Yountville — Overlay Districts

Last reviewed: July 3, 2026

Overview

Yountville’s overlay districts are ordinance-level modifiers that apply in addition to a property's base zoning to address special places or policy goals (for example, creek protection or promoting affordable housing). The list of overlays and the chapter references are established in § 17.08.060 (see the Zoning Map designations) and implemented through discrete chapters for each overlay § 17.08.060; . Overlay chapters generally state a purpose, list conditions or permitted/conditionally permitted uses, and identify required approvals such as Master Development Plans, use permits, or design review. See Yountville Zoning for general context. (/us/california/yountville/zoning)

How to read this page

This page summarizes what the Yountville Zoning Ordinance itself requires for each overlay. I synthesize and explain—do not treat this as legal text. Where the ordinance text was not present in the retrieved files, I state "Not found in retrieved materials" and recommend you Verify with the jurisdiction.

How Yountville applies overlays (quick)

• Overlays apply in addition to the base zone listed on the Zoning Map; consult § 17.08.060 (Map Designation list) for the applied overlays and the chapter that governs each overlay § 17.08.060; .
• Common approval tools used inside overlays include Master Development Plan, use permits (Chapter 17.200), and design review (Chapter 17.188). Where noted below, the overlay chapters explicitly require those approvals; applicants should plan for them and the related submittals per the Town’s design review rules (/us/california/yountville/design-review).

District-by-district breakdown

The table below gives the quick decision-relevant summary; code references follow in the district sections.

Creekside Overlay — C

• Purpose: Protect Hopper Creek’s riparian cover, reduce flood/debris risk, preserve Hopper Creek’s natural visual character § 17.76.010; .
• Key controls:
  • Setback: A Hopper Creek setback area runs 35 feet from the creek centerline and not less than 10 feet from the creek bank (measured parallel to the creek) § 17.76.020; .
  • Prohibitions: No buildings, walls, fences, or other structures may be placed inside the Hopper Creek setback area; no deposit, excavation, or material removal in the setback § 17.76.020; .
  • Vegetation: No removal of native vegetation or trees > 3 inches trunk diameter at ground within the setback without compliance with the chapter § 17.76.020; .
  • Exceptions/variances: Waivers possible only by Town Council when the work won’t increase flood danger and will assist chapter goals; variance procedure governed by Chapter 17.204 § 17.76.020; .
• Where it applies: Only to parcels shown with C on the Zoning Map; see § 17.08.060; .
• Practical guidance: Early site survey of creek centerline and bank is essential. Expect setbacks to reduce buildable area and to trigger design-level permits for any encroachment.

Relevant links: If your project affects setbacks or other dimensional items, consult the Town’s development standards (/us/california/yountville/development-standards) and the setback rules in the ordinance; stormwater/landscaping design review will likely reference the Town’s landscaping and screening requirements.

Affordable Housing Overlay — AHO

• Purpose: Encourage provision of affordable housing by allowing density increases and incentives § 17.80.010; .
• Key controls and incentives:
  • The Town may grant direct financial aid, fee reductions/waivers, priority review, concessions or waivers consistent with State Density Bonus law, and other incentives § 17.80.020.A–D; .
  • When AHO applies to PC (Primary Commercial) sites subject to a Master Development Plan, the Master Plan may be required to construct 3.5 affordable units per gross acre (on-site or acceptable off-site) as described in § 17.80.020.E; .
• Where it applies: Only where the AHO is mapped on the Zoning Map; consult § 17.08.060; .
• Practical guidance: Developers seeking AHO incentives must apply together with the planning entitlements (Master Development Plan or other applications) and should explicitly request incentives/concessions in their application package; expect nexus documentation if the Town requires it.

Link: Because AHO interacts with allowable densities and FAR, review the Town’s floor area and density rules in the development standards (/us/california/yountville/development-standards).

Gateway Overlay — G

• Purpose: Ensure high-quality design at the Town’s primary entry (intersection of Washington Street and California Drive) and reflect the Town’s historic character § 17.84.010; .
• Key controls:
  • Master Development Plan: All new development proposals are subject to Master Development Plan review § 17.84.020.A; .
  • Scale and design: New commercial buildings must be residential in scale and meet Chapter 17.72 design standards § 17.84.020.B; .
  • Permits: All new and expanded uses require a use permit and design review; the chapter explicitly requires use permits, Master Development Plan, and design review § 17.84.030; .
• Where it applies: Parcels identified with G on the Zoning Map § 17.08.060; .
• Practical guidance: Expect higher design-review scrutiny and limited flexibility on massing and materials. Coordinate early with planning staff and the design review board (/us/california/yountville/design-review) to align with the chapter’s intent.

Senior Mobile Home Park Overlay — S

• Purpose: Retain mobile home parks for occupancy by senior residents and preserve older-person housing options § 17.88.010; .
• Key controls:
  • Occupancy requirement: At least 80% of spaces/units must be rented and occupied by at least one person age 55+; this is an occupancy requirement (ownership may differ) § 17.88.020.A; .
  • Labeling: Signage, rules, leases, and advertising must state the park is a senior park / "housing for older persons" § 17.88.020.B; .
  • Verification: Owners/management must submit biennial verification of occupancy (survey or affidavit) for Planning Officer review § 17.88.020.C; .
  • Enforcement: Failure to verify or meet occupancy rules is a zoning violation § 17.88.020.D; .
• Where it applies: Mapped S parcels on the Zoning Map § 17.08.060; .
• Practical guidance: Park managers should maintain an auditable occupancy record and plan biennial filings. New development or expansions inside an S overlay should be coordinated with the Planning Officer to ensure occupancy and labeling requirements are satisfied.

Retail Overlay — RO

• Purpose: Maintain active retail uses and pedestrian activity along Washington Street (core business area) § 17.92.010; .
• Key controls:
  • Master Development Plan: New development proposals are subject to Master Development Plan review § 17.92.020.A; .
  • First-floor street frontage protection: No inn room or lodging use is permitted on the first-floor portion of buildings that face or access Washington Street; existing first-floor lodging that existed when the chapter was adopted is treated as legal nonconforming § 17.92.020.B–C; .
  • Design & submittal detail: Alterations must conform to underlying district regulations and the design standards in Chapter 17.72; development submittals must include detailed architectural and landscape plans per § 17.92.020.E–F; .
  • Signage: Signs must comply with Chapter 17.152 § 17.92.020.H; .
• Where it applies: Washington Street core (generally Humboldt Street to California Drive) as mapped § 17.92.010; .
• Practical guidance: If your project proposes lodging, place it off the street‑fronting storefront area or upstairs; otherwise plan for retail/active use at street frontage and prepare full design-level plans. Consult the Town’s sign rules (/us/california/yountville/signage) early.

Mixed Use Overlay — MU

• Purpose: Encourage fine-grained small-scale commercial and mixed uses on the east side of Washington Street (between Creek and Pedroni) while respecting Old Town Historic character § 17.96.010; .
• Key controls:
  • Approvals: All new and expanded uses listed in the MU chapter require use permits, Master Development Plan for new development, and design review for exterior changes § 17.96.020.A; .
  • Design standards: Proposals must conform to Chapter 17.72 design standards § 17.96.020.B; .
  • Permitted uses: The chapter permits minor and moderate home occupations, residential accessory uses, and commercial accessory uses § 17.96.030; .
  • Uses requiring use permit: Mixed‑use development, live/work units, under‑represented retail, commercial auxiliary structures, and major home occupations require use permits § 17.96.040; .
• Where it applies: Parcels mapped MU on the Zoning Map (east side Washington Street between Creek and Pedroni) § 17.96.010; .
• Practical guidance: MU is intended to expand small-scale retail and live-work opportunities but not at the expense of Old Town character—expect design review and use-permit hearings and tailor ground-floor layouts to support pedestrian activity.

Link: Because MU interacts with Historic District context, consult the Town’s Historic Preservation rules and ADU rules if proposing accessory dwellings (/us/california/yountville/adu).

Checklist — What an applicant must satisfy (typical)

• Confirm whether the parcel is mapped with an overlay on the Zoning Map (§ 17.08.060; ).
• If in C (Creekside): demonstrate setback (35 ft from centerline / ≥10 ft from bank) and show no structures/vegetation removal in setback (§ 17.76.020; ).
• If in RO/MU/G: prepare Master Development Plan-level submittal (detailed architecture, landscape), and plan for use permit(s) and design review as required (§ 17.92.020, § 17.96.020, § 17.84.020; ).
• If in S: prepare documentation for 80%+ senior occupancy and plan for biennial verification filing (§ 17.88.020; ).
• If requesting AHO incentives: include housing proposal, request for incentives/concessions, and any required nexus or density-bonus documentation (§ 17.80.020; ).
• Confirm signage plans follow Chapter 17.152 where overlays reference signage (§ 17.92.020.H, § 17.84.020.D; ).
• For dimensional and development standards (setbacks, FAR, lot coverage) consult the applicable base district chapter and Division 3 standards and include those calculations in the submittal (see Title 17 Divisions and Tables; e.g., RS, RM, RC chapters) § 17.12.010 and district tables; .
• Coordinate early with the Planning Officer and schedule pre‑application meeting(s) when Master Development Plan, use permit, or design review will be required (the ordinance gives the Planning Officer and boards administrative roles § 17.04.070; ).

Risks & Ambiguities

Plain-English Summary

Yountville’s overlays are special zoning add‑ons mapped on the Zoning Map that change what you must do on a property: for example, Creekside creates a strict stream setback, Retail protects ground-floor retail on Washington Street, Gateway requires high-quality design at the Town entry, MU allows targeted mixed-use but requires permits, AHO provides/demands affordable-housing incentives, and S preserves senior mobile‑home parks—each overlay chapter lists the required permits, key limits, and where it applies (see the chapter citations above for details).

Source References

• Overlay designations table and general map rule: § 17.08.060; — Downloaded from https://ecode360.com/YO5040 on 2026-05-11.
• Creekside Overlay (C): § 17.76.010–.020; .
• Affordable Housing Overlay (AHO): § 17.80.010–.020; .
• Gateway Overlay (G): § 17.84.010–.030; .
• Senior Mobile Home Park Overlay (S): § 17.88.010–.020; .
• Retail Overlay (RO): § 17.92.010–.020; .
• Mixed Use Overlay (MU): § 17.96.010–.040; .
• Title and applicability of the Zoning Ordinance (Title 17): § 17.04.010–.050; .
• Use table and district legends (helpful for permitted uses): § 17.12.010 and Table 17.12‑1; .

If you need the specific official Zoning Map, application forms, or the Town’s interpretation memos referenced above, Verify with the Town of Yountville Planning Department (the ordinance text references the Zoning Map as the authoritative map; § 17.08.060; ).

Retrieved passages

• Yountville Zoning Code (§ 17.84.030.) High relevance show source text
• Yountville Zoning Code (Chapter 17.72) High relevance show source text
• Yountville Zoning Code (§ 9) High relevance show source text
• Yountville Zoning Code (§ 9) High relevance show source text
• Yountville Zoning Code (chapter shall) High relevance show source text
• Yountville Zoning Code (CHAPTER 17.84) High relevance show source text
• Yountville Zoning Code (Chapter 17.236) High relevance show source text
• Yountville Zoning Code (§ 9) High relevance show source text

Cited sections

• Overlay designations table and general map rule: **§ 17.08.060**; — Downloaded from on 2026-05-11. (§ 17.08.060)
• **Creekside Overlay (C)**: **§ 17.76.010–.020**; . (§ 17.76.010)
• **Affordable Housing Overlay (AHO)**: **§ 17.80.010–.020**; . (§ 17.80.010)
• **Gateway Overlay (G)**: **§ 17.84.010–.030**; . (§ 17.84.010)
• **Senior Mobile Home Park Overlay (S)**: **§ 17.88.010–.020**; . (§ 17.88.010)
• **Retail Overlay (RO)**: **§ 17.92.010–.020**; . (§ 17.92.010)
• **Mixed Use Overlay (MU)**: **§ 17.96.010–.040**; . (§ 17.96.010)
• Title and applicability of the Zoning Ordinance (Title 17): **§ 17.04.010–.050**; . (Title and)
• Use table and district legends (helpful for permitted uses): **§ 17.12.010** and Table 17.12‑1; . (§ 17.12.010)
• Yountville_ZoningCode.md

• Official Yountville code library