Search
Updated Duplex with Rental Unit
For Sale
$850,000

3121 Coolidge Ave, Oakland, CA 94602

Renovated two-level property features separate living areas and an upper unit that currently generates rental income.

Property Size3,344 SF
Days on Market201

Property Features for 3121 Coolidge Ave

General Information

Standard status Active
Size 3,344 SF
Property subtype Duplex

Additional Details

Highway Access Yes
Multifamily Units 2

Amenities

No Air Conditioning
Forced Air
Gas Water Heater
Gated Entry, Natural Gas Connected

Building Details

Building Size 3,344 SF
Year Built 1900
Buildings 1
Listing Agency: Compass
Listed By: Jeffery Wong
Source: Kw
Added: Feb 19 Changed: Sep 7 Last Checked: Sep 7 at 7:28PM

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 Compass

Investment Insights

Based on property information with market context.

This duplex, built in 1900, offers a renovated two-level configuration with distinct living areas. The downstairs residence provides approximately 1,570 square feet with 3 bedrooms and 3 full bathrooms, while the upper level is a fully independent unit that currently generates rental income. Both residences include updated finishes.

Property features include forced-air heating, a gas water heater, gated entry, and a natural gas connection. The home is near Oakland’s Dimond and Laurel Districts, with Farmer Joe’s and Grand Lake Kitchen identified among nearby local destinations. Access to I-580 and the redwood trails of Joaquin Miller Park adds convenient regional and recreational connectivity.

Key Highlights

  • Downstairs residence offers approximately 1,570 square feet, 3 bedrooms, and 3 full bathrooms
  • Fully independent upper unit currently generates steady rental income
  • Both units feature updated finishes

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
$76,637
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
9.02%
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%
$1,532,740 $1.5M
Cap Rate 7%
$1,094,814 $1.1M
Cap Rate 9%
$851,522 $851.5K
Market Conditions
NOI Build-Up for 3,344 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
$114.4K $34.20/SF
− Vacancy
−$4.9K −$1.46/SF
EGI
$109.5K $32.74/SF
− OpEx
−$32.8K −$9.82/SF
NOI
$76.6K $22.92/SF
Area
Oakland, CA
Vacancy
4.27%
Lease Rate
$34.20 /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%
$1,532,740
Cap Rate 7%
$1,094,814
Cap Rate 9%
$851,522

Alternative Uses

Best Use
Multifamily LT 5
$1.09M
$958.0K – $1.28M (±1% cap)
NOI $76,637 @ 7.0% cap · market cap 9.02%
Second Best
Apartment 5plus
$1.01M
$882.6K – $1.18M (±1% cap)
NOI $70,609 @ 7.0% cap · market cap 8.31%
Theoretical Best
same as Best Use
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Real Estate Agency Law Firm Dental Office Parking Lot & Garage Skin Care Clinic Big Box & Wholesale Store

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

2
Residential units
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

1,132
Businesses Nearby

Demographics for 94602, CA

29,702
Population
13,072
Households
2.3
Avg Household Size
42
Median Age
58%
College-Educated
89%
High-School Grad
3.6 sq mi
ZIP Area
8,251
Density / Sq Mi
$124,744
Median Household Income
$65,401
Median Earnings
$1,924
Median Rent
$1,111,800
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Duplex - Renovated two-level property features separate living areas and an upper unit that currently generates rental income.
Where is this duplex located?
The property is located at 3121 Coolidge Ave Oakland, CA.
What is the asking price?
The asking price for this property is $850,000.
What are key features of this property?
This property features: Downstairs residence offers approximately 1,570 square feet, 3 bedrooms, and 3 full bathrooms; Fully independent upper unit currently generates steady rental income; Both units feature updated finishes
More about this property
Thanks! Your message was sent.
Error! Your message wasn't sent.
Please enter your name
Please enter email
Please enter the email in the correct format
Please enter phone
Please enter the number in the correct format
Please enter message