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Duplex with Legal Lower-Level Unit
New
For Sale
$2,400,000

4327-4329 20th Street, San Francisco, CA 94114

A remodeled kitchen connects the main residence to a landscaped garden and patio.

Property Size2,678 SF
Price / SF$896.19
Days on Market2

Property Features for 4327-4329 20th Street

General Information

Standard status Active
Size 2,678 SF
Property subtype Multi-Family

Site & Location

Neighborhood Castro/Upper Market

Units

Unit Mix 1 x 4BR/2BA, 1 x 1BR/1BA
Multifamily Units 2

Amenities

patio
landscaped garden
laundry
gated entry
attic
storage

Building Details

Year Built 1890
Buildings 1
Construction Stick-Eastlake Victorian
Listing Agency: Colliers International
Listed By: Readdress
Source: Readdress
Added: Oct 30 Changed: Oct 31 Last Checked: Oct 30 at 3:09PM

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 Colliers International

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Investment Insights

Based on property information with market context.

This detached Victorian duplex pairs a four-bedroom upper residence with a separate legal lower-floor unit. The main home includes two remodeled full bathrooms, formal living and dining rooms, a remodeled kitchen with walk-in pantry, and a laundry closet with a combination washer and dryer. Interior details include 11-foot, 6-inch ceilings, bay windows, stained glass, hardwood floors, fireplaces, and an attic. The lower unit has one bedroom, a remodeled full bathroom, living room, eat-in kitchen, and washer and dryer hookups.

Outdoor features include a patio and landscaped south-facing garden with Sutro Tower views. The property is in Eureka Valley, near Castro District cafes, restaurants, boutiques, and the Castro Theatre. Its Walk Score is 98.

Key Highlights

  • Detached Victorian duplex with a separate legal lower‑floor unit
  • Main residence has four bedrooms and two remodeled full bathrooms
  • Lower unit includes one bedroom, a remodeled full bathroom, and an eat‑in kitchen

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$95,175
Cap Rate
3.97%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,903,500 $1.9M
Cap Rate 7%
$1,359,643 $1.4M
Cap Rate 9%
$1,057,500 $1.1M
Market Conditions
NOI Build-Up for 2,678 SF
Gross rent
$144.6K $54.00/SF
− Vacancy
−$8.6K −$3.23/SF
EGI
$136.0K $50.77/SF
− OpEx
−$40.8K −$15.23/SF
NOI
$95.2K $35.54/SF
Area
San Francisco, CA
Vacancy
5.98%
Lease Rate
$54.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,903,500
Cap Rate 7%
$1,359,643
Cap Rate 9%
$1,057,500

Alternative Uses

Best Use
Multifamily LT 5
$1.36M
$1.19M – $1.59M (±1% cap)
NOI $95,175 @ 7.0% cap · market cap 3.97%
Second Best
Apartment 5plus
$1.24M
$1.09M – $1.45M (±1% cap)
NOI $86,947 @ 7.0% cap · market cap 3.62%
Theoretical Best
Specialty Retail
$13.08M
$11.45M – $15.26M (±1% cap)
NOI $915,665 @ 7.0% cap · market cap 38.15%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

3,582
Businesses Nearby

Demographics for 94114, CA

33,683
Population
18,686
Households
1.8
Avg Household Size
40
Median Age
79%
College-Educated
98%
High-School Grad
1.4 sq mi
ZIP Area
24,059
Density / Sq Mi
$196,528
Median Household Income
$117,677
Median Earnings
$2,898
Median Rent
$1,771,700
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025

Frequently Asked Questions

What type of property is this?
Duplex - A remodeled kitchen connects the main residence to a landscaped garden and patio.
Where is this duplex located?
The property is located at 4327-4329 20th Street San Francisco, CA.
What is the asking price?
The asking price for this property is $2,400,000.
What are key features of this property?
This property features: Detached Victorian duplex with a separate legal lower‑floor unit; Main residence has four bedrooms and two remodeled full bathrooms; Lower unit includes one bedroom, a remodeled full bathroom, and an eat‑in kitchen
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