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Property profile & analytics
OFF-MARKET
Estimated value
$785,000
Office buildings
1407 A St Antioch, CA 94509-2357
Trust Owned
12-yr Hold
Absentee Owner
Free & Clear
Property ID
US09-3219463
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1965
Total area
4,608 SF
Lot
0.39 ac (16,828 SF)
APN
065-181-016-0
UPID
US09-3219463
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Current use
Occupant on record · Public records
-
California Staffing Services Employment Agency
-
Stacey Duckett Alternative Medicine Practice
-
Dr. Jessica Anaya Alternative Medicine Practice
-
GOOD START IMMIGRATION SERVICES Immigration & Naturalization Service
-
Signarama Antioch, CA Marketing & Advertising Advertising Agency
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$1.09M
Comparable Approach
Comparable
$533k
Blend (final)
Blend
$785k
Owner & transaction history
Demartini,carolyn Trust · 12 yrs held
Demartini,carolyn Trust
since 2013
4 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Antioch submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Antioch submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
$1,175,000
6.5%
$1,085,000
7%
$1,005,000
Blend value · Realmo final
$785k
Range $707k – $864k · ±10%
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$170 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2024Property tax & assessments
Tax year 2024
Tax billed
$8,704
Tax year 2024
Assessed value
$534,759
Assessed 2024
Previous assessed
$534,759
+0.0% YoY
Effective rate
1.63%
On assessed value
Assessed land
$172,640
Assessed improvement
$362,119
Applied tax rate
1.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
Off-Market
Year built
1965
Heating
NONE
Stories
1
Units
1
Rooms
1
Total area
4,608 SF
Lot
0.39 ac (16,828 SF)
APN
065-181-016-0
UPID
US09-3219463
Jurisdiction
CONTRA COSTA
Metro division
OAKLAND-FREMONT-HAYWARD, CA METROPOLITAN DIVISION
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Building & site characteristics
From public records
Year built
1965
Heating
NONE
Stories
1
Units
1
Rooms
1
Lot
0.39 ac
Current owner
From public records · entity-resolved
Demartini,carolyn Trust
Trust
Free & Clear · 12 yrs held
Mailing address
688 SOUTHWOOD DR, BRENTWOOD, CA 94513-1532
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2013
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
4 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Sep 4, 2013
—
Demartini,carolyn Trust
Demartini Dewey & C Trust
Quit Claim Deed
related
—
Sep 10, 1999
—
Demartini Trust
Demartini,dewey C & Carolyn F
Quit Claim Deed
related
—
Oct 5, 1976
—
—
—
Grant Deed
related
—
—
—
Dewey C De Martini
—
Deed Of Trust
related
$200,000 · Wells Fargo Bank
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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