Local zoning · Sonoma

Sonoma — Landscaping and Screening

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

Ask a question free See coverage

Last reviewed: July 2, 2026

Overview

This page summarizes what the City of Sonoma's zoning and development code requires for landscaping, screening, buffers, fences, and walls in land-use projects. The primary rules live in the development code chapters referenced below: § 19.40.060 (landscape standards), § 19.40.100 (screening and buffering), and Chapter 19.46 (fences, hedges and walls); parking- and use-specific landscaping rules also apply. See the city's zoning map and use tables in the Sonoma Zoning and Sonoma Development Standards pages for district-specific application.

Core Sonoma requirements (short list)

  • Screening between incompatible land uses (commercial/industrial adjoining residential, and multifamily next to single-family) requires an opaque screen (planting plus a masonry wall or wooden fence) at least six feet high; height limited by Chapter 19.46 standards (§ 19.40.100) .
  • Mechanical, ground- or roof-mounted equipment, loading docks, service yards, outdoor storage and trash areas must be screened from public rights-of-way and adjacent residential/open-space zones; screening must be architecturally compatible and include landscaping per § 19.40.060 (§ 19.40.100(B)) .
  • Parking-lot landscaping/shade requirements are in § 19.48.090 (Table 4‑5) — generally 7% of small lots, 12% for larger lots, with shading targets (50% shade in 15 years) and a 5‑ft planting strip where parking fronts a street .
  • Fences/walls maximums and material restrictions are in Chapter 19.46 (examples: rear/interior setbacks 7 ft, front/street-side setback 3.5 ft, safety sight areas 30 in.; chain link and vinyl prohibited in many places; barbed/razor wire prohibited adjacent to residential) (§ 19.46.030–.080) .
  • Creek corridors and the /C overlay carry special rules: no fencing within the creek corridor, fences must be parallel and outside setbacks; riparian disturbance and landscaping requirements apply (SMC 19.40.020) .
  • Use‑specific standards (example: service stations require landscaping equal to 10% of site area exclusive of setbacks; peripheral masonry wall minimum 6 ft where abutting residential) are in the use tables and special-use sections (e.g., § 19.50.100 for service stations) .

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

Note: these are Sonoma zoning districts and subareas as used in Title 19. Where the code points to landscape/screening rules it cross‑references the sections cited below.

R-L (Residential – Low Density)

  • Purpose/uses: single‑family homes, limited accessory uses; see Table 2-1 for uses and permit requirements .
  • Screening & landscaping: multifamily developments (where allowed elsewhere) must provide screening of parking and driveways and noise/light sources per the general screening rules (see § 19.40.100 and § 19.40.060) .
  • Key dimensional cues that affect landscaping placement: front setbacks and side/rear distances are governed by the area tables and § 19.40.110 (setback measurement) .

R-S (Residential – Sonoma) and R-M (Residential – Medium Density)

  • Purpose/uses: smaller‑lot single family and (in R‑M) multifamily; project design guidance requires preserving mature trees and riparian features and buffering parking from residences (see area plans) .
  • Screening & landscaping: parking areas and driveway edges must be screened from adjacent residential uses; multifamily projects must provide landscaped screening (refer to § 19.40.060 and § 19.40.100) .
  • Practical: expect a planting strip or masonry/wood screen along shared property lines when nonresidential activities are adjacent (see § 19.40.100) .

MX (Mixed Use)

  • Purpose/uses: commercial + residential; new mixed‑use development usually must include a residential component (see Table 2‑3) .
  • Screening & landscaping: parking and service areas should be located to the rear/side and screened from the street and adjacent residences; parking landscaping, shading, and screening standards of § 19.48.090 apply . Design review standards may require integrated landscape treatment — see Sonoma Design Review.

C / C-G / C (Commercial and Gateway)

  • Purpose/uses: retail, offices, hospitality; Broadway/Gateway subarea tables set different setbacks and encourage streetscape plantings (see area tables) .
  • Screening & landscaping: where commercial development abuts residential zones a minimum six‑foot opaque screen (planting + masonry or wood fence) is required (§ 19.40.100) and the fence/wall treatment should be architectural on both sides (also Chapter 19.46) . Parking areas are expected to provide a five‑foot planting strip and screen cars to 36 inches where visible from streets per § 19.48.090 .

Downtown / Historic / Overlay districts (including /H and /C)

  • Downtown and overlay zones require compliance with the same landscape and screening chapters but add overlay-specific rules: the /H (Historic) overlay requires design review for changes and may limit alterations to walls/fences per historic context; the /C (Creek) overlay requires special creekside landscaping and forbids fencing inside the creek corridor (§ 19.40.020) . See Sonoma Overlay Districts.

Quick standards table (decision-relevant)

Requirement / item Rule / standard Code reference
Minimum opaque screen between commercial/industrial and residential; or multifamily next to single-family Opaque plant material plus solid masonry wall or wooden fence, minimum 6 ft high; architectural treatment both sides § 19.40.100
Fence/wall max heights (typical) Rear/interior setbacks 7 ft (can go to 8 ft if upper portion open grill/lattice); front/street-side 3.5 ft; traffic‑safety sight areas 30 in. § 19.46.030 (Table 4‑3)
Parking lot landscaping 7% (1–6 spaces) or 12% (7+ spaces); 50% shade target in 15 years; screening to 36 in. where parking adjoins street; parking adjacent to residences must have solid wall or fence + landscaping § 19.48.090 (Table 4‑5)
Screening of mechanical equipment Screen from public ROW and residential/open-space views; screening must exceed equipment height by ≥1 ft and include landscaping per § 19.40.060 § 19.40.100(B)
Service station landscaping Landscaping = minimum 10% of site area (exclusive of setbacks); planter widths and tree spacing specified; peripheral masonry wall ≥6 ft where adjoining residential § 19.50.100 (service station standards)
Fencing materials restrictions Vinyl and chain-link prohibited in many street-facing/residential setback areas; barbed/razor wire prohibited adjacent to residential zones (exceptions by use permit) § 19.46.080
Creek corridor fences Fences may not be located in the creek corridor; must be parallel and outside setbacks; footings may not encroach § 19.40.020

Practical guidance & interpretation (how city staff typically apply these rules)

  • When a commercial or industrial parcel abuts residential, expect a required combination of a masonry wall or wood fence and planting to achieve both sight‑obscuring screening and softening; the code explicitly calls this out and also allows the Planning Commission to waive/modify based on integration measures (shared parking, existing walls, or low‑impact adjoining uses) — see § 19.40.100(A)(4) .
  • If your project places mechanical equipment or trash/compactors where the public or residences can see them, plan for enclosures or evergreen planting that are at least 1 foot taller than the equipment and tied into the landscaping plan (refer to § 19.40.100(B) and § 19.40.060) .
  • For parking, submit a planting/shade plan that shows compliance with § 19.48.090 (percent landscaped, shade calcs, tree species and irrigation). The City enforces shade projections (50% within 15 years) and prefers drought‑tolerant species; curb/planter dimensions and irrigation detail are enforced at plan check .
  • For fences on sloping lots or retaining walls, check Chapter 19.46 for height measurement and topping rules; if average finished grade or retaining walls change your effective fence height you may need a use permit for additional height (§ 19.46.050–.040) .

Checklist (what an applicant must satisfy)

  • Show compliance with § 19.40.060 (landscape standards) including plant lists, irrigation, and long‑term maintenance plan .
  • If project abuts different zoning or a residential district, provide a screening plan meeting § 19.40.100 (6‑ft opaque screen or approved alternative) and wall/fence details per Chapter 19.46 .
  • Submit a parking‑lot landscape and shade calculation per § 19.48.090 (Table 4‑5) showing % landscaped and future shading plan .
  • Show mechanical and rooftop screening elevations that exceed equipment height by ≥1 ft and match site materials (per § 19.40.100(B)) .
  • Confirm creek‑related setbacks and locate no fencing within the creek corridor if /C overlay applies; include regulatory agency permits if work affects riparian area (§ 19.40.020) .
  • For uses like service stations, include the use‑specific landscape/layout elements (minimum 10% landscape area, planter dimensions, peripheral wall standards) per § 19.50.100 .
  • Verify required permits: design review or use permit may be required for wall/fence exceptions, material waivers, or changes in height (see Chapter 19.54 and § 19.46.030 for modification authority) .

Risks & Ambiguities

Issue Why it matters What to verify
Fence height on sloped lots / retaining walls Height is measured from the finished grade on the highest parcel; retaining walls count toward fence height and special topping rules apply — you can exceed typical height only with findings/permits Verify finished‑grade measurement, see § 19.46.050 and § 19.46.040; confirm need for use permit if >7–8 ft
Creek corridor and /C overlay Fencing and hardscape may be prohibited; riparian work requires outside agency permits Confirm overlay mapping and required permits; see § 19.40.020 and overlay rules in § 19.10.030
Material restrictions (chain link/vinyl/barbed wire) Some materials are prohibited in residential settings and along street frontages; violation can trigger denial or requirement to replace Check § 19.46.080 for prohibitions and the Planning Commission waiver process (use permit)
Conflicts between area/subarea tables and project site conditions Area plans show different setback/site standards by planning area — these change how and where landscape buffers fit Verify applicable subarea table (e.g., Central‑West, Downtown) and use § 19.40.110 for measurement rules; consult planner for which table controls the parcel
ADU-specific landscaping requirements The development code cross‑references general landscape standards but ADU-specific minimums are not enumerated here Verify with the ADU chapter and consult the Planning Division — Not found in retrieved materials for ADU-specific landscape numeric requirements (verify)

Plain-English Summary

If your project in the City of Sonoma borders a different use or is nonresidential, expect to add landscaping and screening — usually a planting strip plus a 6‑ft masonry or wooden wall (or equivalent planting) — follow the landscape standards (plant choices, irrigation, and maintenance), parking lot planting/shade rules, and fence material/height rules in Chapter 19; creek corridors and certain overlays impose extra limits — always check the applicable district table and the specific SMC sections cited below for the exact rule applicable to your parcel (§ 19.40.060; § 19.40.100; Chapter 19.46; § 19.48.090) .

Source References

  • Sonoma Municipal Code — § 19.40.100 (Screening and buffering)
  • Sonoma Municipal Code — § 19.40.060 (Landscape standards) — referenced throughout area plans and standards (see snippets pointing to this section)
  • Sonoma Municipal Code — § 19.48.090 (Landscaping of parking facilities; Table 4‑5)
  • Sonoma Municipal Code — Chapter 19.46 (Fences, Hedges and Walls; including § 19.46.030, § 19.46.040, § 19.46.050, § 19.46.060, § 19.46.080)
  • Sonoma Municipal Code — § 19.40.020 (Creekside development / /C overlay restrictions on fences)
  • Sonoma Municipal Code — § 19.40.110 (Setback measurement and exceptions)
  • Sonoma Municipal Code — § 19.50.100 (Service station / vehicle service special standards; landscaping 10%, peripheral wall 6‑ft)
  • Sonoma Municipal Code — Area plan tables and district descriptions (R‑L, R‑S, R‑M, MX, C, Downtown, Gateway) as shown in Division II and Division III; see multiple area plan entries that reference § 19.40.060, § 19.40.100, and Chapter 19.46 for landscaping and buffering obligations

(For quick navigation to related topics within this guide: see the Sonoma Land Use, Sonoma Parking, Sonoma Design Review, Sonoma Overlay Districts, Sonoma ADUs, and California Building Standards Code pages.)

Sources

Retrieved passages

  • Sonoma Zoning Code (Chapter 14.30) High relevance
  • Sonoma Zoning Code (Chapter 19.46) High relevance
  • Sonoma Zoning Code (Chapter 19.46) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • CBC § 3 (Title 19) High relevance
  • Sonoma Zoning Code (Title 19) High relevance
  • Sonoma Zoning Code (Chapter 19.48) High relevance
  • CBC § 3 (§ 3) Medium relevance
  • Sonoma Zoning Code (Title 19) Medium relevance
  • Sonoma Zoning Code (Chapter 19.48) High relevance
  • Sonoma Zoning Code (Title 19) Medium relevance
  • Sonoma Zoning Code (Title 19) Medium relevance
  • Sonoma Zoning Code (chapter may) Medium relevance
  • Sonoma Zoning Code (Title 19) Medium relevance
  • Sonoma Zoning Code (Title 19) Medium relevance

Cited sections

Frequently asked questions

What does Sonoma require between a commercial property and a residential property?

When a commercial or industrial parcel adjoins a residential zoning district, Sonoma requires an opaque screen made up of plant material plus a solid masonry wall or wooden fence at least 6 feet tall (subject to the Chapter 19.46 maximums and exceptions); the wall/fence should be architecturally treated on both sides and the Planning Commission can waive/modify requirements for specific findings (§ 19.40.100) .

How tall can a fence be in Sonoma?

General maximums are set in Chapter 19.46: rear and interior setback fences up to 7 ft (with limited open‑work allowance up to 8 ft), and front and street‑side setback fences limited to 3.5 ft; traffic safety sight triangles have a 30‑inch maximum for solid materials; special circumstances can be approved via a use permit (§ 19.46.030, Table 4‑3) .

Do parking lots need landscaping or shade?

Yes. Parking facilities must provide landscaped area per § 19.48.090 (Table 4‑5): typically 7% for very small lots and 12% for larger lots (7+ spaces). Projects must also submit shade calculations demonstrating 50% shading within 15 years for most lots and provide screening (e.g., 5‑ft planting strip to screen cars to 36 inches) where parking fronts a street (§ 19.48.090) .

Are there special rules for fences or landscaping near creeks?

Yes. The /C overlay (creek setback) requires creekside development to preserve riparian habitat. Fencing may not be located inside the creek corridor, must be outside required setbacks and parallel to the creek, and footings cannot encroach; creek work typically needs state/federal permits and a riparian landscaping plan (§ 19.40.020) .

What about screening of mechanical equipment and trash areas?

Roof‑ or ground‑mounted mechanical equipment, loading docks, service yards, and waste areas must be screened from public view and from adjacent residential/open space, and screening should be architecturally compatible and include landscaping per § 19.40.100(B) and § 19.40.060; screening should exceed equipment height by at least one foot .

Do service stations have landscape requirements?

Yes. Service stations must provide landscaping equal to at least 10% of the site area (exclusive of required setbacks), with specific planter widths, tree spacing, and corner planter requirements; when adjoining residential property a solid masonry peripheral wall (min. 6 ft) is required and must step down to 42 in at front setback lines per the service station standards (see § 19.50.100) .

Can I use chain‑link or vinyl fencing in residential front setbacks?

Chain‑link and vinyl fencing are generally prohibited in required setbacks adjoining public rights‑of‑way in residentially zoned or developed properties; barbed wire, electrified or razor wire are prohibited in residential districts and on commercial properties adjoining residential zones except via use permit under strict findings (§ 19.46.080) .

When can the Planning Commission waive screening/wall requirements?

The Planning Commission may waive or modify screening wall/fence requirements if findings are met (for example: integrated land use layout like shared parking; existing walls that meet intent; or if a lesser level of screening is appropriate given the nature of the uses) — see § 19.40.100(A)(4) for the waiver criteria and § 19.46.030 for fence‑height modification via use permit .

Do I always need design review for landscape and fence proposals?

Not always — but many projects that affect the public realm or are within overlay/historic districts or require architectural review will need design review. The code cross‑references design review and indicates the review authority may apply fence/wall design guidelines in § 19.46.070 and site design chapters; check the subarea and overlay rules and the design review chapter (SMC 19.54.080) — verify with planning staff and the Sonoma Design Review page .

Are there numeric landscaping requirements for ADUs?

The general landscape standards (SMC 19.40.060) apply to development, but the code excerpts reviewed do not show ADU‑specific numeric landscaping minimums in the retrieved materials. Verify with the ADU chapter and planning staff for parcel‑specific requirements — Not found in retrieved materials for ADU‑specific numeric landscape minimums (verify with jurisdiction).

More in Sonoma code

Ask about any Sonoma property

Get a cited, plain-English answer on Sonoma zoning, setbacks, FAR, ADUs and permits — for any address.

Start Free Trial

More Sonoma zoning topics

Sonoma Zoning

Sonoma Land Use

Sonoma Development Standards

Sonoma Parking

Sonoma Design Review

Sonoma Overlay Districts

Sonoma Historic Preservation

Sonoma Signage

Sonoma Nonconforming Uses

Sonoma Variances and Exceptions

Sonoma overview