New search
Property profile & analytics
OFF-MARKET
Estimated value
$1,575,000
Office buildings
21666 Redwood Rd, Castro Valley, CA 94546-6440
Individually Owned
4-yr Hold
~
Est. High Equity
Property ID
US09-8012185
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1979
Construction
WOOD
Total area
4,218 SF
Lot
0.27 ac (11,877 SF)
APN
416-10-16-4
UPID
US09-8012185
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
$1.56M
CAP Approach
CAP
$1.09M
Comparable Approach
Comparable
$1.73M
Blend (final)
Blend
$1.58M
Owner & transaction history
Center For Jewish Life · 4 yrs held
Center For Jewish Life
since 2022
Last sale
$1.6M
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Neighborhood: shopping center
$1.8M
+31.0%
Auto repair, garage
$1.6M
+14.0%
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
$1,385,000
ML approach
$1,560,000
CAP Approach
CAP Return
Estimation
6%
$1,175,000
6.5%
$1,085,000
7%
$1,005,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$1,370,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$1,790,000
Change: +31% · Conversion: Difficult
AUTO REPAIR, GARAGE
$1,560,000
Change: +14% · Conversion: Difficult
RETAIL STORES
$1,220,000
Change: -11% · Conversion: Moderate
COMMERCIAL (GENERAL)
$1,160,000
Change: -15% · Conversion: Easy
MEDICAL BUILDING
$1,125,000
Change: -18% · Conversion: Easy
Blend value · Realmo final
$1.58M
Range $1.42M – $1.73M · ±10% · vs last sale $1.60M (Jun 2 2022)
Last sale anchor
$1.60M
Jun 2 2022
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
$373 / 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
$22,962
Tax year 2023
Assessed value
$1,664,640
Assessed 2024
Previous assessed
$1,632,000
+2.0% YoY
Effective rate
1.38%
On assessed value
Assessed land
$572,220
Assessed improvement
$1,092,420
Applied tax rate
59.0000
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
1979
Construction
WOOD
Heating
NONE
Buildings
1
Stories
1
Units
7
Total area
4,218 SF
Lot
0.27 ac (11,877 SF)
APN
416-10-16-4
UPID
US09-8012185
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
$1.4M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$1.8M
AUTO REPAIR, GARAGE
Est. value
$1.6M
RETAIL STORES
Est. value
$1.2M
COMMERCIAL (GENERAL)
Est. value
$1.2M
MEDICAL BUILDING
Est. value
$1.1M
OFFICE BUILDING Current
NEIGHBORHOOD: SHOPPING CENTER
AUTO REPAIR, GARAGE
RETAIL STORES
COMMERCIAL (GENERAL)
MEDICAL BUILDING
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
1979
Construction
WOOD
Heating
NONE
Stories
1
Buildings
1
Units
7
Lot
0.27 ac
Current owner
From public records · entity-resolved
Center For Jewish Life
Individual
Mailing address
22125 ORANGE AVE, CASTRO VALLEY, CA 94546-6937
Ownership since
2022
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
7 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jun 2, 2022
$1,600,000
Center For Jewish Life
Laura L Korbas
Grant Deed
—
Oct 5, 2015
—
Korbas,laura L 2005 Trust
Korbas Gary Trust
Quit Claim Deed
related
—
Jul 19, 1996
—
Korbas Trust
Korbas,gary
Quit Claim Deed
related
—
Aug 18, 1994
$650,000
Korbas,gary G
Hollander,adele
Trustees Deed
$355,000 · Wells Fargo Bank
Aug 18, 1994
—
Gary G Korbas
Korbas,laura
Quit Claim Deed
related
—
—
—
Adele C Hollander
—
Deed Of Trust
related
$155,000 · Mechanics National Bank
—
—
Gary G Korbas
—
Deed Of Trust
related
$310,000 · 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.
Try Rey
Ask anything about this address in plain English.
“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
You own 21666 Redwood Rd?
List it free. Reach 20,000 daily buyers.
We’ve already pulled the facts. Confirm photos + price and you’re live in 2 minutes.
List this address →
Full reports are paid
Unlock the full Property Analytics report
Start free for 7 days — no card required. Full owner contacts, all 4 valuations with methodology, refine flow, comparable adjustments, foot-traffic deep dive, export to PDF / CSV.
