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Property profile & analytics
OFF-MARKET
Estimated value
$620,000
Office Spaces
21087 Cabot Blvd Ste 6 Hayward, CA 94545-1147
Individually Owned
2-yr Hold
Free & Clear
Property ID
US09-6686592
Property profile
Verified
Property type
Office Spaces
Use group
CONDOMINIUM OFFICES
Year built
1981
Construction
TILT-UP CONCRETE
Total area
1,800 SF
Lot
0.1 ac (4,410 SF)
APN
439-58-106
UPID
US09-6686592
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
$620k
CAP Approach
CAP
$460k
Comparable Approach
Comparable
$461k
Blend (final)
Blend
$620k
Owner & transaction history
Thomas Kamtim Lo · 2 yrs held
Thomas Kamtim Lo
since 2024
Last sale
$619,000
6 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Neighborhood: shopping center
$765,000
+64.4%
Auto repair, garage
$665,000
+43.1%
Retail stores
$520,000
+12.1%
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 Hayward submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Hayward 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
$620,000
ML approach
$620,000
CAP Approach
CAP Return
Estimation
6%
$500,000
6.5%
$460,000
7%
$430,000
Alternative Use
Use
Estimation
OFFICE BUILDING
$465,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$765,000
Change: +64% · Conversion: Difficult
AUTO REPAIR, GARAGE
$665,000
Change: +43% · Conversion: Difficult
RETAIL STORES
$520,000
Change: +12% · Conversion: Moderate
COMMERCIAL (GENERAL)
$495,000
Change: +6% · Conversion: Easy
MEDICAL BUILDING
$480,000
Change: +3% · Conversion: Easy
Blend value · Realmo final
$620k
Range $558k – $682k · ±10% · vs last sale $619k (Mar 26 2024)
Last sale anchor
$619k
Mar 26 2024
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
$344 / 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
$4,436
Tax year 2023
Assessed value
$331,831
Assessed 2024
Previous assessed
$325,325
+2.0% YoY
Effective rate
1.34%
On assessed value
Assessed land
$43,340
Assessed improvement
$288,491
Applied tax rate
25.0000
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 Spaces
Use group
CONDOMINIUM OFFICES
Status
Off-Market
Year built
1981
Construction
TILT-UP CONCRETE
Heating
NONE
Buildings
1
Stories
1
Units
1
Bathrooms
1
Total area
1,800 SF
Lot
0.1 ac (4,410 SF)
APN
439-58-106
UPID
US09-6686592
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
$465,000
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$765,000
AUTO REPAIR, GARAGE
Est. value
$665,000
RETAIL STORES
Est. value
$520,000
COMMERCIAL (GENERAL)
Est. value
$495,000
MEDICAL BUILDING
Est. value
$480,000
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
1981
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
1
Buildings
1
Units
1
Bathrooms
1
Lot
0.1 ac
Current owner
From public records · entity-resolved
Thomas Kamtim Lo
Individual
Free & Clear · 2 yrs held
Mailing address
905 HELEN DR, MILLBRAE, CA 94030-1539
Ownership since
2024
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
6 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Mar 26, 2024
$619,000
Thomas Kamtim Lo
Andre V Ernst
Grant Deed
—
Sep 27, 2002
—
Ernst,tr
Ernst,rivhard H
Quit Claim Deed
related
—
Feb 19, 2002
—
Ernst Trust
Ernst,richard
Quit Claim Deed
related
—
Sep 8, 2000
—
Richard H Ernst
Ernst,andre V
Quit Claim Deed
related
—
Mar 3, 2000
—
Ernst Trust
Ernst,richard
Quit Claim Deed
related
—
Dec 5, 1991
$127,000
Richard Ernst
Wilson Daniel C&
Grant Deed
—
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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