Property profile

3625 18th St Antioch, CA 94509

OFF-MARKET
Retail space
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Property ID
US10-3134140
94,338 SF 7.38 ac Built 1993
Last sale Apr 2025·$6,100,000
Entity Owned Owner of record is a legal entity (LLC / corporation). 1-yr Hold Held for 1 years. Free & Clear No active or open recorded mortgage detected.
Market Trends Soon

Property summary

AI-generated overview

A commercial building of approximately 104,296 square feet, constructed in 1993, situated on a large parcel. The site is zoned C3 (Service/Regional Commercial), which supports a range of commercial uses and development possibilities. The property includes infrastructure suitable for adaptive reuse, 150 on-site parking spaces, and two grade-level roll-up doors. It also features a high-visibility pylon sign and is located in Antioch within a high-traffic area.

Ownership intelligence

Who controls the opportunity?

Owner of record from public deeds, plus portfolio, hold profile and investor signals where the data supports them. Included with a plan.

Owner contacts

Can we reach the decision maker?

Skip-traced phones and e-mails of the owner. Included with a plan.

Debts

What is owed, to whom, and when it comes due

Recorded lenders, amounts and estimated maturities of the owner's loan book — included with a plan.

Property tax · 2024

What does the county charge?
$75k
Tax billed · 2024
Assessed value$6.48M
Assessed land$3.43M
Assessed improvement$3.04M
Effective rate1.16%

Value estimate

· Nov 2026
$6.16M
$5.54M – $6.78M
AI approach$6.54M
Submarket $/SF estimate$7.78M

Realmo valuation models over county records.

Recently sold

What actually traded nearby?
$157/SF
ZIP average, outlier-cleaned · 38 recorded sales of this use type
Observed band · Q1–Q3$82 – $211

Cap rate analysis

How does the asset earn?

No income signal is modeled for this parcel yet — the Cap Rates tab runs the workflow.

Zoning insight

What can be built here?
HI
JurisdictionCONTRA COSTA

Location intelligence

Which uses thrive at this corner?
Best fit: Realty agency
Demand heat for this use is drawn on the map · LocInt grid
Demand index
Realty agency16.7
Restaurant13.7
Hair Salon12.6

Location

3625 18th St Antioch, CA 94509-8511
County assessor Recorded deeds · 7 transfers Qualifying comp sales · not on file Zoning catalog

Every figure names its source: public record, benchmark, or modeled. Coverage varies by property — thin data is stated as missing, never invented.

Comparables

6 recorded sales · 13 properties nearby
Recent sales nearby
6 recorded sales in this ZIP, last 8 years
Address Sale price Sold Size
A, Antioch, CA 94509 $1,400,000 Jun 2025 24,460 SF
3001 Delta Fair, Antioch, CA 94509-4156 $2,150,000 Feb 2025 8,059 SF
2799 Lone Tree, Antioch, CA 94509-4960 $9,300,000 Dec 2024 45,650 SF
113 G, Antioch, CA 94509-1283 $600,000 Sep 2024 9,825 SF
1509 A, Antioch, CA 94509-2332 $1,409,927 Aug 2024 11,449 SF
2609 Somersville, Antioch, CA 94509 $1,300,000 Mar 2024 6,952 SF
Sale prices and dates as our records hold them, one row per building. A deed can cover more of a building than the size shown, so read the price against the size rather than dividing one by the other.
Comparable nearby
6 properties of the same type nearby
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Rey answers here. ChatGPT, Grok and Claude get the same data packet.

Includes: Price & PSF · Cap rate · Location · Zoning

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