San Mateo County, CA Quadplexes for Sale

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Updated: Jul 8

Permitted Residential Development Site

930 Baker Street, San Francisco, CA 94115

$2,995,000

8,000 sqft

Fully permitted, shovel‑ready street‑to‑street development site in San Francisco
Approved plans for a new residential building of up to 8,000+ SF and up to four units
Street‑to‑street lot with approved project designed to capture panoramic downtown views
Located just blocks from University of San Francisco, Kaiser Permanente Medical Center, and Golden Gate Park

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This listing looks promising.

Here's a quick look at some key insights for

930 Baker Street, San Francisco, CA 94115

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Est. Cap Rate

8.7%
Above avg (5.9%)
Est. NOI

$260K
Annual
Price @ 7% Cap

$3.71M
Above asking
Property Type

Duplex
Built 1949

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Updated: Jul 1

Art Deco Quadplex with Garage

1836-1840 Greenwich Street, San Francisco, CA 94123

$3,255,500

4,094 sqft 0.08 AC lot

Quadplex totaling 4,094 square feet on a 0.0789‑acre lot
1932 construction with Art Deco period detailing
Front building includes upper flat plus lower two‑bedroom and one‑bedroom units
Separate rear one‑bedroom house
High‑ceiling garage with tandem parking and courtyard access

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4-Unit Apartment Building

444 Villa TER, San Mateo, CA 94401

$2,495,000

3,607 sqft 0.17 AC lot

Wood-frame multifamily property with private outdoor areas, assigned covered parking, and a remodeled kitchen in one residence.

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Renovation-Ready Quadplex

882 Florida Street, San Francisco, CA 94110

$699,000

2,434 sqft 0.03 AC lot

One unit will be delivered vacant, while the other residences provide existing rental income potential.

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Remodeled Four-Unit Quadplex

519 Natoma Street, San Francisco, CA 94103

$1,598,000

3,030 sqft 0.04 AC lot

Tenant-occupied units feature updated kitchens, baths, and hardwood flooring.

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Four-Unit Building with Vacancies

559-561 Minna Street, San Francisco, CA 94103

$1,898,000

3,038 sqft 0.05 AC lot

SOMA multifamily property with flexible occupancy, shared laundry, parking, and a partially built-out garden-level area.

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Vacant Duplex with Bonus Apartments

471 31st Avenue, San Francisco, CA 94121

$2,500,000

4,624 sqft 0.07 AC lot

Two primary three-bedroom flats are paired with existing bonus apartments and a ground-level garage.

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Townhouse-Style Quadplex

324 Susie Way, South San Francisco, CA 94080

$1,868,000

4,767 sqft 0.08 AC lot

Four separately configured residences with attached garage spaces and recent exterior and interior improvements.

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Inner Sunset Mixed-Use Investment

1377-1379 9TH Avenue, San Francisco, CA 94122

$2,299,000

4,881 sqft

Four-unit mixed-use property in San Francisco's Inner Sunset District.

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Remodeled Duplex With Outdoor Space

341-343 Surrey Street, San Francisco, CA 94131

$1,399,000

3,124 sqft

This 1908 property includes hardwood-floored living areas and private exterior space.

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Remodeled 4-Unit Multifamily Building

519 Natoma Street, San Francisco, CA 94103

$1,598,000

3,030 sqft

A well-maintained fourplex with remodeled one-bedroom units, tenant occupancy, and a large three-car garage.

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Newly Constructed Fourplex with Solar

1460 Kentfield Avenue, Redwood City, CA 94061

$5,689,000

5,892 sqft

Four-unit property offers townhome-style and single-story layouts with fully paid solar panels.

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Four-Unit Quadplex on Private Lane

971977 Oak Lane, Menlo Park, CA 94025

$4,950,000

5,088 sqft

Two duplex structures offer four residential units with garage-connected walls and separate home-like layouts.

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Mixed-Use Building with Ground-Floor Retail

577 Laurel St, San Carlos, CA 94070

$4,200,000

5,554 sqft

Five-unit mixed-use property with four residential units and prominent ground-floor commercial frontage.

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Marina-Style Four-Unit Apartment Building

1133 Webster Street, San Francisco, CA 94115

$1,750,000

3,650 sqft

Maintained multifamily property with updated interiors, resident laundry, garage parking, and a west-facing shared garden patio.

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Quadplex with Private Outdoor Space

San Mateo, CA 94401

$2,495,000

0.17 AC lot

Four residences feature two bedrooms, one bath, and individual outdoor areas, with select parking and recent property improvements.

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Mixed-Use Property with Retail

256167 El Camino Real, Redwood City, CA 94061

$4,000,000

6,385 sqft

Two ground-floor retail/commercial spaces plus four residential units with 13 on-site parking spaces and access from two streets.

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2-Bedroom 4-Unit Income Property

559-561 Minna Street, San Francisco, CA 94103

$1,898,000

3,038 sqft

Four spacious 2-bedroom, 2-bath units with parking and laundry, plus garden-level space with potential for an added unit.

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Updated Quadplex with Four Units

2804 Curtis Avenue, Redwood City, CA 94063

$1,618,000

2,080 sqft 0.11 AC lot

Select improvements include kitchen cabinets, water heaters, windows, and exterior paint, with parking on site.

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Renovated Four-Unit Quadplex

811 Oak St, San Francisco, CA 94117

$4,500,000

5,725 sqft

Updated interiors, modernized building systems, and laundry in every unit support a well-maintained residential income property.

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Well-Maintained Four-Unit Apartment

San Carlos, CA 94070

$2,120,000

0.17 AC lot

Four one-bedroom, one-bath units with enclosed patios or wood decks, plus coin-operated laundry and covered parking.

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Vacant Four-Unit Apartment Building

1414 Taraval Street, San Francisco, CA 94116

$2,300,000

3,900 sqft

Four vacant two-bedroom residences support immediate leasing or partial owner occupancy.

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Haight-Ashbury Quadruplex with In-Law Unit

905 Ashbury, San Francisco, CA 94117

Contact for pricing

4,439 sqft

Four units plus legal in-law in prime location.

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Four-Unit Apartment Building

565 Hampshire Ave, Redwood City, CA 94063

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2,431 sqft 0.11 AC lot

Four-unit apartment property with one two-bedroom unit and three one-bedroom units, recently upgraded with new copper pipes.

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San Mateo County, CA Quadplexes Market Trends and Statistics

Explore 57 quadplexes for sale in San Mateo County, CA, showcased through 57 active listings on our real estate platform. These investment opportunities span a total of 125,904 square feet of properties for sale, with an estimated market value of $88,252,888.

Sale prices for four-unit buildings in San Mateo County, CA start at $699,000, averaging $2,451,469, and reaching up to $5,689,000 — 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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