42 Sumner Street

Off Market

42 Sumner Street

San Francisco CA 94103

2300 sq. ft.

1450.55 sq. ft.

Duplex

Last sold for $1,030,000

Scott Rose, last sold this property on 23 September 2026 after 110 days on market.

Overview

A rare investment opportunity or the perfect owner-occupant property in the heart of SoMa. Live in one unit and collect rental income from the other while enjoying the character and charm of a bygone San Francisco era. Built during SoMa's Edwardian period, long before much of the surrounding neighborhood took shape, this well-maintained two-unit building sits on an exceptionally quiet side street while remaining close to everything the city has to offer. Rich with original character and period details, the property seamlessly blends historic charm with modern upgrades. The lower unit features a beautifully remodeled two-bedroom, two-bath floor plan, along with a large bonus room that could easily serve as a third bedroom, home office, or guest space. The spacious chef's kitchen is equipped with stainless steel appliances, abundant cabinetry, stone countertops, and a classic subway tile backsplash. Sunlight pours into the front living room and front bedroom during the morning hours, while the rear bedrooms enjoy warm afternoon light. Start your day with coffee on the private rear deck overlooking the yard. And yes, there is ACTUALLY a backyard in SoMa. The expansive outdoor space offers a rare urban retreat with endless possibilities for gardening, entertaining, or simply relaxing outdoors. The upper unit is a spacious two-bedroom apartment that is currently tenant occupied, providing immediate rental income. Both units feature in-unit laundry, and the property includes a massive basement storage area. Commuters will appreciate the property's unbeatable location, with convenient access to 101 and 80 freeways, multiple Muni lines, and Civic Center BART. Daily errands are a breeze with Costco, Trader Joe's, Victoria Manalo Draves Park, restaurants, cafes, and neighborhood amenities all within walking distance. Experience the perfect blend of historic San Francisco character, income potential, outdoor space, and urban convenience. This is SoMa living at its finest.

Features

4 bedrooms

3 bathrooms

2300 sq. ft. floor area

1450.55 sq. ft. lot size

Duplex

Estimated Value

We need at least 3 similar 4 bedroom duplexes sold in San Francisco over the last 12 months.

Property history for 42 Sumner Street

2026

Sold

$1,030,000

23 Sep 2026 by Scott Rose, of Corcoran Icon Properties

2019

Sold

$1,405,000

24 Apr 2019 by Tim Brown, of Keller Williams San Francisco

2014

Sold

$862,500

05 Sep 2014 by Julie Peisner, of Paragon Real Estate Group

Happy sellers in San Francisco

100%

100% of sellers in San Francisco reported that their sale price either exceeded or met their price expectations.

San Francisco stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 3 reviews in San Francisco over the last 12 months.

Local market activity for 4 bedroom duplexes in San Francisco

In the last 12 months, 2 four-bedroom duplexes similar to 42 Sumner Street, have been sold.

This represents a 50% decrease in four-bedroom duplexes sales when compared to the previous 12 months.

Sold

For Sale

Interested in selling?

People are reaching out to these agents in San Francisco for a market analysis.

Christian Buckley

at Vanguard Properties

(44 reviews)

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Andrea Horta

at Berkshire Hathaway HomeServices Drysdale Properties (San Francisco, 94115)

(46 reviews)

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James White

(9 reviews)

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Robert Gibson

at Vanguard Properties

(10 reviews)

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Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in San Francisco

Christian Buckley

Sellers who recommend Christian Buckley have praised them for being local expert, clear communication, honest, reliable, supportive, and patient

5 (44 reviews)
1 Review in San Francisco
2 Sales in San Francisco

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Andrea Horta

Sellers who recommend Andrea Horta have praised them for being local expert, supportive, clear communication, friendly, responsive, dedicated, and empathetic