Local zoning · Lancaster

Lancaster — Landscaping and Screening

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

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Last reviewed: July 2, 2026

Overview

This page summarizes what the Lancaster Zoning Ordinance (Title 17) requires for landscaping, screening, buffers, walls, fences, and trees. It pulls the rules and objective standards found in Title 17 (zoning), describes how they apply in the city's zoning districts, and flags where the ordinance text does not give a precise code cross‑reference and where you must verify with the city. Where possible each rule is shown with the controlling Lancaster code § and the municipal-code export used as the source.

Key internal resources you'll likely use while preparing plans include the city's site plan requirements and the design-review stream: see the city's site-plan / development standards and the Lancaster Development Standards and Lancaster Design Review pages.

What the Lancaster zoning code says (synthesis)

  • The zoning code makes landscaping a permanent, maintained element of project design; it expressly requires drought‑tolerant, high‑desert‑adaptive plant palettes and automatic irrigation systems that are hydro‑zoned and water‑conserving (see § 17.12.120 and related development-regulation text) .
  • Parking lots must include landscape planters and shade trees and meet minimum landscape percentages of the parking area (small/medium/large thresholds). The code also prescribes minimum planter widths and counts for trees/shade (see the landscape tables below; supporting text appears in the zoning export) .
  • Fences and walls standards (heights, materials, sight‑obstruction near streets) are in a dedicated fences section: § 17.20.280 (Fences) and yard/wall measurement rules in § 17.28.030 (Yards and highway lines) .
  • Screening and transition rules for multi‑unit residential and mixed‑use developments (step‑down heights, masonry screening walls at perimeters, window/privacy rules) are in § 17.41.080 (Transitions and screening) .
  • Where a development is subject to discretionary permits (Conditional Use Permit, Director's Review, Site Plan Review), the approving authority can impose landscaping, fences, walls, and buffer conditions under § 17.32.120 and the director's review rules at § 17.32.760 .
  • The code adopts the list of zones and their designations at § 17.04.100; the landscaping rules are applied within those zone standards and site‑plan chapters (see district subsections below) .

I interpret and map the most-used numeric requirements below; where the ordinance text or a clear controlling § was not present in the retrieved export I call that out.

District-by-district breakdown

Note: Lancaster's Title 17 uses the following zone symbols; I'll use those exact designations from § 17.04.100 (e.g., RR, SRR, R, MDR, HDR, MHP, C, CPD, OP, LI, HI, O, Pk, MU‑ variants) .

R Zones (RR, SRR, R, MDR, HDR)

  • Purpose & where it applies: residential neighborhoods; see § 17.04.100 for the list of R zone labels .
  • Typical permitted uses: single‑family, duplexes, multi‑family depending on the exact R‑zone (use matrix in the code) .
  • Key landscaping/screening requirements:
    • Evergreen landscape screening required between detached dwelling units and adjacent lots (or a solid 6 ft fence as an alternative); planting rates are prescribed (tree/garden unit linear feet) — see the two‑unit / residential rules (objective design) in the two‑unit article, e.g., planting rates and drought‑tolerant requirement (site-plan text) — code excerpted in the export (site plan / two‑unit provisions) .
    • Landscape and irrigation standards reference the city's landscape‑installation rules (Title 8, Ch. 8.50) — City code cross‑reference appears in the zoning text; irrigation must be hydro‑zoned and water‑efficient (see general landscaping language) .
  • Key dimensional / design notes: front setbacks, build‑to lines, and a requirement that landscaped yards be maintained; site‑plan review often enforces planting size/spacing at review (see § 17.12.120 / site plan rules) .

MU Zones (MU‑N, MU‑C, MU‑E, MU‑TOD)

  • Purpose & where it applies: mixed‑use corridors and transit areas (see § 17.04.100 for MU labels) .
  • Typical permitted uses: combinations of residential, retail, office, employment; pedestrian‑oriented design is emphasized.
  • Landscaping/screening highlights:
    • Street frontage standards require a landscaped zone where buildings do not meet frontage build‑lines; landscape widths and parkway requirements appear in the MU chapter (street frontage & landscape text) .
    • Parking and planter requirements identical in intent to commercial standards: continuous planters and shade trees where parking abuts streets (see mixed‑use "Open Space and Landscaping" rules in the mixed‑use / commercial text) .

C Zone / CPD / OP (Commercial & Office)

  • Purpose: commercial corridors, centers, and office parks.
  • Typical uses: retail, services, offices, restaurants.
  • Landscaping and screening:
    • Landscaping is required for any area not used for buildings, sidewalks, vehicle access, or parking; rooftop and utility screening are required (e.g., mechanical equipment screening) — see the C/OP development rules and the "screening" paragraphs in the export .
    • Where commercial uses abut residential, a masonry wall not less than 6 ft in height at the property line is required; the director may modify height to preserve line‑of‑sight down to 42 inches where necessary (commercial buffer rule) — see commercial zone buffering text (masonry wall requirement) .

I Zones (LI, HI)

  • Purpose: light and heavy industrial uses.
  • Screening / buffers:
    • Industrial uses adjacent to or across a street from residential zones must provide a minimum 6‑foot masonry wall along common lot lines; walls visible from the right‑of‑way must be decorative as appropriate (fence/wall rules) — see the industrial buffering requirement in the export .
    • Director may require landscaping along perimeter for screening per project conditions (director's review / CUP conditions) — see § 17.32.120 and director's authority § 17.32.760 .

O Zone (Open Space)

  • Purpose: open space and environmental retention.
  • Landscaping / screening: the O zone requires retention of existing topography, vegetation and design to screen rooftop mechanicals; where buildings abut R zones the design must minimize visual intrusion (O‑zone design requirements) — see § 17.20.290 .

Pk Zone (Parks)

  • Purpose: parks and recreation facilities.
  • Landscaping: park development standards expressly require landscaping and irrigation consistent with broader landscaping objectives; plan review enforces planting size and maintenance (Pk zone landscaping language in the export) .

Quick standards table (decision‑relevant)

Topic Requirement / Threshold Code reference
Fences at property lines Fences may be 6 ft tall at the property line; within 30 ft of a street lot line a fence may not be more than 10% sight‑obscuring § 17.20.280
Masonry buffer wall between commercial/industrial & residential Minimum 6 ft masonry wall at property line (can be reduced per sight‑line rules to 42") Commercial/industrial buffering text (see export) — § 17.28.030 referenced for wall provisions
Multi‑unit / mixed‑use transition Perimeter masonry wall 5–6 ft at property lines for large multi‑unit sites; step‑down height rules within 25 ft of abutting Urban Residential § 17.41.080 (Transitions & screening)
Parking‑lot landscaping (minimum % of parking area) 5% (≤5,000 sf); 6% (5,000–19,999 sf); 7% (≥20,000 sf). Continuous planter at abutting street: 10 ft width Landscaping tables in the zoning export (mixed‑use/commercial/parking standards). Controlling chapter text appears in Title 17 export (site-plan / development standards) — code text in export (no single § header shown in extracted snippet)
Interior parking trees Minimum one shade tree plus one tree per 4–10 parking spaces (text has both figures depending on subsection) — check project chapter Landscaping language in Title 17 export; see parking/landscaping subsections (varies by zone and subsection)
Irrigation systems Landscaped areas must be irrigated by an automatic, hydro‑zoned system; must incorporate drip, moisture sensors, anti‑drain valves General landscaping objective referencing Title 8 landscape standards (zoning code) — see site plan / landscaping text
Plant sizes at installation Minimum tree/shrub sizes prescribed (e.g., 25% of trees 24" box; no tree less than 15‑gal; 50% of shrubs 5‑gal) Plant size guidance appears in the zoning export (installation standards); see landscape objective paragraphs in Title 17 export — (code text present in export)

Note: where the exported text does not show a single section number in the snippet, the rules are still present in the Title 17 export; verify the precise § in the live municipal code when preparing final submittals.

Practical guidance / interpretation (plain-English, for designers)

  • Treat landscaping and screening as part of the required site plan: the Director and plan reviewers will check plant schedules, irrigation hydrozones, planter curbs, and required trees/spacing as part of site‑plan review under § 17.12.120 and individual zone site‑plan sections . Link your landscape plan to the parking plan (shade-tree spacing, planter curbs) and the building elevations (screening for rooftop equipment).
  • If your site abuts residential, expect a masonry wall requirement (usually 6 ft) and additional landscape buffer; illustrate wall materials and any sight‑line reductions in the site plan (commercial/industrial adjacency text) .
  • The code repeatedly mandates use of drought‑tolerant / high‑desert native or climate‑adaptive plants and references the city's Title 8 plant/installation rules — incorporate the approved plant list and irrigation details early to avoid review cycles .
  • Where text gives ranges or multiple figures (e.g., one tree per 4 spaces vs. per 10 spaces), confirm which subsection applies to your zone or specific use — the mixed‑use, commercial and residential chapters each include their own landscape subsections and counts; the Director can also require enhanced screening under Director's Review (§ 17.32.760) .

Checklist (what to include on a Lancaster site‑plan / landscape submittal)

  • Site plan that meets § 17.12.120 site‑plan submittal requirements (scaled plan, elevations): show all landscaping and screening elements .
  • Landscape plan with plant schedule (species, container size); indicate drought‑tolerant/high‑desert species per Title 8 cross‑reference .
  • Irrigation plan with hydrozones, controllers, moisture sensors and anti‑drain valves (automatic system required) — include details called for by the city's Title 8 landscape standards .
  • Parking-lot landscaping plan with planter dimensions, shade‑tree locations and counts showing compliance with the parking landscaping minimums (5%/6%/7% thresholds) .
  • Fence and wall drawings showing heights, materials and sight‑obscuration (confirm 6 ft base height rule in § 17.20.280) .
  • Screening details for rooftop equipment and trash enclosures (screening required by the applicable zone chapter) .
  • If abutting residential, indicate masonry wall treatment (typically 6 ft) and any mitigation to reduce visual/odor/noise impacts (commercial/industrial buffer rules) .
  • If a discretionary permit is required, include proposed landscaping as conditions in the narrative (authority to impose conditions: § 17.32.120) .

Risks & Ambiguities

Issue Why it matters What to verify
Multiple landscaping figures across subsections The code contains incremental, zone‑specific landscaping rules (residential, commercial, mixed‑use) that differ Verify which zone and subsection applies to your parcel (see the zoning map and § 17.04.100)
Exact controlling § for parking‑lot percent rules The export text contains the percentages but the snippet is not labeled with a single § header in every extract Confirm the exact controlling section in the live municipal code or with staff; the export text shows the standards in the site‑plan/parking chapters
Conflicting tree‑count / tree‑size numbers in different subsections Different chapters (commercial vs. residential vs. mixed‑use) show different tree counts (1 tree/4 spaces vs. 1 tree/10 spaces) Ask the planner which chapter controls for your use (director/site‑plan review); show both compliance options and call out which you prefer
Fence exemptions for required walls Exemptions exist where state or other regs require taller walls (e.g., safety walls) If a project needs taller fencing for safety/emergency or utilities, verify the exemption authority and get director sign‑off (§ 17.20.280)
Plant list & Title 8 cross‑references Title 17 directs compliance with Title 8 and Title 15 landscape specs but those are separate chapters Pull the City's Title 8 (Landscaping Installation & Maintenance) and Title 15 landscape specs to prepare planting/irrigation details; verify with staff

Plain‑English summary (for a homeowner)

Lancaster's zoning rules require most new projects and parking areas to include permanent, drought‑tolerant landscaping and screening (trees, planters, masonry walls where uses abut houses). Fences are normally limited to 6 feet, but the city can require taller masonry walls for buffering. Plan your landscape and irrigation to meet the city's planting sizes and automatic hydro‑zoned irrigation rules and show them on the site plan submitted for review (site‑plan and buffer rules summarized in §§ of Title 17) .

Source References

  • § 17.04.100 — List of zone designations (R, MDR, HDR, MU, C, OP, LI, HI, O, Pk, etc.)
  • § 17.12.120 — Site plan review required—fees; site plan content and director review authority (applies to landscaping shown on plans)
  • § 17.20.280 — Fences (purpose, height limits, sight‑obscuration near streets)
  • § 17.28.030 — Yards (provisions used for wall measurement and wall requirements at perimeters)
  • § 17.32.120 — Conditions for Conditional Use Permits (may include landscaping, walls, buffers)
  • § 17.32.760 — Director's review authority (can require landscaping/screening, site plan checks)
  • § 17.41.080 — Transitions and screening — objective standards for multi‑unit residential and mixed‑use projects (step‑down heights, masonry perimeter walls, window/privacy)
  • Mixed use / commercial and parking landscaping text (parking lot landscape %, 10‑ft planters, planter curbs, tree sizes) — zoning export pages where the landscaping tables and planting sizes appear (Title 17 export)

If you need the live municipal code links (or the city's Title 8 landscape standards and approved plant list) verify with City of Lancaster planning staff or view the city's Municode site; the above excerpts were taken from the Title 17 export provided for this research .

Sources

Retrieved passages

  • Lancaster Zoning Code (Title 8) High relevance
  • Lancaster Zoning Code (Title 8) High relevance
  • Lancaster Zoning Code (Title 8) High relevance
  • Lancaster Zoning Code (Title 8) High relevance
  • Lancaster Zoning Code (Title 8) High relevance
  • Lancaster Zoning Code (Section 17.08.130.) High relevance
  • Lancaster Zoning Code (Section 17.08.130.) High relevance
  • Lancaster Zoning Code (§ 1) High relevance
  • Lancaster Zoning Code (§ 1) Medium relevance
  • Lancaster Zoning Code (§ 4) Medium relevance
  • Lancaster Zoning Code (Section 17.12.220) Medium relevance
  • Lancaster Zoning Code (Section 17.08.170A.) Medium relevance
  • Lancaster Zoning Code (§ 1) Medium relevance
  • CBC § 1 (section lines) Medium relevance
  • Lancaster Zoning Code (Section 17.28.030C) Medium relevance
  • Lancaster Zoning Code (Section 17.28.030.C) Medium relevance
  • Lancaster Zoning Code (Title 8) Medium relevance
  • CBC § 120 (Chapter 17.41) Medium relevance
  • Lancaster Zoning Code (Chapter 8.30.) Medium relevance
  • Lancaster Zoning Code (section must) Medium relevance
  • Lancaster Zoning Code (Section 17.32.090) Medium relevance
  • Lancaster Zoning Code (Section 17.08.305) High relevance
  • Lancaster Zoning Code (Section 17.08.200) Medium relevance
  • Lancaster Zoning Code (Section 17.12.800B.2.) Medium relevance
  • Lancaster Zoning Code (Section 17.08.100) Medium relevance

Cited sections

Frequently asked questions

What fence height is allowed at a Lancaster property line?

Under the zoning ordinance a fence may be 6 ft tall at the property line; within 30 ft of a street lot line a fence may not be more than 10% sight‑obscuring; building permits are required for fences over 6 ft. See § 17.20.280 .

When does Lancaster require a masonry wall between commercial/industrial and residential properties?

The code requires a minimum 6‑ft masonry wall along common lot lines where industrial or commercial uses are adjacent to residentially zoned property; design and sight‑line adjustments are addressed in the commercial/industrial provisions and yard rules (see § 17.28.030 and the commercial buffering text) .

How much of a parking lot must be landscaped in Lancaster?

The ordinance export shows parking‑lot landscaping minimums of 5% (1–4,999 sf parking), 6% (5,000–19,999 sf), and 7% (20,000 sf or more) of the total area used for vehicle ingress/egress/circulation/parking; a 10‑ft continuous street planter is required where parking abuts a local or collector street (see the parking/landscaping tables in the Title 17 export) .

Does Lancaster require a specific irrigation system for landscaped areas?

Yes. Landscaped areas are required to be irrigated by an automatic system with separate stations for each hydrozone and to incorporate water‑conserving measures (drip, moisture sensors, anti‑drain valves) per the landscaping objective language; the zoning text cross‑references the city's Title 8 landscaping installation and maintenance rules for detailed requirements .

Are turf lawns allowed?

The zoning text makes clear that turf is not permitted except for recreational areas; the code requires drought‑resistant and climate‑adaptive plantings and refers to Title 8 landscape installation standards for compliance .

How does Lancaster handle screening for rooftop equipment and trash enclosures?

The code requires screening of rooftop mechanical equipment and that trash enclosures be screened from primary view; rooftop screening should be integral to architecture and trash enclosures must meet minimum size and screening rules (see the non‑residential/mixed‑use design and screening text) .

If my project is adjacent to single‑family homes, when will the Director require extra landscaping?

When a proposed use is more intensive than adjacent residential uses the Director or the commission may require additional buffers, walls, increased landscaping width, berms, or other measures at site‑plan review or under CUP conditions; authority and typical conditions are found in § 17.32.120 and Director's Review rules § 17.32.760 .

What tree sizes and quantities must be planted at installation?

The Title 17 export provides installation minimums (e.g., no tree less than 15‑gallon size; 25% of trees from 24‑inch box or larger; shrub size minimums and spacing are given in the landscaping paragraphs). These numbers appear in the zoning export; verify the exact subsection that controls your application as counts differ by zone and by parking vs. perimeter planting .

Do I need a site plan to show landscaping?

Yes. A scaled site plan showing all landscape, screening and irrigation elements is required under site‑plan rules and will be checked against the zone's objective standards — see § 17.12.120 and applicable zone site‑plan sections .

Where are the official lists of permitted plants and irrigation standards?

The zoning chapters cross‑reference the city's Title 8 (Ch. 8.50 and Ch. 8.30) for Landscaping Installation and Maintenance and Title 15 for landscape specifications. Pull those chapters for the official approved plant lists and installation details; the zoning export points planners to those chapters for specifics (Title 8 / Title 15 references in Title 17) . ---

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