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Property profile & analytics
OFF-MARKET
Estimated value
$2,230,000
Investment properties
828 B St Hayward, CA 94541-5108
Entity Owned
~
Est. High Equity
Property ID
US09-6700295
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1918
Construction
TILT-UP CONCRETE
Total area
8,550 SF
Lot
0.11 ac (4,961 SF)
APN
428-51-63
UPID
US09-6700295
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
-
Hair By Blanca Hair Salon
-
MIVA SALON Hair Salon Nail Salon
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
$2.30M
Comparable Approach
Comparable
$1.63M
Blend (final)
Blend
$2.23M
Owner & transaction history
828 B St LLC
828 B St LLC
since 2025
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Neighborhood: shopping center
$3.6M
+50.2%
Auto repair, garage
$3.2M
+30.8%
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
$2,985,000
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
$2,485,000
6.5%
$2,295,000
7%
$2,130,000
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$2,420,000
Current use
NEIGHBORHOOD: SHOPPING CENTER
$3,630,000
Change: +50% · Conversion: Difficult
AUTO REPAIR, GARAGE
$3,160,000
Change: +31% · Conversion: Difficult
INDUSTRIAL (GENERAL)
$2,325,000
Change: -4% · Conversion: Moderate
RETAIL STORES
$2,315,000
Change: -4% · Conversion: Easy
MEDICAL BUILDING
$2,280,000
Change: -6% · Conversion: Easy
OFFICE BUILDING
$2,100,000
Change: -13% · Conversion: Easy
Blend value · Realmo final
$2.23M
Range $2.01M – $2.45M · ±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
$261 / 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
$15,266
Tax year 2023
Assessed value
$1,222,000
Assessed 2024
Previous assessed
$1,137,810
+7.4% YoY
Effective rate
1.25%
On assessed value
Assessed land
$200,000
Assessed improvement
$1,022,000
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
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
Off-Market
Year built
1918
Construction
TILT-UP CONCRETE
Heating
NONE
Buildings
1
Stories
2
Rooms
6
Bathrooms
3
Total area
8,550 SF
Lot
0.11 ac (4,961 SF)
APN
428-51-63
UPID
US09-6700295
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
COMMERCIAL (GENERAL) Current
Est. value
$2.4M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$3.6M
AUTO REPAIR, GARAGE
Est. value
$3.2M
INDUSTRIAL (GENERAL)
Est. value
$2.3M
RETAIL STORES
Est. value
$2.3M
MEDICAL BUILDING
Est. value
$2.3M
OFFICE BUILDING
Est. value
$2.1M
COMMERCIAL (GENERAL) Current
NEIGHBORHOOD: SHOPPING CENTER
AUTO REPAIR, GARAGE
INDUSTRIAL (GENERAL)
RETAIL STORES
MEDICAL BUILDING
OFFICE 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
1918
Construction
TILT-UP CONCRETE
Heating
NONE
Stories
2
Buildings
1
Rooms
6
Bathrooms
3
Lot
0.11 ac
Current owner
From public records · entity-resolved
828 B St LLC
Entity
Mailing address
750 107TH AVE, OAKLAND, CA 94603-3657
Ownership since
2025
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
14 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Aug 27, 2025
—
828 B St LLC
Oak Palace LLC
Grant Deed
—
Sep 17, 2024
—
Yangja Kwon
Yangja Kwon
Deed
related
$1,225,000 · Heritage Bank Of Commerce
Jul 21, 2023
$3,300,000
Oak Palace LLC
Saul Gevertz
Grant Deed
—
Aug 30, 2016
—
Howard Schindler
—
Deed
related
$530,000 · Rapp Nancy L Living Tr (lt)
Nov 25, 2015
$1,000,000
Howard Schindler
George A Diamantine
Grant Deed
—
Nov 25, 2015
—
Saul Gevertz
Gevertz,joanne S
Quit Claim Deed
related
—
Apr 19, 2002
—
Diamantine Trust
Diamantine,george A
Quit Claim Deed
related
—
Mar 9, 1999
—
George A Diamantine
Diamantine,christine S
Quit Claim Deed
related
$224,000 · Bank Of The West
Jun 6, 1997
—
George Diamantine
Diamnatine,christine
Quit Claim Deed
related
—
Nov 21, 1994
—
George A Diamantine
Diamantine,george & Christine
Quit Claim Deed
related
$223,000 · Bank Of The West
Feb 1, 1991
$80,000
Georg Diamantine
Myrtle Trust/rav
Grant Deed
—
—
—
Howard Schindler
—
Deed Of Trust
related
$200,000 · Private Individual
—
—
Howard Schindler
—
Deed Of Trust
related
$530,000 · Rapp Nancy L Living Tr (lt)
—
—
Georg Diamantine
—
Deed Of Trust
related
$40,000 · Individual
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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