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Property profile & analytics
OFF-MARKET
Estimated value
$4,030,000
Office buildings
21060 Redwood Rd Castro Valley, CA 94546-5931
Entity Owned
5-yr Hold
~
Est. High Equity
Property ID
US09-8506771
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1988
Construction
WOOD
Total area
18,453 SF
Lot
1.11 ac (48,395 SF)
APN
84C-615-4-4
UPID
US09-8506771
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
$4.02M
CAP Approach
CAP
$4.74M
Comparable Approach
Comparable
$4.94M
Blend (final)
Blend
$4.03M
Owner & transaction history
Castro Valley Plaza LLC · 5 yrs held
Castro Valley Plaza LLC
since 2021
Last sale
$4.1M
7 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 Castro Valley submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Castro Valley 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
$3,925,000
ML approach
$4,015,000
CAP Approach
CAP Return
Estimation
6%
$5,130,000
6.5%
$4,735,000
7%
$4,400,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$5,985,000
Current use
RETAIL STORES
$5,350,000
Change: -11% · Conversion: Moderate
COMMERCIAL (GENERAL)
$5,075,000
Change: -15% · Conversion: Easy
INDUSTRIAL (GENERAL)
$5,015,000
Change: -16% · Conversion: Difficult
APARTMENT HOUSE (5+ UNITS)
$5,010,000
Change: -16% · Conversion: Easy
Blend value · Realmo final
$4.03M
Range $3.63M – $4.43M · ±10% · vs last sale $4.09M (Feb 8 2021)
Last sale anchor
$4.09M
Feb 8 2021
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
$218 / 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 2023Property tax & assessments
Tax year 2023
Tax billed
$60,706
Tax year 2023
Assessed value
$4,744,079
Assessed 2024
Previous assessed
$4,651,082
+2.0% YoY
Effective rate
1.28%
On assessed value
Assessed land
$1,682,812
Assessed improvement
$3,061,267
Applied tax rate
54.0000
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
1988
Construction
WOOD
Heating
NONE
Buildings
1
Stories
2
Units
4
Bathrooms
2
Total area
18,453 SF
Lot
1.11 ac (48,395 SF)
APN
84C-615-4-4
UPID
US09-8506771
Jurisdiction
ALAMEDA
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
OFFICE BUILDING Current
Est. value
$6.0M
RETAIL STORES
Est. value
$5.4M
COMMERCIAL (GENERAL)
Est. value
$5.1M
INDUSTRIAL (GENERAL)
Est. value
$5.0M
APARTMENT HOUSE (5+ UNITS)
Est. value
$5.0M
OFFICE BUILDING Current
RETAIL STORES
COMMERCIAL (GENERAL)
INDUSTRIAL (GENERAL)
APARTMENT HOUSE (5+ UNITS)
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
1988
Construction
WOOD
Heating
NONE
Stories
2
Buildings
1
Units
4
Bathrooms
2
Lot
1.11 ac
Current owner
From public records · entity-resolved
Castro Valley Plaza LLC
Entity
Mailing address
11040 BOLLINGER CYN RD E STE E, SAN RAMON, CA 94582-5056
Ownership since
2021
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
15 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Feb 8, 2021
—
Castro Valley Plaza LLC
Lyla J Fries
Quit Claim Deed
related
—
Jul 31, 2015
$4,088,000
Fries Properties INC
Coyote Castro Valley LLC
Grant Deed
$3,000,000 · Heritage Bk/commerce
Mar 12, 2014
$3,500,000
Coyote Castro Valley LLC
Yeandle 1988 Trust
Grant Deed
—
Sep 13, 2010
—
Gene Yeandle
Yeandle,thomas W
Affidavit Of Death
related
—
Apr 23, 2010
—
Thomas W Yeandle
Yeandle,audrey A
Affidavit Of Death
related
—
Oct 30, 1998
—
Alameda County (ca)
Yeandle,yeandle Trust
Grant Deed
related
—
Jan 29, 1993
$1,750,000
Yeandle,trust
Ba Properties Co
Grant Deed
—
Jun 24, 1992
—
Ba Properties Corp
Peelle Financial
Trustees Deed
related
—
Feb 13, 1991
—
Paul Carozza
Carozza,k.
Quit Claim Deed
related
—
Sep 29, 1989
$409,000
Robert Frost
Sherwood Dawson
Grant Deed
—
—
—
Robert Frost
—
Deed Of Trust
related
$2,000,000 · Security Pacific Asian Bank
—
—
Coyote Castro Valley LLC
—
Deed Of Trust
related
$1,750,000 · Comerica Bk
—
—
Robert Frost
—
Deed Of Trust
related
$422,000 · Individual
—
—
Robert Frost
—
Deed Of Trust
related
$400,000 · Individual
—
—
Yeandle Trust
—
Deed Of Trust
related
$1,800,000 · Bank Of America
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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