Local zoning · Vacaville

Vacaville — Landscaping and Screening

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

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Last reviewed: July 2, 2026

Overview

This page explains what the City of Vacaville's Land Use and Development Code requires about landscaping and screening (including fences, walls, hedges, sight-triangles, irrigation, and landscape design documentation). The controlling local ordinance is the City’s Water Efficient Landscape Ordinance (Division 14.27) and related development rules in Title 14 (Land Use and Development Code). For zoning rules that trigger landscape standards, consult the City's zoning rules and development standards linked below.

This page is Vacaville-specific: it summarizes the code requirements that are stated in the local ordinance, identifies where the code is silent, and lists what applicants must provide. Verify parcel-level questions with the Community Development Department.

NOTE: This page stays on land-use / zoning requirements (Title 14). It does not cover the California Building Standards Code (Title 24) technical construction rules — see the state code link if you need building-code details. California Building Standards Code

What the code controls (high-level)

  • Landscape triggers: The vacaville Water Efficient Landscape Ordinance (Division 14.27) applies to new and rehabilitated landscape projects above specified thresholds (for example, many new development landscapes ≥ 500 sq ft and rehabilitated landscapes ≥ 2,500 sq ft) and to other landscape maintenance items described in the division. See Division 14.27 for applicability and thresholds.

  • Sight-distance / visibility: The code forbids obstructions over 36 inches within prescribed sight-triangle areas at intersections and driveway approaches (visibility triangles measured per Figure 14.02.030.D). Exceptions can be requested via an adjustment under the Code’s administrative procedures.

  • Irrigation and water budgets: Landscape plans must comply with MAWA (Maximum Applied Water Allowance) calculations, hydrozone design, irrigation specifications (e.g., subsurface irrigation where required), and irrigation setbacks (for example, overhead irrigation limitations near hard surfaces). See the irrigation and MAWA rules in Chapter 14.27.030.

  • Documentation & certification: Projects subject to Division 14.27 must submit a landscape documentation package and a signed certificate of completion; the Director of Community Development reviews and approves the certificate. Irrigation audits and as-built irrigation drawings are required for many projects.

  • Public landscape maintenance: When subdivision or development creates public landscape (medians, parkways, frontage landscape), the City requires funding/maintenance mechanisms (landscaping & lighting district or alternate funding with required findings).

District-by-district breakdown (what the code says / what’s missing)

The Land Use and Development Code regulates development by zones (zoning districts). The ordinance defines a zone and ties development standards and permitted uses to each zone; however, the detailed numerical dimensional standards and district-permitted-use tables for each specific district are not present in the retrieved excerpts. The code treats zoning and development standards as the place to determine which landscaping/screening rules apply to a parcel; when district-specific development standards affect landscaping (setbacks, frontages, required parkway treatments, etc.), those are set in the applicable zone standards or in the City’s development standards. Where the ordinance text below references a district name, I report what the Code requires in Division 14.27 and general site rules; numeric district-specific tables were Not found in retrieved materials — Verify with the jurisdiction (see "Information Gaps" below).

Below are the commonly used Vacaville district headings and how landscaping/screening is applied or triggered by each in the Code. The bold district names are used in Vacaville's zoning system; check the official zoning map and the specific district chapter or development standards for exact numeric standards. Vacaville Zoning

R-1 (Single-Family Residential)

  • Purpose & typical uses: Intended for single-family homes; typical landscaped yards, front parkways, and private fences. The Code requires yards and setbacks be kept unobstructed except where the Code allows otherwise (yard definition and visibility triangle rules apply).
  • Landscaping/screening rules that apply citywide to R-1:
    • Visibility triangles: obstructions over 36 in. are restricted near intersections and private drives (Figure 14.02.030.D).
    • If a new landscape or rehabilitated landscape meets Division 14.27 thresholds, submit a landscape documentation package and follow MAWA, hydrozone, and irrigation rules.
  • Key dimensional standards: Not found in retrieved materials (Verify with the jurisdiction for R‑1 setbacks, lot coverage, fence height limits specific to R-1).

R-2 / R-3 (Two- / Multi-family Residential)

  • Purpose & typical uses: Duplexes, small multi-family; these zones commonly trigger more rigorous frontage, open-space, and common-area landscaping obligations when projects are discretionary or subdivisions.
  • Landscaping/screening rules:
    • Multi-family common areas and any project-level landscapes are subject to Division 14.27 if they meet thresholds; irrigation and hydrozone requirements are emphasized for shared lawns and tree plantings.
    • Tree placement guidance: the code recommends separate valves for trees to facilitate watering and considers mature root zones in irrigation design.
  • Key dimensional standards: Not found in retrieved materials (Verify with the jurisdiction for R‑2/R‑3 lot coverage, open space and buffer widths).

C-N (Neighborhood Commercial) / C-2 (General Commercial)

  • Purpose & typical uses: Small retail (C‑N), larger retail and services (C‑2). Landscaping often used for screening parking lots, loading areas, and street frontages.
  • Landscaping/screening rules:
    • Parking area landscaping and medians are part of public improvement / development review; trees and plantings in medians must follow the landscape design and water efficiency rules (Division 14.27). Vacaville Parking
    • Screening of service areas and mechanical equipment is typically required by design review; coordinate with the Code’s design-review rules for nonresidential design. Vacaville Design Review
  • Key dimensional standards: Not found in retrieved materials (Verify with the jurisdiction for required parking lot landscape ratios, planter widths, and buffer widths for C‑districts).

M-S (Manufacturing/Service) and other Industrial Zones

  • Purpose & typical uses: Industrial and servicing operations; screening and buffering are required where industrial uses abut residential zones.
  • Landscaping/screening rules:
    • Buffers and walls are typically treated as mitigation for land-use compatibility; the Code’s general enforcement and discretionary approval authorities (Director, Planning Commission) can require landscape screening conditions.
  • Key dimensional standards: Not found in retrieved materials (Verify with the jurisdiction for setback/buffer widths and wall height allowances).

PD (Planned Development) / Specific Plan Areas

  • Purpose & typical uses: Project-specific standards determined by the PD/specifc plan; landscaping and maintenance funding (landscaping & lighting district / CFD) are often required as conditions of PD approvals.
  • Landscaping/screening rules:
    • PD approvals will include a landscape maintenance mechanism for public landscape features (required findings for alternate funding).
  • Key dimensional standards: Determined in the PD or specific plan document (Verify with the jurisdiction).

OS / AG / Open Space / Agricultural

  • Purpose & typical uses: Preserve open space and agricultural uses; landscape standards may differ, and ecological restoration projects without permanent irrigation are excluded from portions of Division 14.27.
  • Key notes: Ecological restoration and certain historic sites are exempt from parts of Division 14.27 (see Chapter 14.27 applicability).

Key code excerpts and how they affect design (decision-relevant table)

Topic Decision rule / practical effect Code Reference
Landscape ordinance trigger (new landscapes) New development landscapes ≥ 500 sq ft (and many rehabilitated projects ≥ 2,500 sq ft) must comply with Division 14.27 (design, irrigation, MAWA). § 14.27.010.010 – § 14.27.010.040
Water budget (MAWA) Landscapes must calculate MAWA and ensure estimated water use ≤ MAWA; hydrozones must be grouped by similar water use. § 14.27.030 (MAWA & hydrozone rules)
Irrigation setbacks & limits Overhead irrigation prohibited within 24 inches of nonpermeable surfaces; slope irrigation rate limits for slopes >25%; areas <10 ft width often require subsurface irrigation. § 14.27.030.070 (design/irrigation rules)
Visibility triangles / fences Obstructions > 36 in. not allowed within intersection sight areas (20 ft at intersections; 15 ft at private driveway intersections); exceptions via an adjustment (Chapter 14.09.310). Chapter 14.02.030 / Figure 14.02.030.D
Documentation & certification Landscape documentation package, irrigation design, controller settings, maintenance schedule, irrigation audit report, and certificate of completion required for review/approval. § 14.27.030.040 – § 14.27.030.110
Public landscape maintenance funding When a development includes public landscaped areas, a Landscaping & Lighting maintenance district or equivalent funding is required (or an approved alternate). Chapter 14.12.060 (parks & landscape maintenance)

Plain-English synthesis and practical guidance

  • If your project builds or substantially reworks more than a modest amount of landscape (for most new development that’s ≥ 500 sq ft), expect to submit a full landscape documentation package showing hydrozones, irrigation details, MAWA calculations, and an irrigation audit; the Director reviews the signed certificate of completion. Plan for separate irrigation valves for trees and for irrigation setbacks (no overhead sprinklers right up to hardscape).

  • Don’t plant or build fences, walls, or tall hedges in the intersection/driveway sight-triangles — the Code explicitly prohibits obstructions over 36 inches in these areas and requires applicants to obtain an adjustment if they want an exception. If you need screening between properties, put hedges or walls outside the sight triangle and design with the irrigation and water-budget rules in mind.

  • For projects that create public landscape (medians, frontage landscaping), the City will require a funding/maintenance mechanism; budget for this and show maintenance plans during entitlement.

  • If your site is in a fire-prone area, the landscape plan must address defensible space and avoid highly flammable plant materials; Division 14.27 specifically requires fire-safety considerations.

Checklist (what an applicant must satisfy for landscaping / screening in Vacaville)

  • Confirm whether the project meets Division 14.27 applicability thresholds (new landscapes ≥ 500 sq ft; rehabilitated ≥ 2,500 sq ft) and prepare to comply if triggered.
  • Prepare and submit a landscape documentation package: plant palette and hydrozones, irrigation design, MAWA calculations, and landscape design plan. (§ 14.27.030 series)
  • Design irrigation to the Code’s standards: separate valves for trees where feasible, subsurface irrigation in <10 ft wide areas, no overhead within 24 in. of hardscape unless justified. (§ 14.27.030.070)
  • Keep all obstructions over 36 in. out of the sight-triangles at intersections and private driveways, or apply for an adjustment. (Figure 14.02.030.D)
  • If project includes public landscape (medians, parkways, frontages), include a maintenance funding approach (district or approved alternate) and related findings. (Chapter 14.12.060)
  • Submit certificate of completion and required irrigation audit / as‑built irrigation drawings when construction is complete. (§ 14.27.030.110)
  • Check overlays and special plans that may add requirements (historic overlays, PDs, fuel-modification/WUI rules) — link to overlays. Vacaville Overlay Districts
  • Coordinate with design review if project is subject to discretionary design review. Vacaville Design Review

Risks & Ambiguities

Issue Why it matters What to verify
Exact district-by-district numeric standards (setbacks, fence-height allowances, buffer widths) These affect where screening can be placed and how tall fences/walls may be — they determine whether a variance or adjustment is needed. Not found in retrieved materials — Verify the specific district standards and official zoning map with the City (Director of Community Development).
Tree removal / preservation rules and permit thresholds Grading permits reference a tree-preservation ordinance and mention a tree removal permit threshold (e.g., trees over a circumference threshold), which can change project scope and trigger mitigation. Not found in retrieved materials which give the cross-reference but not full tree chapter text — Verify Municipal Code tree preservation chapter and tree removal permit thresholds.
Visibility triangle exact § citation & measurement The ordinance text and figure describe 36 in. limit and the 20 ft / 15 ft measurement, but parcel corners and driveway offsets vary; misplacing screening can create code violations. Confirm exact sight-triangle dimensions on-site with City staff before installing permanent screening.
Applicability for small (< 2,500 sq ft) rehab projects Division 14.27 gives alternate (prescriptive) compliance for projects under certain sizes; uncertainty may lead to under‑submittal. Confirm whether your project can use prescriptive measures in Chapter 14.27.070 or must meet full performance requirements.
Fire-safety / Wildland-Urban Interface (WUI) requirements Local fuel-modification and PRC 4291 defensible-space obligations can force changes to plant palettes and hardscape. Check local WUI maps/conditions and design per the landscape division and local Fire Department guidance. Not all WUI details are in the retrieved excerpts.

Information Gaps (what could not be confirmed in the retrieved materials)

  • Full district-by-district numeric development standards (e.g., R-1 front-yard setback ft, fence-height allowances by zone, parking-lot landscape ratios) — Not found in retrieved materials. Verify with the City’s zoning tables or the City’s Development Standards.
  • The full text of Vacaville’s tree preservation ordinance (exact circumference thresholds, replacement ratios, permit process) — the Code cross-references a tree preservation ordinance but the complete chapter text was not present in the retrieved excerpts. Verify with the Municipal Code tree chapter.
  • Exact listing of Vacaville zoning district codes and their zone-specific landscaping/screening tables (per-zone permitted uses & dimensional tables) — Not found in retrieved materials; check the official zoning map and zone chapters. Vacaville Zoning

Plain-English Summary (for a homeowner)

If your Vacaville project will install or change landscaping beyond the small‑scale thresholds, you must submit a landscape plan that shows water-efficient planting and irrigation, comply with the city's water‑budget rules, avoid planting or building anything over 36 inches tall in the intersection/driveway sight triangles, and provide a certificate of completion when work is finished. The City enforces maintenance funding for public landscape areas and requires irrigation details and audits where Division 14.27 applies.

Source References

  • Vacaville Land Use and Development Code, Title 14 — General provisions and authority: § 14.01.010.010 – § 14.01.010.050.
  • Vacaville Water Efficient Landscape Ordinance (Division 14.27) — Chapter 14.27.010 (Title / Applicability) and Chapter 14.27.030 (landscape documentation, MAWA, irrigation, hydrozones). See § 14.27.010.010 – § 14.27.010.040 and the irrigation rules in Chapter 14.27.030.
  • Irrigation scheduling, certificate of completion, and irrigation audit requirements — Chapter 14.27.030.090 – .110.
  • Visibility triangle and obstruction rules (intersection and private driveway sight distance) — Figure 14.02.030.D and related text.
  • Maintenance funding for public landscape areas (landscaping & lighting district / CFD) — Chapter 14.12.060.
  • Definitions (yards, zones) and use-classification references (to determine when landscaping rules attach to zones) — Division 14.02 (definitions and use classifications).

Internal planning links you may need while following this page:

Sources

Retrieved passages

  • Vacaville Zoning Code (Chapter 14.09.310) High relevance
  • Vacaville Zoning Code (Section 14.27.030.040.) High relevance
  • CWUIC § 65850.6 (Title 24) High relevance
  • CBC § 14.19.242.010 (Section 14.19.242.010) High relevance
  • Vacaville Zoning Code (Chapter 14.27.040) High relevance
  • CBC § 14.19.240.010 (section are) High relevance
  • Vacaville Zoning Code (title relating) High relevance
  • CFC § 14.01.010.010 (Title 14) High relevance
  • Vacaville Zoning Code (section shall) Medium relevance
  • California Building Code Medium relevance
  • Vacaville Zoning Code Medium relevance
  • Vacaville Zoning Code (Section 14.26.030.010.B.) Medium relevance
  • Vacaville Zoning Code Medium relevance
  • Vacaville Zoning Code (title shall) Medium relevance
  • Vacaville Zoning Code Medium relevance
  • Vacaville Zoning Code (Section 14.01.030.030.) Medium relevance
  • CWUIC § 332 (Chapter 14.02.030) Medium relevance
  • Vacaville Zoning Code (Section 14.27.030.070.A.1.f.) Medium relevance

Cited sections

Frequently asked questions

Do I need a landscape plan for a small front-yard project in Vacaville?

If the new landscape is part of new development and the aggregated landscape area for the project is ≥ 500 sq ft, the Water Efficient Landscape Ordinance applies and you must submit a landscape documentation package and meet the MAWA/hydrozone requirements (§ 14.27.010.*). For rehabilitated landscapes the trigger is typically larger (≥ 2,500 sq ft). If your work is smaller, you may be eligible to follow prescriptive measures in Chapter 14.27.070 — verify with the City.

What are the Vacaville rules about fences, hedges and sight-lines at intersections?

Vacaville prohibits obstructions over 36 inches in the sight triangle at street intersections and at private driveway intersections (measurements per Figure 14.02.030.D). You may seek an adjustment under the Code (Chapter 14.09.310) if you can demonstrate the obstruction won’t impair sight distance. Always verify setback geometry on your parcel before building screening.

How does Vacaville require irrigation to be designed for new landscaping?

The Code requires hydrozones (plants grouped by water use), separate valves for trees where feasible, limits on overhead irrigation near hardscape (no overhead within 24 inches of nonpermeable surfaces unless justified), and irrigation scheduling by automatic controllers tied to ET or soil-moisture sensors. Irrigation plans and an irrigation audit are part of the documentation package. (§ 14.27.030.*)

Will I have to fund maintenance for new medians, parkways or frontage landscaping?

Yes — if your development constructs public landscape areas (medians, parkways, frontage landscaping), the City requires the establishment of a landscaping & lighting maintenance district or a community facilities district (or an approved alternate method with required findings) to fund ongoing maintenance. See Chapter 14.12.060.

Are there plant restrictions for fire-safety or wildland-urban interface (WUI) areas?

Division 14.27 requires landscape plans in fire-prone areas to address fire safety and defensible space (consistent with PRC 4291 and local fuel-modification guidelines). Avoid highly flammable plant materials and certain mulches in those locations; confirm with local Fire and Planning staff for site-specific WUI requirements.

What must I submit with a development application that includes landscaping?

Applicants must generally submit a landscape documentation package containing the landscape design plan, irrigation design, hydrozone information, MAWA calculations, controller programming parameters, a maintenance schedule, and details to support a certificate of completion and irrigation audit on project closeout (§ 14.27.030.*).

Do ADUs have special landscaping rules in Vacaville?

Accessory dwelling units (ADUs) are administered by the Director of Community Development per the code; landscaping requirements for ADUs follow the same Division 14.27 applicability thresholds and the underlying zone’s development standards if the landscape area triggers the ordinance. Check Vacaville ADUs and Division 14.27 for specifics and verify with the Director.

Can I use graywater or rain capture for meeting the MAWA?

If a parcel uses treated or untreated graywater or stored rainwater to meet the lot’s landscape water requirement entirely and the landscape area is less than 2,500 sq ft, the project may be subject only to limited provisions of Chapter 14.27 (see exemptions in § 14.27.010). Verify the specific conditions in the ordinance.

Who enforces Vacaville’s landscape and screening rules?

The Director of Community Development is the primary enforcing authority for permits, review, and approvals, with the Planning Commission and City Council involved for higher-level actions and appeals as described in Division 14.01.

If my property is in a Planned Development or overlay district, does that change landscape requirements?

Yes — PDs and overlay districts frequently include project-specific or overlay-specific landscape and screening requirements (and may alter setbacks or maintenance funding responsibilities). Always review the PD or overlay chapter that applies to your parcel; consult Vacaville Overlay Districts and the PD text. ---

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