San Mateo County, CA Apartment Buildings for Sale

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Updated: Jun 12

Mixed-Use Apartment and Retail Building

423 South Van Ness Avenue, San Francisco, CA 94103

$3,725,000

10,367 sqft

Six‑unit Victorian building with 3 ground‑floor commercial suites and 3 residential flats
Residential component features three large 3‑bedroom flats above the retail units
Leasing stability: three long‑term commercial tenants with roughly six‑year weighted‑average term
Principal commercial anchor secured through March 2036 with about $1.1M of committed commercial rent remaining at in‑place rates
Location near transit and major routes: about one block to 16th Street Mission BART and steps from Highway 101

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This listing looks promising.

Here's a quick look at some key insights for

423 South Van Ness Avenue, San Francisco, CA 94103

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Est. Cap Rate

9%
Above avg (5.9%)
Est. NOI

$337K
Annual
Mortgage

$2.29M
Apr 2026
Last Sold

Dec 2025
$2.22M
Property Type

Stores & Apartments
Built 1900

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Updated: Jun 12

Five-Unit Multifamily Apartment Building

1821-1823 Oak Street, San Francisco, CA 94117

$1,995,000

4,457 sqft 0.08 AC lot

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.
Extensive system and capital improvements, including earthquake retrofit and updated electrical systems.
Large, landscaped rear yard, an uncommon amenity in San Francisco.

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Six-Unit Apartment Building

20 Joice Street, San Francisco, CA 94108

$1,495,000

3,750 sqft 0.03 AC lot

Built in 1913 with three studios and three one-bedrooms, plus dedicated back storage.

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Russian Hill Multifamily Investment Opportunity

1316-1326 Vallejo Street, San Francisco, CA 94109

$3,700,000

5,088 sqft

Six-unit apartment building in Russian Hill with potential for individual sale.

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Mixed-Use Building with Retail and Apartments

706 Sacramento Street, San Francisco, CA 94108

$2,500,000

6,720 sqft

Three-story mixed-use building with two ground-floor retail spaces, six apartments, and a vacant basement with separate entrance.

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Newly Painted 5-Unit Multifamily Building

1217-1219 Kearny Street, San Francisco, CA 94133

$2,397,000

3,240 sqft 0.03 AC lot

Five-unit, three-story building with a newly painted exterior and roof deck, including one vacant 2-bedroom unit.

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Mixed-Use Apartment & Restaurant Building

2393 Spg, Redwood City, CA 94063

$1,988,000

6,405 sqft 0.30 AC lot

Five apartments plus an on-site commercial restaurant and a detached 6-garage building near transit and freeway access.

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Russian Hill Multifamily Investment Opportunity

San Francisco, CA 94133

$2,500,000

6,075 sqft

Five full-floor flats with significant rental upside potential.

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San Francisco Multifamily Investment Opportunity

282 Valley Street, San Francisco, CA 94131

$3,480,000

5,950 sqft

Six-unit property with income and rental upside in San Francisco.

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Millbrae Value-Add Development Opportunity

105 Chadbourne Avenue, Millbrae, CA 94030

$6,500,000

7,932 sqft 0.28 AC lot

Two contiguous parcels totaling ±12,000 SF in Millbrae, California.

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San Mateo Multifamily Investment Opportunity

1101 Tilton Ave, San Mateo, CA 94401

$4,998,000

7,756 sqft 0.20 AC lot

12-unit apartment building in a prime San Mateo location.

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Russian Hill Six-Unit Building

1159-1169 Union Street, San Francisco, CA 94109

$3,800,000

9,123 sqft

Six-unit building in Russian Hill with Golden Gate views.

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Haight-Ashbury Quadruplex with In-Law Unit

905 Ashbury, San Francisco, CA 94117

$2,575,000

4,439 sqft

Four units plus legal in-law in prime location.

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Renovated Six-Unit Apartment Building

19 E 41st P, San Mateo, CA 94403

$1,899,000

2,447 sqft 0.18 AC lot

Well-maintained six-unit building with updated interiors, dual-pane windows, and six carport spaces.

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San Francisco Multifamily Investment Opportunity

305 Oak St, San Francisco, CA 94102

$1,999,000

3,950 sqft

Five-unit multifamily property in a desirable San Francisco location.

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San Francisco Multifamily Investment Opportunity

1266-1272 Utah Street, San Francisco, CA 94110

$1,800,000

5,472 sqft

5-unit multifamily property in San Francisco with 100% occupancy.

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Mission Street Mixed-Use Investment

6275-6277 Mission Street, Daly City, CA 94014

$1,198,888

3,873 sqft

Mixed-use property with residential units and retail/office space.

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Multifamily Property in NOPA District

1821 Oak St., San Francisco, CA 94117

$2,200,000

4,457 sqft

Well-maintained five-unit apartment building in San Francisco's NOPA neighborhood.

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Richmond District Multifamily Investment Opportunity

1003-1011 Anza Street, San Francisco, CA 94118

$2,395,000

5,150 sqft

Five-unit building in San Francisco's Richmond District, never before listed.

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Remodeled Multi-Unit Investment Property

739 Amphlett Boulevard, San Mateo, CA 94401

$2,850,000

4,586 sqft

Six remodeled units near Highway 101, downtown, and Caltrain.

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Mixed-Use Hotel and SRO Building

725 Geary Street, San Francisco, CA 94109

$2,995,000

4,986 sqft

Mixed-use building featuring 7 hotel rooms, 15 SRO units, and ground-floor commercial space with three vacant units.

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Knights Inn Apartment Building

100106 Bayshore Boulevard, San Mateo, CA 94401

$9,450,000

24,592 sqft

38-unit apartment property with studio and 1-bedroom units, secured pool, and on-site laundry.

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Five-Unit Apartment Building

1821-1823 Oak Street, San Francisco, CA 94117

$1,995,000

4,457 sqft

Well-maintained five-unit building with updated systems, separate metering, and a landscaped rear yard.

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Period-Era Multifamily Building

655 Hyde Street, San Francisco, CA 94109

$3,350,000

7,932 sqft

Well-maintained 14-unit building with period details, RUBS, and in-building laundry near major neighborhood retail.

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San Mateo County, CA Apartment Buildings Market Trends and Statistics

Explore 75 apartment buildings for sale in San Mateo County, CA, showcased through 75 active listings on our real estate platform. These investment opportunities span a total of 488,255 square feet of properties for sale, with an estimated market value of $244,084,838.

Sale prices for two-family homes in San Mateo County, CA start at $1,198,888, averaging $4,437,906, and reaching up to $18,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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