Located just half a block from vibrant Polk Street, this well-maintained duplex offers a rare opportunity in one of San Francisco's most desirable neighborhoods. Both units are set to convert to individual condominiums at close of escrow, providing flexibility for homeowners and investors alike. The upper residence is a spacious two-level, 3-bedroom, 2-bathroom unit with a great natural flow between living spaces. The living room features a wood-burning fireplace and expansive city views. The penthouse-level primary suite includes an en-suite bathroom and a generous walk-in closet, offering privacy and comfort. From this upper level, enjoy a subtle yet striking view of the Golden Gate Bridge an elegant reminder of the city's iconic landscape. The lower unit is a private 2-bedroom, 1-bathroom home with charming outlooks over the beautifully landscaped yard. Each unit includes dedicated parking, and the garage offers additional space with potential for development into expanded living or work areas. At the rear of the property, a deep backyard with mature trees and a deck provides a peaceful outdoor retreat rarely found in this part of the city. This is a unique opportunity to own and shape a property in a prime location, steps from shops, dining, and neighborhood charm.
Sold for $3,550,000 on 10/01/25
$3,550,000
1358 Union St #1360, San Francisco, CA 94109
5beds
0baths
3,333sqft
Duplex
Built in 1947
-- sqft lot
$3,588,200 Zestimate®
$1,065/sqft
$5,943 Estimated rent
Owner options
What's special
Zillow last checked: 8 hours ago
Listing updated: October 01, 2025 at 11:56am
Listed by:
Joe Moore, Jr. DRE #02033554 415-613-1429,
Sotheby's International Realty 415-901-1700,
Joseph Gartland Moore DRE #00987189 415-309-5908,
Sotheby's International Realty
Bought with:
Katie Sullivan, DRE #02144636
Sotheby's International Realty
Source: SFAR,MLS#: 425070363
Originating MLS: San Francisco Association of REALTORS
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 0
Interior area
- Total structure area: 3,333
- Total interior livable area: 3,333 sqft
Property
Parking
- Total spaces: 2
- Parking features: Tandem
- Garage spaces: 2
Features
- Levels: Four
- Has view: Yes
- View description: Bay, Bridge(s), City, City Lights, Golden Gate Bridge, Hills, Mt Tamalpais, San Francisco
- Has water view: Yes
- Water view: Bay
Lot
- Size: 2,500 sqft
- Features: Curbs/Gutters, Landscaped, Shape Regular, Sidewalk, Zero Lot Line
Details
- Parcel number: 0525013
- Special conditions: Standard
Construction
Type & style
- Home type: MultiFamily
- Property subtype: Duplex
Condition
- Year built: 1947
Community & neighborhood
Location
- Region: San Francisco
HOA & financial
HOA
- Has HOA: No
Other financial information
- Total actual rent: 0
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Estimated market value
$3,588,200