Modesto — Overlay Districts

Last reviewed: July 2, 2026

Overview

This page summarizes what the Modesto Municipal Code (Title 10) actually says about overlay-style special districts that modify or restrict uses inside the city — not building code, permit processing practice, or state housing law. Modesto uses a small number of overlay-style designations in Title 10 (not Title 17) — most prominently the Downtown Cannabis Prohibition Overlay and the Downtown-era historic designations that affect the downtown form-based zones. The rules below are taken from the City code; read the quoted controlling sections when you need parcel-level certainty.

How to use this page

• If you want to confirm whether a parcel sits in an overlay, check the official zoning map (the City keeps the map on file and the map controls) — see § 10-1.402 and the guidance on boundary interpretation at § 10-1.403 . For background about the city's base zones and downtown rules, see the Modesto zoning overview.
• If your project touches development standards (setbacks, lot coverage) consult the Modesto Development Standards and the downtown rules and definitions in § 10-7.501—10-7.516 .

Downtown Cannabis Prohibition Overlay

Purpose

• The Downtown Cannabis Prohibition Overlay is a mapped overlay that prohibits commercial cannabis businesses inside the overlay area regardless of the property's base zoning. The overlay is geographically described in the code and shown as Figure 3.7-1 in the Zoning Code. § 10-3.7xx—Article 7 (Commercial Cannabis Uses) contains the rules; the prohibition language and map description are in the Article text. § 10-3.701 et seq. and the specific prohibition text are in the Article.

Typical effect / permitted uses

• Commercial cannabis uses (dispensaries, distribution, cultivation for commercial sale, manufacturing, retail, etc.) are not permitted inside the overlay. The code states: “All commercial cannabis uses are prohibited in the Downtown Cannabis Prohibition Overlay, regardless of a property's zoning designation.” (Downtown Cannabis Prohibition Overlay prohibition) § 10-3.7xx.
• The overlay also prohibits Smoke Shops in the same downtown overlay area (see the smoke-shop rules added to Article 3—Smoke Shops and the cross-reference prohibiting those uses in the overlay). § 10-3.803 — 10-3.804 (Smoke Shops) and the overlay prohibition language.

Key operational / dimensional standards that affect decisions

• Location/proximity rules that apply to commercial cannabis uses citywide (and inform where they can be sited outside the overlay): no commercial cannabis use within 600 ft of a school/child care/youth center, 100 ft of any residential use, 200 ft of a park or library (distances measured between property lines) — see the proximity list in the Article. § 10-3.7xx.
• Applicants for allowed commercial cannabis uses (outside the overlay where permitted) must obtain a City business license, a City Commercial Cannabis Permit, and a state license before operations; see the application/permit rules. § 10-3.704.
• The decision-maker can waive proximity requirements where there is an actual impassible physical separation (e.g., a building or freeway) — see the waiver clause in the Article. § 10-3.7xx.

Where it applies (map)

• Overlay footprint is described in Article 7 and shown in Figure 3.7-1; the code lists the bounding streets (Kansas Avenue from Highway 99 to 9th Street; Needham Street; Downey Avenue from McHenry to Burney; Burney; D Street; and the area fronting Highway 99 within the boundary). If a parcel is partially inside the overlay, the entire parcel is treated as within the overlay for commercial cannabis and smoke-shop prohibition purposes. § 10-3.7xx.

Practical guidance

• If you are evaluating a downtown site for any cannabis- or smoke-related business, first read the overlay description and measure the parcel against the named boundary streets in the ordinance — the code treats partially included parcels as fully included, so a boundary overlap can be dispositive. § 10-3.7xx.
• If you are planning any commercial cannabis activity outside the overlay, verify the proximity buffers (600 ft / 100 ft / 200 ft) and the required local and state permits and licensing before committing to a lease. § 10-3.704 .

Downtown Modesto Historic Zoning Designation (Downtown-era historic rules / designation)

Purpose

• The Downtown code includes a concept called the Downtown Modesto Historic Zoning Designation, which is the prior downtown zoning shown in Figure 7.5-1 and used to determine treatment of existing historic properties and to allow limited use of older standards for repairs/limited expansions and special consideration for historic preservation sites. The Downtown article defines and references the historic designation and Historic Preservation Sites. § 10-7.516 (definitions) and § 10-7.503 (existing development exceptions) explain how historic designations are used.

Typical permitted/conditional effects

• For legally established development present prior to June 25, 2015, remodels/repairs and expansions up to 25% of building gross floor area may be able to use the earlier Downtown Modesto Historic Zoning Designation standards as shown in Figure 7.5-1 (limited expansions greater than 25% require the Downtown standards unless an administrative exception is approved). § 10-7.503 (a)(1)(i)-(iii).
• Development adjoining formally listed Historic Preservation Sites must be compatible (e.g., no more than two stories higher/lower than the historic building) — see the “special areas” rules. § 10-7.515(c) and related Downtown provisions.

Key dimensional / review standards

• The Downtown article sets form-based development standards (build-to lines, stepbacks, frontage types, setbacks) that apply inside the downtown zones and interact with historic rules. For review and exceptions see § 10-7.502—10-7.516 and the exceptions/administrative-exception criteria at § 10-7.503.
• All development in the Downtown Zones requires development plan review; discretionary deviations (warrants or administrative exceptions) are available under the Downtown article. § 10-7.503.

Where it applies

• The Downtown historic references apply only inside the downtown form-based zones (Central Downtown CD, Transition TD, Urban General UGD, Main Street MSD, East Neighborhood END, Traditional Neighborhood TND) as mapped on the zoning map. Determine whether your parcel is in a Downtown Zone and whether Figure 7.5-1 shows it as historically designated. § 10-7.505—10-7.506 and § 10-7.516 (definition of Downtown Modesto Historic Zoning Designation).

Practical guidance

• If you own or propose work on a downtown building that is older than the Downtown code adoption dates, you may be able to use historic-era development rules for limited repairs/expansions; document existing dates and the prior zoning shown in Figure 7.5-1 when you submit. § 10-7.503.
• Expect design-guideline and historic-preservation review under the Downtown rules and consult the City’s Design Guidelines and the Modesto Historic Preservation guidance early in the process. § 10-7.503—10-7.516.

Quick reference table (decision-relevant overlay standards)

Checklist

• Confirm whether the parcel is inside an overlay using the official Zoning Map on file at the Department (map controls). See § 10-1.402.
• If evaluating a cannabis or smoke-related use, confirm the parcel is not in the Downtown Cannabis Prohibition Overlay and confirm proximity buffers (600 ft / 100 ft / 200 ft) from schools/residences/parks — § 10-3.7xx.
• If you propose a commercial cannabis operation outside the overlay, plan to obtain a City business license, a City Commercial Cannabis Permit, and a state license — see § 10-3.704.
• If working on a downtown building built before the downtown code adoption date, determine whether Figure 7.5-1 shows the property in the Downtown Modesto Historic Zoning Designation and whether the 25% repair/expansion allowance applies: § 10-7.503.
• Confirm which form-based Downtown Zone applies (CD, TD, UGD, MSD, END, TND) — that determines building placement, frontage, and design review rules — see § 10-7.505—10-7.516.
• For design and review standards in downtown projects, consult the City's Design Guidelines and the Modesto Design Review process references; expect Development Plan Review per § 10-7.503.

Risks & Ambiguities

Plain-English Summary

Modesto's zoning code (Title 10) uses a strict, mapped downtown overlay that prohibits commercial cannabis businesses and smoke shops in a specified downtown area (the Downtown Cannabis Prohibition Overlay) and keeps a set of downtown historic/design rules for older downtown properties; if a parcel is on the overlay map it is effectively off-limits to commercial cannabis regardless of its base zone, and if it’s a historic-era downtown parcel limited repair/expansion rules may apply — always confirm the map and the precise code sections before signing leases or permits. § 10-3.701—10-3.704 and § 10-7.503—10-7.516.

Source References

• Modesto Municipal Code, Title 10 — Article 7, Commercial Cannabis Uses (purpose, definitions, proximity rules, prohibition, permit requirements): § 10-3.701—10-3.704
• Proximity and prohibition language and overlay map description (Downtown Cannabis Prohibition Overlay / Figure 3.7-1): § 10-3.7xx (Article 7 text and Figure 3.7-1)
• Smoke Shop location and overlay prohibition: § 10-3.803—10-3.804
• Downtown Zones and historic-downtown references; exceptions for existing development and Downtown Modesto Historic Zoning Designation: § 10-7.501—10-7.516 and § 10-7.503
• Zoning map rules and boundary interpretation: § 10-1.402 and § 10-1.403
• Development plan review requirement for downtown and administrative exception criteria: § 10-7.503

Retrieved passages

• Modesto Zoning Code (Section 65450) Medium relevance show source text
• Modesto Zoning Code (Section 50079.5) Medium relevance show source text
• Modesto Zoning Code (§ 4) Medium relevance show source text
• Modesto Zoning Code (§ 4) Medium relevance show source text
• Modesto Zoning Code (section of) Medium relevance show source text
• Modesto Zoning Code (Article 4.) Medium relevance show source text
• CBC § 100 Medium relevance show source text
• Modesto Zoning Code (§ 1) Medium relevance show source text
• Modesto Zoning Code (article within) Medium relevance show source text
• Modesto Zoning Code (Chapter 9) Medium relevance show source text
• Modesto Zoning Code Medium relevance show source text
• Modesto Zoning Code (§ 1) Medium relevance show source text
• Modesto Zoning Code (§ 2) Medium relevance show source text
• Modesto Zoning Code (Article 5.) Medium relevance show source text
• Modesto Zoning Code (article replaces) Medium relevance show source text
• Modesto Zoning Code (Article 5.) Medium relevance show source text
• Modesto Zoning Code (Section 10-7.505) Medium relevance show source text
• Modesto Zoning Code (§ 4) Medium relevance show source text
• Modesto Zoning Code (section 11353.1) Medium relevance show source text
• Modesto Zoning Code (Article 3.) Medium relevance show source text
• Modesto Zoning Code (section contains) Medium relevance show source text
• Modesto Zoning Code Medium relevance show source text
• Modesto Zoning Code (§ 2) Medium relevance show source text
• Modesto Zoning Code (§ 1) Medium relevance show source text
• Modesto Zoning Code (Title as) Medium relevance show source text

Cited sections

• Modesto Municipal Code, Title 10 — Article 7, Commercial Cannabis Uses (purpose, definitions, proximity rules, prohibition, permit requirements): **§ 10-3.701—10-3.704** (Title 10)
• Proximity and prohibition language and overlay map description (Downtown Cannabis Prohibition Overlay / Figure 3.7-1): **§ 10-3.7xx** (Article 7 text and Figure 3.7-1) (§ 10-3.7xx)
• Smoke Shop location and overlay prohibition: **§ 10-3.803—10-3.804** (§ 10-3.803)
• Downtown Zones and historic-downtown references; exceptions for existing development and Downtown Modesto Historic Zoning Designation: **§ 10-7.501—10-7.516** and **§ 10-7.503** (§ 10-7.501)
• Zoning map rules and boundary interpretation: **§ 10-1.402** and **§ 10-1.403** (§ 10-1.402)
• Development plan review requirement for downtown and administrative exception criteria: **§ 10-7.503** (§ 10-7.503)
• Modesto_ZoningCode.md

• Official Modesto code library