Two-Unit Duplex with Detached
For Sale
$1,298,800
20843 Chester St, Castro Valley, CA 94546
Residential Income, Castro Valley, CA
Property Size1,590 SF
Lot Size0.26 Acres
Price / SF$816.86
Days on Market95
Property Features for 20843 Chester St
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Bedrooms
3
Bathrooms
4
Full bathrooms
4
Rooms
Bedroom 2, Bathroom 3, Bedroom 3, Bedroom 1, Bathroom 2, Laundry Room, Bathroom 1, Bathroom 4
Parking features
Off Street, Garage
Window features
Window Coverings
Interior features
Tub w/Shower Over
Exterior features
Front Yard, Garden/Play, Storage Area, Yard Space
Fencing
Fenced, Partial
Appliances
Dishwasher, Disposal, Gas Water Heater
Subdivision
Downtown
Lot features
Cul-De-Sac, Level, Premium Lot, Front Yard, Landscaped, Paved
Elementary school district
Castro Valley (510) 537-3000
High school district
CASTRO VALLEY UNIFIED SCHOOL DISTRICT
Directions
Castro Valley Blvd. Left or Right on Chester St...
Standard status
Active
APN
84A3762
Size
1,590 SF
Lot size
0.26 Acres
Utilities
Sewer type
Public Sewer
Heating system
Natural Gas
Cooling system
Ceiling Fan(s)
Water source
Public
Building Details
Year built
1949
Number of units
2
Flooring type
Laminate, Carpet
Building materials
Stucco
Roof type
Composition
Additional Structures
Storage
Listing Agency:
Vetted Real Estate
(510) 886-1100
Listed By:
David Wilhite
(510) 329-8984
Added: Jul 24
Changed: Oct 23
Last Checked: Oct 26 at 7:06PM
MLS# 41142494
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.
This Castro Valley duplex contains approximately 1,590 square feet across two residences: one with two bedrooms and one bathroom, and another with one bedroom and one bathroom. The property was built in 1949 and includes a detached two-car garage, storage improvements, and landscaped yard areas. Interior features include a laundry room, carpet and laminate flooring, a dishwasher, and a gas water heater.
At 20843 Chester St, the property is within walking distance of elementary and high schools, shops, restaurants, BART, and public transportation. Public water and sewer serve the property.
At 20843 Chester St, the property is within walking distance of elementary and high schools, shops, restaurants, BART, and public transportation. Public water and sewer serve the property.
Key Highlights
- Two residences: one 2‑bedroom, 1‑bath unit and one 1‑bedroom, 1‑bath unit
- Approximately 1,590 square feet of living area
- Detached two‑car garage and storage improvements
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$53,369
Cap Rate
4.11%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,067,380
$1.1M
Cap Rate 7%
$762,414
$762.4K
Cap Rate 9%
$592,989
$593.0K
Market Conditions
NOI Build-Up for 1,590 SF
Gross rent
$81.1K $51.00/SF
− Vacancy
−$4.8K −$3.05/SF
EGI
$76.2K $47.95/SF
− OpEx
−$22.9K −$14.39/SF
NOI
$53.4K $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%
$1,067,380
Cap Rate 7%
$762,414
Cap Rate 9%
$592,989
Alternative Uses
Best Use
Multifamily LT 5
$762.4K
$667.1K – $889.5K
NOI $53,369 @ 7.0% cap · market cap 4.11%
Second Best
Apartment 5plus
$329.0K
$287.9K – $383.9K
NOI $23,033 @ 7.0% cap · market cap 1.77%
Theoretical Best
Retail
$7.25M
$6.34M – $8.46M
NOI $507,411 @ 7.0% cap · market cap 39.07%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
2,523
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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Market
Vacancy Rate% for Multifamily in West region
Frequently Asked Questions
What type of property is this?
Duplex - The residences have distinct bedroom layouts, complemented by a detached garage and separate storage improvements.
Where is this duplex located?
The property is located at 20843 Chester St Castro Valley, CA.
What is the asking price?
The asking price for this property is $1,298,800.
What are key features of this property?
This property features: Two residences: one 2‑bedroom, 1‑bath unit and one 1‑bedroom, 1‑bath unit; Approximately 1,590 square feet of living area; Detached two‑car garage and storage improvements
