2-Unit Duplex with Private
20273-20275 Stanton Ave, Castro Valley, CA 94546
For Sale
New
$999,000
Residential Income, Castro Valley, CA
Property Size1,680 SF
Lot Size0.11 Acres
Price / SF$594.64
Days on Market6
Property Features for 20273-20275 Stanton Ave
General Information
Property type
Property subtype
Bedrooms
Bathrooms
Full bathrooms
Rooms
Parking features
Interior features
Exterior features
Subdivision
Lot features
Directions
Standard status
APN
Size
Lot size
Utilities
Sewer type
Heating system
Water source
Amenities
garage
backyard
dishwasher
Building Details
Year built
Number of units
Flooring type
Building materials
Roof type
Buildings
Listing Agency:
KW Advisors East Bay · Keller Williams Realty
(510) 775-1079
Listed By:
Danielle Keil · License CA #01280917
(510) 381-7451
Added: Nov 9
Changed: Nov 13
Last Checked: Nov 13 at 11:06PM
MLS# 41153409
Copyright © 2026 Bay East. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
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Investment Insights
Based on property information with market context.
Built in 1937, this duplex contains two residences with a combined 1,680 square feet on a 0.1148-acre lot. Each unit has two bedrooms, one bathroom, a dishwasher, a private one-car garage, and driveway parking. The front residence has been remodeled, while the rear unit opens to its own backyard. Vinyl flooring, wall furnaces, and wood siding are among the property’s features.
The property is near Eden Hospital and neighborhood shops, cafes, and daily services. Public water and sewer serve the site.
The property is near Eden Hospital and neighborhood shops, cafes, and daily services. Public water and sewer serve the site.
Key Highlights
- Two 2‑bedroom, 1‑bathroom residences
- 1,680 square feet of building area on a 0.1148‑acre lot
- Private one‑car garage and driveway parking for each unit
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$56,389
Cap Rate
5.64%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,127,780
$1.1M
Cap Rate 7%
$805,557
$805.6K
Cap Rate 9%
$626,544
$626.5K
Market Conditions
NOI Build-Up for 1,680 SF
Gross rent
$85.7K $51.00/SF
− Vacancy
−$5.1K −$3.05/SF
EGI
$80.6K $47.95/SF
− OpEx
−$24.2K −$14.39/SF
NOI
$56.4K $33.57/SF
Area
Alameda County, CA
Vacancy
5.98%
Lease Rate
$51.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,127,780
Cap Rate 7%
$805,557
Cap Rate 9%
$626,544
Alternative Uses
Best Use
Multifamily LT 5
$805.6K
$704.9K – $939.8K
NOI $56,389 @ 7.0% cap · market cap 5.64%
Second Best
Apartment 5plus
$347.7K
$304.2K – $405.6K
NOI $24,337 @ 7.0% cap · market cap 2.44%
Theoretical Best
—
—
same as Best Use
Zoning and permitted uses should be independently verified with authorities.
How Realmo checks its estimates
Property Analytics
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
1,588
Businesses Nearby
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Business Placement
Demographics for 94546, CA
46,687
Population
16,398
Households
2.8
Avg Household Size
40
Median Age
41%
College-Educated
90%
High-School Grad
16.0 sq mi
ZIP Area
2,918
Density / Sq Mi
$125,780
Median Household Income
$66,737
Median Earnings
$2,506
Median Rent
$976,300
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Average Price Trend$/SF for Duplexes in Alameda County, CA
Properties on Market for Duplexes in Alameda County
Vacancy Rate% for Multifamily in West region
Frequently Asked Questions
What type of property is this?
Duplex - Each residence has two bedrooms, one bathroom, a dishwasher, and driveway parking.
Where is this duplex located?
The property is located at 20273-20275 Stanton Ave Castro Valley, CA.
What is the asking price?
The asking price for this property is $999,000.
What are key features of this property?
This property features: Two 2‑bedroom, 1‑bathroom residences; 1,680 square feet of building area on a 0.1148‑acre lot; Private one‑car garage and driveway parking for each unit
