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Property profile & analytics
OFF-MARKET
Estimated value
$4,115,000
Apartment buildings
20573 Wisteria St Castro Valley, CA 94546-5546
Individually Owned
3-yr Hold
Free & Clear
Property ID
US09-6916187
Property profile
Verified
Property type
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Year built
1961
Construction
WOOD
Total area
11,392 SF
Lot
0.41 ac (17,750 SF)
APN
84A-160-4
UPID
US09-6916187
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
$4.23M
CAP Approach
CAP
$3.40M
Comparable Approach
Comparable
$4.22M
Blend (final)
Blend
$4.12M
Owner & transaction history
Bel Brook Apartments · 3 yrs held
Bel Brook Apartments
since 2023
Last sale
$4.0M
3 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Restaurant
$5.6M
+81.1%
Neighborhood: shopping center
$4.8M
+56.5%
Auto repair, garage
$4.2M
+36.2%
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
$4,150,000
ML approach
$4,230,000
CAP Approach
CAP Return
Estimation
6%
$3,685,000
6.5%
$3,400,000
7%
$3,155,000
Alternative Use
Use
Estimation
APARTMENT HOUSE (5+ UNITS)
$3,095,000
Current use
RESTAURANT
$5,600,000
Change: +81% · Conversion: Difficult
NEIGHBORHOOD: SHOPPING CENTER
$4,840,000
Change: +56% · Conversion: Difficult
AUTO REPAIR, GARAGE
$4,215,000
Change: +36% · Conversion: Difficult
OFFICE BUILDING
$3,695,000
Change: +19% · Conversion: Moderate
RETAIL STORES
$3,300,000
Change: +7% · Conversion: Difficult
COMMERCIAL (GENERAL)
$3,130,000
Change: +1% · Conversion: Moderate
INDUSTRIAL (GENERAL)
$3,095,000
Change: +0% · Conversion: Difficult
Blend value · Realmo final
$4.12M
Range $3.70M – $4.53M · ±10% · vs last sale $3.98M (Mar 30 2023)
Last sale anchor
$3.98M
Mar 30 2023
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
$361 / 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
$15,572
Tax year 2023
Assessed value
$4,068,019
Assessed 2024
Previous assessed
$450,663
+802.7% YoY
Effective rate
0.38%
On assessed value
Assessed land
$1,468,800
Assessed improvement
$2,599,219
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
Apartment buildings
Use group
APARTMENT HOUSE (5+ UNITS)
Status
Off-Market
Year built
1961
Construction
WOOD
Heating
NONE
Buildings
1
Stories
2
Units
16
Bathrooms
16
Total area
11,392 SF
Lot
0.41 ac (17,750 SF)
APN
84A-160-4
UPID
US09-6916187
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
APARTMENT HOUSE (5+ UNITS) Current
Est. value
$3.1M
RESTAURANT
Est. value
$5.6M
NEIGHBORHOOD: SHOPPING CENTER
Est. value
$4.8M
AUTO REPAIR, GARAGE
Est. value
$4.2M
OFFICE BUILDING
Est. value
$3.7M
RETAIL STORES
Est. value
$3.3M
COMMERCIAL (GENERAL)
Est. value
$3.1M
INDUSTRIAL (GENERAL)
Est. value
$3.1M
APARTMENT HOUSE (5+ UNITS) Current
RESTAURANT
NEIGHBORHOOD: SHOPPING CENTER
AUTO REPAIR, GARAGE
OFFICE BUILDING
RETAIL STORES
COMMERCIAL (GENERAL)
INDUSTRIAL (GENERAL)
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
1961
Construction
WOOD
Heating
NONE
Stories
2
Buildings
1
Units
16
Bathrooms
16
Lot
0.41 ac
Current owner
From public records · entity-resolved
Bel Brook Apartments
Individual
Free & Clear · 3 yrs held
Mailing address
17760 SWEETBRIAR PL, CASTRO VALLEY, CA 94546-1357
Ownership since
2023
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Mar 30, 2023
$3,983,500
Bel Brook Apartments
Hanson And Hanson Builders INC
Grant Deed
—
—
—
Hanson
—
Deed Of Trust
related
$650,000 · World Savings & Loan
Jul 13, 1960
—
Hanson Bldrs
Owner Name Unavailable
Grant Deed
related
—
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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