas, meters, backflow devices, irrigation control valves, transformers, etc., must be screened or incorporated into the building design so they are not visible from streets/freeways or adjacent residential districts; screening must match building materials/colors. See § 300.10.A.

Does landscaping have to meet sight‑distance / intersection safety rules?

Yes — plantings must be maintained so mature growth does not interfere with traffic sight areas; landscaping must comply with the visibility rules referenced in § 303.05.C (see § 300.16 for visibility at intersections/driveways). Verify sight triangle/visibility compliance with staff.

Where are parking‑related landscaping requirements specified?

Parking area landscaping is required by Article 304 (On‑Site Parking & Loading) and the parking screening requirements are in § 300.10; PO/IP/IG frontage setbacks are detailed in § 204.04. Coordinate with the city’s parking rules.

If my parcel abuts an R district, what special landscape/screening rules apply?

A minimum 5 ft landscape buffer is required along interior property lines where no building abuts the line (§ 303.04.B). Employment districts also impose transitional setbacks/height limits where adjacent to R districts (§ 204.03(b)).

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