Commercial Real Estate in El Cajon: C-G, C-M Industrial, Gillespie Field and Mixed-Use Overlay
By Matthew Martinez, Founder, CEO & Managing Broker, Diamond Real Estate Group. California DRE #01869679.
El Cajon’s commercial property runs along its main corridors and downtown, around the regional mall area, and in the industrial districts near Gillespie Field in the city’s northwest corner. The city layers a Mixed-Use Overlay, an airport overlay and some of the county’s most detailed alcohol and motel rules on top of its base zones. Any parcel’s controlling zone, overlay and specific plan should be confirmed with the City of El Cajon Planning Division before you commit.
Who controls the parcel
The city’s zoning information page warns that an El Cajon mailing address does not guarantee the parcel is inside city limits, and points owners to its boundary map and interactive zoning map. Unincorporated areas around the city follow County of San Diego zoning instead. Inside the city, the zoning code is Title 17.
Gillespie Field adds another owner. The County of San Diego describes it as the oldest and largest of its seven airports, located in El Cajon’s northwest corner, with two airport industrial parks. Land on the airport is leased from the county, and El Cajon’s Airport Overlay Zone requires non-aviation proposals on Gillespie airport land to get a consistency finding from the Airport Land Use Commission before city approval.
El Cajon zoning for commercial, industrial and mixed use
The city’s commercial chapter and industrial chapter set these districts.
| District | Intended uses | Notes |
|---|---|---|
| O-P Office Professional | Professional and administrative offices, limited related retail | 7,000 sq ft lot, 70 ft frontage |
| C-N Neighborhood Commercial | Daily convenience goods near homes | Walkable design protecting neighbors |
| C-G General Commercial | Offices, retail, auto services, tourist facilities | Hotels and pawn shops by CUP |
| C-R Regional Commercial | Community and regional centers, government | Downtown and the regional mall area under Specific Plan No. 19 |
| C-M Heavy Commercial-Light Manufacturing | Light manufacturing, wholesale, big-box retail | Retail capped at 50% of floor area; one-acre minimum district |
| M Manufacturing | Manufacturing, warehousing, trucking, labs | 20,000 sq ft lot; five-acre minimum district |
| M-U Mixed-Use Overlay | Residential or mixed use over existing zoning | Up to 40 units per acre by site plan |
Height in commercial and industrial zones is 35 feet unless a specific plan allows more. Lot coverage is limited only by landscaping rules, and a 10-foot setback applies next to residential zoning. Cannabis cultivation, delivery, dispensaries, manufacturing and storage are not permitted in any commercial or industrial zone.
Downtown, the Transit District and the Gillespie Field industrial area
Downtown and transit. The city adopted the Transit District Specific Plan on May 8, 2018 to turn the area around the El Cajon Transit Center into a complete neighborhood with housing, neighborhood commercial services and jobs tied to transit. Downtown has a longer planning history: a 2009 state notice describes a Downtown El Cajon Specific Plan covering about 541 acres that would replace the older Specific Plans 182 and 462. Confirm which downtown plan applies to a given address.
Mixed-Use Overlay. The M-U overlay leaves the base zone in place but allows residential-only or mixed-use projects up to 40 units per acre with a site development plan, and more by conditional use permit on sites of 1.5 acres or more. Height can reach 45 feet, or 35 feet within 100 feet of single-family zoning, and ground-floor commercial space needs a 15-foot floor-to-ceiling height. In areas marked Residential Required, new buildings must put half their floor area into housing, which affects what a commercial buyer can build.
Industrial near Gillespie. In the M zone, light manufacturing, warehousing, food processing, trucking terminals and labs are permitted, and heavier uses such as recycling centers need a CUP. Work must stay indoors unless noted, outdoor storage needs a six-foot screen wall, prefabricated structures such as shipping containers over 120 square feet need a minor CUP, and overhead doors facing a street must sit 65 feet back. Inside Gillespie’s Review Area 1, the airport overlay adds density and intensity limits and possible avigation easements.
El Cajon-specific rules: alcohol, lodging and secondhand stores
Alcohol. Chapter 17.210 requires a conditional use permit for most alcohol outlets, with exemptions for large grocery and retail stores and manufacturers’ tasting rooms. New off-sale outlets cannot be within 600 feet of residential zoning, schools, parks or similar uses, and new bars generally cannot be within 1,000 feet of another on-sale outlet outside C-R. Stores operating before November 1, 2013 are deemed approved but lose that status if the operation changes substantially or stops for 180 days. Buying a liquor store or bar means confirming that status.
Motels and hotels. Under the deemed approved lodging chapter, existing lodging is deemed approved but must meet performance standards: 24-hour on-site management at 12 or more rooms, security hardware, weekly housekeeping and a target of no more than one police or fire call per room per year. New or expanded lodging generally needs a CUP, and the city can revoke deemed approved status.
Other regulated uses. Title 17 has separate chapters for pawn and secondhand stores, smoke and vape shops, personal storage and fueling stations, each with its own permit path.
Transfer tax, business tax and property tax
The San Diego County Recorder collects documentary transfer tax at $0.55 per $500 of value, net of existing liens, for the county and cities, and lists no separate El Cajon rate. We found no city transfer tax on official sources; confirm with escrow. Proposition 13 reassessment generally follows a change of ownership. The city’s business license page says businesses in city limits, including home-based and visiting businesses, must hold a license and pay the business license tax under Title 5; rates are in a separate city schedule.
Due diligence that matters in El Cajon
- Confirm the parcel is in city limits using the city’s boundary map.
- Identify the base zone, any specific plan and whether the M-U or Residential Required designation applies.
- Check Gillespie Field review areas, safety zones and any avigation easement.
- For alcohol or lodging, confirm CUP or deemed approved status and compliance history.
- Verify industrial tenants’ outdoor storage, screening and container permits.
- Use our commercial due diligence checklist.
Questions people ask
Can I open a liquor store in El Cajon?
Usually only with a conditional use permit, at least 600 feet from residential zoning and other sensitive uses, and in a census tract with capacity for another license. Large grocery and retail stores are exempt.
Does buying a motel keep its approval?
Existing lodging is deemed approved, but only while it meets the city’s performance standards. Repeated violations can lead to revocation and a new CUP requirement.
Can I build housing on commercial land?
Yes if the parcel is in the Mixed-Use Overlay, up to 40 units per acre with a site plan. In Residential Required areas, half of new floor area must be residential.
What is allowed in C-M?
Light manufacturing, wholesale and big-box retail, with combined retail limited to half of floor area. New C-M districts must be at least one acre on primary thoroughfares.
Are cannabis businesses allowed?
No. Cultivation, delivery, dispensaries, manufacturing and storage are not permitted in commercial or industrial zones.
Who controls land at Gillespie Field?
The County owns the airport. Non-aviation projects there need an Airport Land Use Commission consistency finding before city approval.
Does Diamond handle commercial property in El Cajon?
Contact Matthew Martinez to discuss buying, selling or leasing commercial property in El Cajon. We can help sort out zoning, overlays and permit status for the property.
Sources & notes
- El Cajon Title 17 index
- ECMC 17.145, commercial zones
- ECMC 17.150, industrial zones
- ECMC 17.135, Mixed-Use Overlay
- ECMC 17.260, Airport Overlay
- ECMC 17.210, alcohol sales
- ECMC 17.212, deemed approved lodging
- City of El Cajon, zoning information
- City of El Cajon, Transit District Specific Plan
- CEQAnet, Downtown El Cajon Specific Plan
- County of San Diego, Gillespie Field
- City of El Cajon, business licenses
- San Diego County Recorder, recording and transfer tax
This page is general information, not legal or tax advice. Last reviewed October 2026 by Matthew Martinez.
Related: El Cajon real estate guide · Multifamily property in El Cajon · Commercial real estate services
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