Pittsburg — Historic Preservation

Last reviewed: July 2, 2026

Overview

Pittsburg's zoning code integrates historic-preservation review inside its Design Review process rather than as a standalone "historic code" chapter. For designated historic buildings and properties inside a historic district the reviewing authority must ensure proposed exterior work does not harm character-defining features, and new development within historic districts must "complement" the existing context. See the design-review rules at § 18.36.220 and the broader design-review chapter § 18.36.200–240 for procedures and duration of approvals.

(If you want the general zoning map and district names to start your search, see the Pittsburg zoning overview.) Pittsburg zoning & planning overview

How the code handles historic preservation (high-level)

• Design review is the primary regulatory tool for historic resources: the reviewing authority must apply the general design standards and the special historic-review standards in § 18.36.220 when a property is a designated historic building or lies in a designated historic district.
• The city’s Planned Development (PD) procedures explicitly encourage preservation and reuse of structures of historic value as a stated purpose; a PD plan can be tailored to preserve historic fabric. § 18.62.010(F) and review rules for PD consistency are in § 18.62.080.
• Old Town (the downtown/pedestrian-commercial area) is governed by the CP rules plus the Old Town Pittsburg Design Guidelines; projects that do not conform to those guidelines must submit a schedule to remove nonconformities and obtain design-review approval. See § 18.76.070 and Table 18.52.115 for CP development metrics.

Practical note: design-review applications in historic contexts require the same submittal apparatus listed for other discretionary design-review items (drawings, photos, material/color samples and whatever the reviewing authority requests). See the required application information referenced in the design-review article, e.g., § 18.36.210 and the review standards in § 18.36.220.

For cross-cutting rules (setbacks, lot coverage, landscaping, parking) consult the city’s development standards before preparing a historic-review submittal; those standards interact with design review. Pittsburg Development Standards

District-by-district breakdown (where historic-preservation review matters)

CP (Pedestrian Commercial)

• Purpose: downtown/pedestrian commercial core, subject to Old Town Pittsburg Design Guidelines. CP is the district that carries the city's pedestrian-oriented downtown rules.
• Typical permitted uses: retail, restaurants, offices, mixed-use residential above ground-floor commercial subject to the use table and the Old Town guidelines. See Table 18.52.115 for use and development rules.
• Key dimensional standards (decision-relevant): maximum height 60 ft, maximum lot coverage 100%, maximum FAR 2.0 (1.0 for nonresidential uses); ground-floor transparency and storefront rules (see § 18.52.115 and § 18.52.160).
• Where it applies: downtown / Old Town areas on the zoning map (properties identified as CP). Projects in CP that are nonconforming to Old Town design rules must submit an improvement schedule and obtain design-review approval before a zoning permit. § 18.76.070 explains the nonconformity schedule requirement.

If your proposed change affects parking layout, or blank walls adjacent to the public right-of-way, review the CP-specific blank-wall standard in § 18.52.150 and parking sections. Pittsburg Parking

CO / CN / CC (Commercial districts)

• Purpose: a range from commercial-office (CO) to neighborhood commercial (CN) to community commercial (CC). Each has its own property-development schedule in Table 18.52.115.
• Typical uses: varying commercial/office/retail uses; design review is required for all projects. § 18.52.100 and Table 18.52.115 give the permitted uses and dimensional rules.
• Key standards: front yard, side yard, height and lot coverage differ by subdistrict—consult Table 18.52.115 for exact numbers (for example many C districts set maximum height 35–60 ft; see the table). § 18.52.115 is the code cross‑reference.
• Where it applies: commercial corridors and nodes outside the CP area.

Design-review guidance for commercial properties is the same standards framework used for historic properties; the reviewing authority will check harmony with adjacent historic structures using the criteria in § 18.36.220.

Residential districts (RR, RS-40, RS-10, RS-6, RS-5, RS-4, RM, RMD, RH, RHD)

• Purpose: single-family to multi-family residential. The code uses RS- and RH/RHD designations rather than "R-1". Schedule 18.50.105 lists residential development standards. § 18.50.105 (Schedule 18.50.105) sets densities, heights and coverage by district.
• Typical uses: single-family, duplexes/multiplex types in RM/RMD/RH as allowed; accessory units follow accessory-dwelling-unit rules.
• Key dimensional standards (examples): detached single-family heights often 28–35 ft depending on RS category; coverage limits vary (see Schedule 18.50.105). § 18.50.105 is the governing table.
• Where it applies: mapped residential neighborhoods across the city.

Historic homes located in any residential district are reviewed under the same design-review historic standards (not a separate residential historic chapter). See § 18.36.220 for the historic-review test.

Planned Development (PD)

• Purpose: flexible, project-specific zoning to encourage quality design and preservation of serviceable existing structures of historic value; § 18.62.010(F) explicitly encourages preservation of historic structures.
• Typical permitted uses: whatever the approved PD plan specifies; PD plans may allow uses or standards tailored to preserve historic structures. § 18.62.030 and § 18.62.040 describe land-use and development regulations in PDs.
• Key standards: PD plans control setbacks, heights, signs (see PD chapter) and projects must be consistent with an approved PD plan for design-review acceptance. § 18.62.080 requires design-review consistency with an approved PD plan.
• Where it applies: large or unique sites reclassified as PD on the zoning map (marked “PD” plus ordinance number).

Overlay districts (including interim study or study overlays)

• Purpose: handle special areas where base zoning cannot fully address unique site and development characteristics. Chapter 18.74 covers overlay plans and requires design review consistency. § 18.74.060–080.
• Typical effect: an __‑O overlay or __‑S study overlay can add standards protecting historic character or require discretionary review. § 18.70.020 describes the interim study overlay designator.

If your property sits within an overlay (e.g., Old Town overlay or a locally adopted historic overlay), the overlay plan controls what is acceptable for preservation decisions and will be enforced via design review. § 18.74.080 requires consistency with the overlay plan.

Quick reference table — most decision-relevant standards / uses

Checklist — what an applicant must prepare (minimum)

• Confirm whether your property is a formally designated historic building or within a designated historic district (Verify with the jurisdiction). Not found in retrieved materials.
• Prepare design-review submittal package per § 18.36.210: scaled drawings, photographs (existing conditions and adjacent properties), materials/samples and any additional items requested by the city planner. § 18.36.210 and § 18.36.220 set the scope.
• Demonstrate that proposed exterior work will not adversely affect character-defining features (for designated or contributing buildings) — the reviewing authority must make this finding under § 18.36.220(C)(1).
• For noncontributing buildings or new development inside a historic district, show how massing, form, composition, materials, fenestration and details complement adjacent development per § 18.36.220(C)(2).
• If inside the CP / Old Town area and nonconforming to the guidelines, submit a “schedule for elimination” of nonconformities and obtain design-review approval before zoning permit issuance (see § 18.76.070).
• If the site is inside a PD or overlay district, confirm that plans are substantially consistent with the approved PD/overlay plan per § 18.62.080 and § 18.74.080.
• Include development-standard checks (setbacks, height, lot coverage, parking) from Table 18.52.115 or Schedule 18.50.105 as applicable; be ready to propose objective solutions if a variance or exception is necessary. Pittsburg Development Standards

If you plan an accessory dwelling unit (ADU) at or near a historic property, know that local ADU standards may impose objective design rules to avoid adverse impacts on historic resources. See state guidance and Pittsburg's ADU rules. Pittsburg ADUs

Risks & Ambiguities

Plain-English summary

If your Pittsburg property is designated historic or sits inside a designated historic district, you must go through the city's standard design-review process and show that exterior work preserves the building’s important visual features or that new work fits the neighborhood; Old Town (the CP district) has additional Old Town design rules and a required schedule for bringing nonconforming sites into conformance. The controlling local rules live in the design-review article § 18.36.200–240, the CP and commercial tables (Table 18.52.115), and PD/overlay chapters for special areas.

Source References

• PMC Chapter 18.36, Design Review — see the historic-specific standards § 18.36.220 and related sections § 18.36.200–240.
• PMC Chapter 18.62, Planned Development District — purpose language including historic-preservation encouragement § 18.62.010(F) and plan review § 18.62.080.
• PMC Table 18.52.115 and related CP/Commercial rules including § 18.52.115, § 18.52.150, § 18.52.160 (CP development standards, blank-wall rule).
• PMC Chapter 18.76 — nonconforming uses and the Old Town requirement/schedule for CP § 18.76.070.
• PMC Chapter 18.74 — overlay plan approval and design-review consistency § 18.74.060–080.
• PMC Chapter 18.84.305 — landscape article exemptions (registered historic sites exempt). § 18.84.305(E)(2).
• California ADU guidance (uploaded) — state guidance on ADUs and historic resources.

Retrieved passages

• Pittsburg Zoning Code (§ 3) High relevance show source text
• Pittsburg Zoning Code (§ 5) High relevance show source text
• Pittsburg Zoning Code (Chapter 18.62) High relevance show source text
• Pittsburg Zoning Code (Article XIII.) High relevance show source text
• Pittsburg Zoning Code (§ 3) High relevance show source text
• Pittsburg Zoning Code (§ 2) High relevance show source text
• Pittsburg Zoning Code Medium relevance show source text
• Pittsburg Zoning Code (§ 2) Medium relevance show source text
• Pittsburg Zoning Code (§ 4) Medium relevance show source text
• Pittsburg Zoning Code (Chapter 18.48) Medium relevance show source text
• Pittsburg Zoning Code (Chapter 18.48) Medium relevance show source text
• Pittsburg Zoning Code (Chapter 18.16) Medium relevance show source text
• Pittsburg Zoning Code (§ 4) Medium relevance show source text
• Pittsburg Zoning Code (§ 8) Medium relevance show source text

Cited sections

• PMC Chapter 18.36, Design Review — see the historic-specific standards **§ 18.36.220** and related sections **§ 18.36.200–240**. (Chapter 18.36)
• PMC Chapter 18.62, Planned Development District — purpose language including historic-preservation encouragement **§ 18.62.010(F)** and plan review **§ 18.62.080**. (Chapter 18.62)
• PMC Table 18.52.115 and related CP/Commercial rules including **§ 18.52.115**, **§ 18.52.150**, **§ 18.52.160** (CP development standards, blank-wall rule). (§ 18.52.115)
• PMC Chapter 18.76 — nonconforming uses and the Old Town requirement/schedule for CP **§ 18.76.070**. (Chapter 18.76)
• PMC Chapter 18.74 — overlay plan approval and design-review consistency **§ 18.74.060–080**. (Chapter 18.74)
• PMC Chapter 18.84.305 — landscape article exemptions (registered historic sites exempt). **§ 18.84.305(E)(2)**. (Chapter 18.84.305)
• California ADU guidance (uploaded) — state guidance on ADUs and historic resources.
• Pittsburg_ZoningCode.md
• 2025 California ADU handbook.md

• Official Pittsburg code library