Dublin — Overlay Districts

Last reviewed: July 2, 2026

Overview

This page explains how Dublin’s municipal zoning ordinance uses overlay districts to add place-specific design review and procedural controls on top of the base zoning. Overlays in Dublin do not generally replace base zoning rules but trigger additional site development review, design guidelines, and special findings before permits and building permits can proceed. See the City’s general Dublin zoning & planning overview for context.

The primary overlay/special districts in the Dublin Zoning Code are the Commercial Corridor Overlay Zoning District, the Scarlett Court Overlay Zoning District, and the Historic Overlay Zoning District (the Dublin Village Historic Area). Each overlay is codified as a separate chapter that explains purpose, applicability, projects subject to review, required findings, decision-maker, and waiver/amendment rules. Key procedural cross‑references include the City’s site development review rules and the standard zoning chapters; read those together with the overlay chapter when preparing an application. For how overlay review interfaces with routine development rules such as development standards, consult the City’s Dublin Development Standards.

How to read these overlays (quick synthesis)

• Overlays attach to properties in addition to their base zoning; the base zoning continues to control uses and dimensional standards unless the overlay chapter explicitly says otherwise. See § 8.33.030, § 8.34.020, and § 8.62.030.
• Overlays primarily regulate exterior design, site layout, signage, and other public-facing elements through required compliance with city design guidelines and Site Development Review. See the projects‑subject lists in each overlay chapter (new construction, exterior modifications, site layout changes, signage). See § 8.33.040, § 8.34.030, § 8.62.040.
• The City ties issuance of building permits to the outcome of overlay Site Development Review (no building permit until the overlay approval terms are met). See § 8.33.140, § 8.34.140, and analogous language in the Historic Overlay chapter.
• Routine interior tenant improvements are typically not subject to overlay review; overlays focus on exterior changes. See the “internal tenant improvements” carve-outs in each overlay chapter (example: § 8.33.040.A).

District-by-district breakdown

Below are the overlay districts explicitly created in Title 8. Each subsection covers the overlay’s purpose, what kinds of projects trigger review, how it interacts with permitted uses and dimensional rules, where it applies (underlying zoning), and key procedural pointers.

Commercial Corridor Overlay Zoning District (Chapter 8.33)

• Purpose: Enhance aesthetics and ensure development along commercial corridors substantially complies with the Commercial Corridor Design Guidelines. § 8.33.010–.020.
• Applies to: Properties identified on the Dublin Zoning Map as part of the Commercial Corridor; applies in addition to the property’s base zoning (the base zoning retains control of permitted uses and development standards). See § 8.33.030.
• Typical projects requiring review: new construction, exterior modifications that alter appearances, changes to site layout (parking, walls/fences, circulation, landscaping, accessory structures), and new or replacement signage. Interior tenant improvements are explicitly excluded. See § 8.33.040.
• Decision-maker & required findings: Applications go through Site Development Review; the decision‑maker may be the Community Development Director, Zoning Administrator, or Planning Commission depending on the case. Approvals require findings that the project complies with the Code, General Plan, and is in substantial compliance with the Commercial Corridor Design Guidelines. See § 8.33.080–.090.
• Building permits: The Code states that building permits shall not be issued except in accordance with the overlay Site Development Review approval. See § 8.33.140.

Practical note: The Commercial Corridor overlay does not change base setbacks, height limits, lot coverage, or FAR — those remain governed by the underlying zoning or a specific plan unless the overlay chapter expressly changes them. See § 8.33.030.

Scarlett Court Overlay Zoning District (Chapter 8.34)

• Purpose: Promote a pedestrian-oriented, upgraded public realm and ensure developments comply with the Scarlett Court Design Guidelines. § 8.34.010.
• Applies to: The Scarlett Court area; the overlay is explicitly applied in addition to underlying M-1 (Light Industrial) and C-2 (General Commercial) zoning on affected parcels — the underlying zoning continues to define permitted uses and numeric development standards. See § 8.34.020.
• Projects subject to review: New construction and additions that alter exteriors, exterior modifications, site layout changes (including parking, walls/fencing, landscaping, trash enclosures), signage, and certain auto‑related uses (auto uses may require Zoning Clearance or Minor Use Permit in the overlay). See § 8.34.030–.040.
• Decision-maker & findings: Similar Site Development Review process and waiver provisions as the Commercial Corridor overlay; findings must show compliance with the Scarlett Court Design Guidelines and the zoning ordinance. See § 8.34.070–.110.
• Building permits: Building permits are contingent on overlay Site Development Review approval per § 8.34.140.

Practical note: For properties in Scarlett Court, check whether a proposed use (especially auto-related activities) requires a separate Zoning Clearance or Minor Use Permit under Chapter 8.12. See § 8.34.040.

Historic Overlay Zoning District (Dublin Village Historic Area) (Chapter 8.62)

• Purpose: Preserve and enhance historic resources in the Dublin Village Historic Area and to guide future development to reinforce the district’s historic character. § 8.62.010–.020.
• Applies to: Properties in the Dublin Village Historic Area; the overlay is in addition to a property’s base zoning (examples listed include C-O, C-1, PD, R-M, etc.). See § 8.62.030.
• Projects subject to review: New construction and additions that alter exterior appearance, exterior modifications (including windows/doors and mechanical equipment), and signage. Routine re-roofing or repainting using like materials/colors is explicitly not subject to the overlay when there are no other changes. See § 8.62.040.
• Decision-maker & findings: The Director of Community Development is the primary decision-maker (subject to concurrent review rules). Required findings include substantial compliance with the Dublin Village Historic Area Specific Plan and protection of historic resources. See § 8.62.090 and § 8.62.070.
• Building permits: Overlay approvals must be satisfied before building permits are issued for covered work. See § 8.62.120 and related provisions.

Practical note: The Historic Overlay requires coordination with the Dublin Village Historic Area Specific Plan; the specific plan contains the design elements the overlay enforces. Also consult the City’s Dublin Historic Preservation guidance for additional administrative practice.

Quick reference table — most decision‑relevant items

Notes: Overlay chapters repeatedly state the base zoning continues to govern permitted uses and numeric standards; overlays add design- and procedure-focused controls. See § 8.33.030, § 8.34.020, § 8.62.030.

Checklist — what an applicant must satisfy for overlay-area work

• Confirm whether property is inside the overlay boundary by checking the Dublin Zoning Map and the overlay chapter (Verify with the Community Development Department). Not found in retrieved materials: the zoning map image; verify with the City.
• Submit a complete Site Development Review application (or Zoning Clearance / Minor Use Permit when required) per Chapters 8.104 and 8.124 and pay required fees. See § 8.33.050 and § 8.34.040.
• Provide materials demonstrating substantial compliance with the applicable overlay design guidelines: Commercial Corridor Design Guidelines, Scarlett Court Design Guidelines, or Dublin Village Historic Area Specific Plan. See § 8.33.130, § 8.34.130, § 8.62.010–.020.
• Be prepared to meet the overlay’s required findings (consistency with purpose/intent, compliance with General Plan/Specific Plans, no adverse safety impacts, and substantial compliance with design guidelines). See overlay findings sections (e.g., § 8.33.080, § 8.34.070, § 8.62.070).
• Expect that building permits will not be issued until overlay approvals and any conditions are satisfied. See § 8.33.140, § 8.34.140.
• If proposing an auto-related use in Scarlett Court, check whether it needs a Zoning Clearance or Minor Use Permit under Chapter 8.12 and follow that process. See § 8.34.030–.040.
• Review related chapters that commonly intersect with overlay review: off‑street parking rules, signage, landscaping, and design review practice. See the City’s Dublin Parking, Dublin Signage, Dublin Landscaping and Screening and Dublin Design Review resources.

Risks & Ambiguities

Plain-English Summary

If your Dublin property lies inside one of the overlays — Commercial Corridor, Scarlett Court, or the Historic Overlay — the City will require a Site Development Review that focuses on exterior design, signs, and site layout and requires showing your project meets the overlay’s design guidelines; the underlying zoning still controls uses and numeric rules like setbacks and height, and building permits are blocked until overlay approvals are satisfied. Verify the overlay boundary and the specific design guidelines with the Community Development Department.

Information Gaps / What I could not confirm from retrieved materials

• Exact geographic overlay map graphics and parcel lists (not present in the retrieved text). Verify overlay boundary location with the City’s official Zoning Map. Not found in retrieved materials.
• Full text of the Commercial Corridor, Scarlett Court, and Historic design guidelines (the Code references these adopted guidelines but does not reproduce them). Obtain from City files. § 8.33.130, § 8.34.130 indicate adoption exists but guideline content is external.
• Any overlay-specific numeric exceptions (height/lot coverage/FAR) — overlays consistently defer to the underlying zoning; no overlay chapter in the retrieved materials prescribes different numeric standards. See § 8.33.030, § 8.34.020, § 8.62.030.

Source References

• Dublin Municipal Code, Chapter 8.33 — Commercial Corridor Overlay Zoning District, § 8.33.010–.150.
• Dublin Municipal Code, Chapter 8.34 — Scarlett Court Overlay Zoning District, § 8.34.010–.140.
• Dublin Municipal Code, Chapter 8.62 — Historic Overlay Zoning District (Dublin Village Historic Area), § 8.62.010–.120.
• Dublin Municipal Code, Chapter 8.104 — Site Development Review (applicability and decision‑makers), § 8.104.040–.090.
• Dublin Municipal Code, related chapters: Ch. 8.12 (Zoning Districts and Permitted Uses) and Ch. 8.124 (Applications, Fees and Deposits) — referenced throughout overlay chapters.
• For administrative practice and interrelated items consult the City’s web resources I linked inline: Dublin Zoning, Dublin Development Standards, Dublin Design Review, Dublin Parking, Dublin Historic Preservation, Dublin Signage, and Dublin ADUs. (These pages are local guidance and practice complements to the code excerpts cited above.)

Retrieved passages

• Dublin Zoning Code (Chapter 8.33) High relevance show source text
• Dublin Zoning Code (Chapter 8.104) High relevance show source text
• Dublin Zoning Code (Chapter 8.31) High relevance show source text
• Dublin Zoning Code (Chapter 8.140) High relevance show source text
• Dublin Zoning Code (Chapter 8.12) High relevance show source text
• Dublin Zoning Code (Chapter 8.104) Medium relevance show source text
• Dublin Zoning Code (Section 8.33.110) Medium relevance show source text
• Dublin Zoning Code (Chapter 8.34) Medium relevance show source text

Cited sections

• Dublin Municipal Code, Chapter **8.33 — Commercial Corridor Overlay Zoning District**, **§ 8.33.010–.150**. (§ 8.33.010)
• Dublin Municipal Code, Chapter **8.34 — Scarlett Court Overlay Zoning District**, **§ 8.34.010–.140**. (§ 8.34.010)
• Dublin Municipal Code, Chapter **8.62 — Historic Overlay Zoning District (Dublin Village Historic Area)**, **§ 8.62.010–.120**. (§ 8.62.010)
• Dublin Municipal Code, **Chapter 8.104 — Site Development Review** (applicability and decision‑makers), **§ 8.104.040–.090**. (Chapter 8.104)
• Dublin Municipal Code, related chapters: **Ch. 8.12 (Zoning Districts and Permitted Uses)** and **Ch. 8.124 (Applications, Fees and Deposits)** — referenced throughout overlay chapters.
• For administrative practice and interrelated items consult the City’s web resources I linked inline: Dublin Zoning, Dublin Development Standards, Dublin Design Review, Dublin Parking, Dublin Historic Preservation, Dublin Signage, and Dublin ADUs. (These pages are local guidance and practice complements to the code excerpts cited above.)
• Dublin_ZoningCode.md

• Official Dublin code library