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Freestanding Industrial Flex Building
For Sale
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1849 Diamond St., San Marcos, CA 92078

Freestanding flex/industrial building with assembly/lab area, warehouse, sprinklered office, and ample dedicated parking.

Property Size15,576 SF
Price / SF$275
Days on Market939

Property Features for 1849 Diamond St.

General Information

Standard status Active
Size 15,576 SF
Property subtype INDUSTRIAL

Additional Details

Highway Access Yes
Listing Agency: Urban Property Group (UPG)
Listed By: Amy McNamara · License #01083491
Source: Moodyscre
Added: Jan 4, 2024 Changed: Jul 28 Last Checked: Jul 29 at 2:31PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Urban Property Group (UPG)

Investment Insights

Based on property information with market context.

This freestanding industrial/flex building is designed for both production and office needs, with assembly/lab area, warehouse space, and sprinklered office. In addition to the primary office component, the property includes approximately 1,252 square feet of additional office space, supported by attractive building interiors and exteriors.

The building offers ample dedicated parking and quick access and connection to I-5 and Hwy 78. It is located adjacent to the La Costa Meadows submarket, just off Rancho Santa Fe Road and Melrose Dr, placing it within North San Diego County.

As a whole, the property totals approximately 15,576 square feet and is presented for sale as a standalone asset with no association fees.

Key Highlights

  • Freestanding industrial/flex building with assembly/lab area, warehouse, and sprinklered office
  • Includes approximately 1,252 SF of additional office space
  • Ample dedicated on‑site parking

Financial Insights For Office B

Simulate Cap Rate and NOI

NOI Build-Up
Vacancy
income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
EGI (Effective Gross Income)
gross rent minus vacancy losses — the realistic income before paying operating costs.
OpEx (Operating Expenses)
recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
NOI (Net Operating Income)
income a property generates after operating costs but before financing and taxes.

Component $ $/SF
Gross rent $560.7k $36.00
− Vacancy −$80.2k −$5.15
EGI $480.6k $30.85
− OpEx −$120.1k −$7.71
NOI $360.4k $23.14
15,576 SF · lease $36.00/SF/yr · vacancy 14.30% · expense 25.00%

Alternative Uses

Best Use
Office B
$5.15M
$4.51M – $6.01M (±1% cap)
NOI $360,413 @ 7.0% cap · market cap 8.41%
Second Best
Flex RnD
$4.59M
$4.01M – $5.35M (±1% cap)
NOI $321,062 @ 7.0% cap · market cap 7.50%
Theoretical Best
Office A
$7.14M
$6.24M – $8.33M (±1% cap)
NOI $499,548 @ 7.0% cap · market cap 11.66%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Innovative Body Science Industrial Manufacturer

Suggested Use

Top Pick Restaurant Real Estate Agency Dental Office Auto Repair Shop Building Supply Law Firm

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

Yes
Highway access

Location Intelligence

Trade Area within ½ mile

400
Businesses Nearby
Under-served
Demand for This Use

Demographics for 92078, CA

52,347
Population
19,249
Households
2.7
Avg Household Size
39
Median Age
48%
College-Educated
92%
High-School Grad
16.7 sq mi
ZIP Area
3,135
Density / Sq Mi
$114,905
Median Household Income
$55,060
Median Earnings
$2,468
Median Rent
$874,000
Median Home Value

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Similar Off Market Nearby

  • Catering By Shanti — 1788 La Costa Meadows Dr #105, San Marcos, CA 92078
  • Alliance For Student Aid Processing — 1611 S Rancho Santa Fe Rd # B, San Marcos, CA 92078

Frequently Asked Questions

What type of property is this?
Flex space - Freestanding flex/industrial building with assembly/lab area, warehouse, sprinklered office, and ample dedicated parking.
Where is this flex space located?
The property is located at 1849 Diamond St. San Marcos, CA.
What is the asking price?
The asking price for this property is $4,283,400.
What are key features of this property?
This property features: Freestanding industrial/flex building with assembly/lab area, warehouse, and sprinklered office; Includes approximately 1,252 SF of additional office space; Ample dedicated on‑site parking
(760) 889-2127 Call to check price and availability
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