Earlier editions: 2026-09
Title 9 — CONSTRUCTION CODES AND FIRE CODE›Chapter 9 — PSRM
San Diego County Municipal Code § 9.3 Land Use Designations, Zoning, and Development Regulations
San Diego County Municipal Code · 2026-10 edition · updated 2026-10-03 · San Diego County
Cite as: San Diego County Municipal Code § 9.3 · Text as of 2026-10-03
9.3.1 Existing Uses¶
PSRM houses over 80 pieces of railroad equipment, including steam and diesel locomotives, passenger cars, freight cars, and cabooses within its approximately 128.98 acre grounds located in the northwestern portion of Camp Lockett. The PSRM site currently includes the restored Campo Depot, which functions as a train station and gift shop, and includes exhibit halls and display areas showcasing historic railroad cars and locomotives, as well as the Southwest Railway Library. Other facilities include a display area, library/theater, train depot, restroom, rental house, and horse barn. PSRM receives approximately 15,000 visitors per year and operates three trains using diesel-electric, each Saturday and Sunday. The train rides travel four miles one-way, with between 12,000 and 15,000 rides provided annually.
9.3.2 Planned Uses¶
PSRM intends to expand the existing Campo museum and preserve and maintain nearby open space areas adjoining the historic SDG&E rail line. The property is unimproved, except for storage tanks that were formerly used for a propane distribution system.
Figures 9 and 10 classify the constraints related to the PSRM Planning Area into the following five categories: no impacts, potential issues that require additional analysis, potential issues that involve higher level of analysis/difficulty, potential significant impacts, and significant impacts – no build possible. Constraints were generated from a variety of sources including available GIS files, field-verification, and surveys. Constraints such as cultural resources, archaeological resources, biological resources, vegetation, steep slopes, 100-year floodplain, and liquefaction were evaluated. Once constraints were identified, Figure 11 and 12 were developed to depict the zones governing the site.
The PSRM Planning Area is divided into the following four subareas:
Table 9: PSRM Subareas
| No. | Planning Area | Description | Allowed Uses* |
|---|---|---|---|
| 1 | Main Street Retail and Depot | Existing Campo Depot, Mini Depot, Caboose, and Main Street Retail shops | Cultural Exhibits and Library Services, and Retail Sales |
| 2 | PSRM Storage and Exhibit Halls | Existing open storage facility, covered train warehouse, museum repair shop and storage, mini depot, office, storage building, display building, proposed library/ |
Cultural Exhibits and Library Services, Wholesaling, Storage and Distribution(Light, Transient Habitation (Campground),Retail Sale (Specialty) |
| 3 | Camping and Recreation Area | Proposed camping, mine exhibit, parking | Transient Habitation (Campground) and Cultural Exhibits and Library Services |
| 4 | Open Space | Open space for potential mitigation | Open Space |
* Some uses are subject to further review.
The following table identifies the planned uses/amenities proposed by PSRM and how they fit within the County’s existing use types.
Table 10: PSRM Proposed Uses
| Description on Map | Zoning Ordinance Use Type | Zoning Ordinance Use Type Description |
|---|
Table 10: PSRM Proposed Uses
| Description on Map | Zoning Ordinance Use Type | Zoning Ordinance Use Type Description |
|---|---|---|
| Civic Use Types: | Civic Use Types: | Civic Use Types: |
| Proposed Library/ |
Cultural Exhibits and Library Services | Refers to non-profit, museum-like preservation, exhibition of objects of permanent interest in one or more of the arts and sciences, gallery exhibition of works of art or library collection of books, manuscripts, etc., for study and reading |
| Proposed Campgrounds | Transient Habitation (Campground) | Refers to establishments primarily engaged in the provision of lodging services on a less than weekly basis with incidental food, drink, and other sales and services intended for the convenience of guests. The following are Transient Habitation use types: a. Campground. Campground services involving transient habitation areas for travelers in recreational vehicles or tents, including recreational vehicle parks. b. Lodging. Lodging services involving the provision of room and/ |
| Commercial Use Types: | Commercial Use Types: | Commercial Use Types: |
| General Store | Accessory Use to Transient Habitation (Campground) or Retail Sales (Specialty) | Retail Sales (Specialty) refers to establishments or places primarily engaged in the sale or rental of goods or merchandise for personal or household use. Includes General (goods for regular or recurring personal or household needs) and Specialty (establishment offering a single type or closely related types of merchandise oriented toward impulse or discretionary purchases), such as crafts, jewelry, antique shops, flower shops, gifts, novelties or souvenirs, beachwear stores, etc. |
| Miscellaneous: | Miscellaneous: | Miscellaneous: |
| Proposed Parking | Accessory Use | |
| Proposed Interpretive Signage Along Sheridan Road | Accessory Use | |
| Proposed Small Railroad or Shuttle to Connect PSRM to Chaffee Park | Accessory Use to Cultural Exhibits and Library Services | |
| Proposed Open Space | Set aside as a subarea within planning area |
FIGURE 9 PSRM CONSTRAINTS
[Figure]
FIGURE 10 PSRM AND MEHS CONSTRAINTS
[Figure]
FIGURE 11 PSRM ZONES
[Figure]
FIGURE 12 PSRM AND MEHS ZONES
[Figure]
9.3.3 Proposed Zoning¶
The following “Zoning Box” shall apply to planned uses within the PSRM Planning Area. Please refer to Section 4000 to 4920 of the Zoning Ordinance for specific details regarding the development regulations.
Table 11: PSRM Zone Box
Table 11: PSRM Zone Box
| USE REGULATIONS | USE REGULATIONS | Camp Lockett 2 (CL -2) |
|---|---|---|
| DEVELOPMENT REGULATIONS | Density: | - |
| DEVELOPMENT REGULATIONS | Minimum Lot Size | - |
| DEVELOPMENT REGULATIONS | Building Type | L (allows all building types) |
| DEVELOPMENT REGULATIONS | Maximum Floor Area Ratio | - |
| DEVELOPMENT REGULATIONS | Floor Area Ratio | - |
| DEVELOPMENT REGULATIONS | Height | G (35’) |
| DEVELOPMENT REGULATIONS | Lot Coverage | - |
| DEVELOPMENT REGULATIONS | Setback | V |
| DEVELOPMENT REGULATIONS | Open Space | - |
| SPECIAL AREA REGULATIONS | SPECIAL AREA REGULATIONS | H |
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