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Five-Unit Multifamily Apartment Building
For Sale
$1,995,000

1821-1823 Oak Street, San Francisco, CA 94117

Other - San Francisco, CA

Property Size4,457 SF
Lot Size0.08 Acres
Price / SF$447.61
Days on Market81

Property Features for 1821-1823 Oak Street

General Information

Property type Other
Property subtype Multi Family
Bedrooms 7
Rooms Bedroom 1, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5
Parking 1
Parking features Garage
Standard status Active
APN 1225035
Size 4,457 SF
Lot size 0.08 Acres

Building Details

Year built 1900
Architectural style Other
Listing Agency: Engel & Völkers San Francisco Union Street
Listed By: Michael B Johnston
Added: Jun 12 Changed: Jul 15 Last Checked: Aug 31 at 11:06AM
MLS# 426132539

Copyright © 2026 Engel & Völkers. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

1821-1823 Oak Street is a well-maintained five-unit apartment building comprising three 2-bedroom/1-bath units, one 1-bedroom/1-bath unit, and one studio apartment, totaling approximately 4,457 square feet. The property is fully occupied and professionally managed. Documented improvements include completed earthquake retrofit work, updated electrical systems, and separate gas and electric metering for each unit. Several apartments have been remodeled with updated kitchens and baths while keeping bright, spacious, functional layouts. The building also features a large landscaped rear yard with direct access from the expansive ground-floor flat, along with a large one-car garage and dedicated tenant storage areas.

Located in San Francisco, the property benefits from a neighborhood setting described as the NOPA area. The residential configuration supports straightforward tenant living, and the rear-yard amenity adds meaningful outdoor space uncommon for many apartment buildings.

For tenants, the unit mix provides multiple options, from studio through two-bedroom layouts, with individual gas and electric metering and an outdoor common area accessed directly from the ground-floor unit. For buyers, the current fully occupied status, professionally managed operations, and documented system and capital improvements can support an efficiently run income-producing multifamily asset.

Key Highlights

  • Located in the highly desirable NOPA neighborhood of San Francisco.
  • Five‑unit apartment building with a mix of unit types (3 x 2‑bed/1‑bath, 1 x 1‑bed/1‑bath, 1 x studio).
  • Stable in‑place income with attractive future rental upside potential.

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
$144,706
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
7.25%
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%
$2,894,120 $2.9M
Cap Rate 7%
$2,067,229 $2.1M
Cap Rate 9%
$1,607,844 $1.6M
Market Conditions
NOI Build-Up for 4,457 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
$280.8K $63.00/SF
− Vacancy
−$17.7K −$3.97/SF
EGI
$263.1K $59.03/SF
− OpEx
−$118.4K −$26.56/SF
NOI
$144.7K $32.47/SF
Area
San Francisco, CA
Vacancy
6.30%
Lease Rate
$63.00 /SF/Yr
Expense Ratio
45.00%
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%
$2,894,120
Cap Rate 7%
$2,067,229
Cap Rate 9%
$1,607,844

Alternative Uses

Best Use
Apartment 5plus
$2.07M
$1.81M – $2.41M (±1% cap)
NOI $144,706 @ 7.0% cap · market cap 7.25%
Second Best
no second resolved use
Theoretical Best
Specialty Retail
$21.77M
$19.05M – $25.40M (±1% cap)
NOI $1,523,943 @ 7.0% cap · market cap 76.39%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Apartment buildings

Suggested Use

Top Pick Law Firm Real Estate Agency HVAC Service Kitchen & Bath Showroom Barber Shop Food Market

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

5
Residential units
100%
Occupancy

Location Intelligence

Trade Area within ½ mile

4,215
Businesses Nearby

Demographics for 94117, CA

38,451
Population
19,709
Households
2
Avg Household Size
36
Median Age
78%
College-Educated
96%
High-School Grad
1.3 sq mi
ZIP Area
29,578
Density / Sq Mi
$175,096
Median Household Income
$106,542
Median Earnings
$2,786
Median Rent
$1,641,400
Median Home Value

Market

Vacancy Rate% for Multifamily in West region

7% 2022
7.8% 2023
8.6% 2024
8.6% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Apartment building - Well-maintained five-unit building with separate utilities, capital improvements, and a landscaped rear yard.
Where is this apartment building located?
The property is located at 1821-1823 Oak Street San Francisco, CA.
What is the asking price?
The asking price for this property is $1,995,000.
What are key features of this property?
This property features: Located in the highly desirable NOPA neighborhood of San Francisco.; Five‑unit apartment building with a mix of unit types (3 x 2‑bed/1‑bath, 1 x 1‑bed/1‑bath, 1 x studio).; Stable in‑place income with attractive future rental upside potential.
More about this property
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