Duplex With Detached Two-Car
For Sale
$1,409,800
20843 Chester St, Castro Valley, CA 94546
Two-unit property with landscaped grounds, storage improvements, and access to schools, shops, dining, BART, and public transportation.
Property Size1,590 SF
Lot Size0.25 Acres
Price / SF$886.67
Days on Market10
Property Features for 20843 Chester St
General Information
Standard status
Active
Size
1,590 SF
Total Parking Spaces
2
Lot size
0.25 Acres
Property subtype
Multi Family
Building Details
Year Built
1949
Buildings
2
Listing Agency:
Vetted Real Estate
(510) 329-8984
Listed By:
David Wilhite · License #00759835
(510) 329-8984
Source:
Exitrealty
Added: Jul 31
Changed: Aug 8
Last Checked: Aug 8 at 5:46AM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Vetted Real Estate
Investment Insights
Based on property information with market context.
Built in 1949, this duplex contains approximately 1,590 square feet of living area across two residential units. The unit mix includes one two-bedroom, one-bath residence and one one-bedroom, one-bath residence. The property also features landscaped grounds, a detached two-car garage, and additional storage improvements.
The approximately 11,084-square-foot lot is located on Chester St in Castro Valley, with elementary and high schools, shops, restaurants, BART, and public transportation within walking distance. The Alameda County Planner has indicated that the lot may potentially accommodate five Accessory Dwelling Units, subject to applicable review and approvals.
The approximately 11,084-square-foot lot is located on Chester St in Castro Valley, with elementary and high schools, shops, restaurants, BART, and public transportation within walking distance. The Alameda County Planner has indicated that the lot may potentially accommodate five Accessory Dwelling Units, subject to applicable review and approvals.
Key Highlights
- Two‑unit duplex with one 2‑bedroom, 1‑bath unit and one 1‑bedroom, 1‑bath unit
- Approximately 1,590 square feet of living area
- Approximately 11,084 square feet of lot area
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$53,369
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
3.79%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
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
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
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 rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
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 3.79%
Second Best
Apartment 5plus
$329.0K
$287.9K – $383.9K
NOI $23,033 @ 7.0% cap · market cap 1.63%
Theoretical Best
Retail
$7.25M
$6.34M – $8.46M
NOI $507,411 @ 7.0% cap · market cap 35.99%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Current Use
Location Intelligence
Trade Area within ½ mile
2,523
Businesses Nearby
Explore this area
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
Market
Vacancy Rate% for Multifamily in West region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Two-unit property with landscaped grounds, storage improvements, and access to schools, shops, dining, BART, and public transportation.
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 $1,409,800.
What are key features of this property?
This property features: Two‑unit duplex with one 2‑bedroom, 1‑bath unit and one 1‑bedroom, 1‑bath unit; Approximately 1,590 square feet of living area; Approximately 11,084 square feet of lot area
