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Property profile & analytics
OFF-MARKET
Estimated value
$850,000
Apartment buildings
607 15th St Antioch, CA 94509-2224
Individually Owned
5-yr Hold
Absentee Owner
~
Est. High Equity
Property ID
US09-0429959
Property profile
Verified
Property type
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1939
Total area
3,864 SF
Lot
0.25 ac (10,950 SF)
APN
067-201-011-3
UPID
US09-0429959
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
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$870k
CAP Approach
CAP
$945k
Comparable Approach
Comparable
$852k
Blend (final)
Blend
$850k
Owner & transaction history
Koroush Akhavan-saraf · 5 yrs held
Koroush Akhavan-saraf
since 2020
Last sale
$845,000
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Medical building
$1.4M
+110.5%
Commercial (general)
$1.3M
+101.7%
Office building
$1.3M
+99.3%
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
$795,000
ML approach
$870,000
CAP Approach
CAP Return
Estimation
6%
$1,025,000
6.5%
$945,000
7%
$880,000
Alternative Use
Use
Estimation
APARTMENT HOUSE (5+ UNITS)
$665,000
Current use
MEDICAL BUILDING
$1,405,000
Change: +111% · Conversion: Moderate
COMMERCIAL (GENERAL)
$1,345,000
Change: +102% · Conversion: Moderate
OFFICE BUILDING
$1,330,000
Change: +99% · Conversion: Moderate
AUTO REPAIR, GARAGE
$1,025,000
Change: +54% · Conversion: Difficult
RETAIL STORES
$610,000
Change: -9% · Conversion: Difficult
Blend value · Realmo final
$850k
Range $765k – $935k · ±10% · vs last sale $845k (Jul 24 2020)
Last sale anchor
$845k
Jul 24 2020
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
$220 / 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
$14,824
Tax year 2024
Assessed value
$961,463
Assessed 2024
Previous assessed
$961,463
+0.0% YoY
Effective rate
1.54%
On assessed value
Assessed land
$392,549
Assessed improvement
$568,914
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
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Status
Off-Market
Year built
1939
Heating
NONE
Buildings
2
Stories
1
Units
8
Rooms
8
Total area
3,864 SF
Lot
0.25 ac (10,950 SF)
APN
067-201-011-3
UPID
US09-0429959
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
Alternative use value scenarios
Repositioning upside vs current use
APARTMENT HOUSE (5+ UNITS) Current
Est. value
$665,000
MEDICAL BUILDING
Est. value
$1.4M
COMMERCIAL (GENERAL)
Est. value
$1.3M
OFFICE BUILDING
Est. value
$1.3M
AUTO REPAIR, GARAGE
Est. value
$1.0M
RETAIL STORES
Est. value
$610,000
APARTMENT HOUSE (5+ UNITS) Current
MEDICAL BUILDING
COMMERCIAL (GENERAL)
OFFICE BUILDING
AUTO REPAIR, GARAGE
RETAIL STORES
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1939
Heating
NONE
Stories
1
Buildings
2
Units
8
Rooms
8
Lot
0.25 ac
Current owner
From public records · entity-resolved
Koroush Akhavan-saraf
Individual
Mailing address
4516 BIGHORN CT, ANTIOCH, CA 94509-8915
Mailing matches property
Different — outreach signal
Owner-occupied
No
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
12 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Feb 15, 2023
—
W 15th St LLC
—
Deed
related
$570,000 · Provident Savings Bank
Jul 24, 2020
—
Koroush Akhavan-saraf
Sharareh B Sadati
Quit Claim Deed
related
$520,000 · Koroush Akhavan-saraf
Jun 26, 2017
$845,000
Shayesteh Azimi
Ragan Family Trust
Grant Deed
$545,000 · Ragan Family Trust (pt)
Jun 5, 2017
—
Ragan Family Trust
—
Deed
related
$85,000 · Rincon Asset 401k Psp/tr (ct)
May 20, 2004
—
Ragan,tr
Ragan,gary G & Mary L
Quit Claim Deed
related
—
Feb 1, 2000
$225,000
Gary G Ragan
Milligan Trust
Grant Deed
$175,000 · Seller
May 24, 1999
$107,000
Willard R Milligan
Pearson,robert J & Patricia
Grant Deed
—
Aug 25, 1992
—
Milligan Trust
Milligan,w./mill
Quit Claim Deed
related
—
Mar 9, 1973
$25,500
—
—
Grant Deed
related
—
—
—
Ragan Family Trust
—
Deed Of Trust
related
$140,000 · Allstar Financial
—
—
W 15th St LLC
—
Deed Of Trust
related
$520,000 · Koroush Akhavan-saraf
—
—
Ragan Family Trust
—
Deed Of Trust
related
$85,000 · Rincon Asset 401k Psp/tr (ct)
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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