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$4,300,000
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Property Description
Skip the years-long renovation and move into your custom home as soon as Spring 2027! Introducing One Helen, a rare opportunity to own a custom-quality luxury residence in the heart of Nob Hill. Located on one of San Francisco's most charming and private lanes, this shovel-ready opportunity offers the best of both worlds: an approved architectural vision with construction ready to begin, while allowing the future owner to personalize select finishes, subject to the stage of construction. Designed by acclaimed architect William Pashelinsky, this contemporary four-level home is planned for approximately 2,492 square feet with 3 bedrooms, 3 full bathrooms, 2 half bathrooms, an attached garage, and exceptional indoor-outdoor living. The thoughtful design emphasizes natural light, privacy, and effortless entertaining, featuring a chef's kitchen, luxurious primary suite, flexible fitness/media space, private garden, and expansive terraces. Just moments from world-class dining, boutique shopping, Huntington Park, the Fairmont Hotel, cable cars, and the Financial District, One Helen offers a rare opportunity to create a personalized luxury home in one of San Francisco's most iconic neighborhoods.
Full Property Details
Full Property Details for 1 Helen St
General
- Price: $4,300,000
- Status: Active
- Type: Single Family
- Source: RE_Infolink
- MLS ID: ML82055931
- Updated: 8/6/2026
- Added to Site: 53 day(s) ago
Interior
- Fireplace(s): Living Room
Rooms
Bathrooms
- Total Bathrooms: 5
- Full Bathrooms: 3
- Half Bathrooms: 2
Bedrooms
- Total Bedrooms: 3
Other Rooms
- Family Room: No Family Room
Additional Information
- Extras: Not Applicable
Parking
- Garage Spaces: 1
- Parking Features: Attached Garage
Location
- Area: 8 - Downtown
- County: San Francisco
- Cross Streets: California Street
Heating & Cooling
- Cooling Type: Other
- Heating Type: Heat Pump
Utilities
- Sewer: Public Sewer
- Water: Individual Water Meter, Public
- Utility Description: Individual Electric Meters, Public Utilities
Structural Information
- Construction Status: To Be Built/New
- Construction: Detached
- Foundation: Other
- Roof: Flat / Low Pitch
- Square Feet: 2,492
- Year Built: 2026
Lot Features
- Minimum Lot Size: 1271
- Lot Size (Sq. Ft.): 1,271
- Zoning: RM3
Listed by Compass, Raeanna Reudy
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Schools
Schools serving 1 Helen St
School District:San Francisco Unified School District
| Name | Grades | Distance |
|---|---|---|
Redding Elementary School 1421 Pine Street, San Francisco, CA 94109 | K-5 | 0.2 mi |
Marina Middle School 3500 Fillmore Street, San Francisco, CA 94123 | 6-8 | 1.3 mi |
S.F. International High School 655 De Haro Street, San Francisco, CA 94107 | 9-12 | 2.2 mi |
Galileo High School 1150 Francisco Street, San Francisco, CA 94109 | 9-12 | 1 mi |
Wallenberg (Raoul) Traditional High School 40 Vega Street, San Francisco, CA 94115 | 9-12 | 1.8 mi |
Mission High School 3750 18th Street, San Francisco, CA 94114 | 9-12 | 2.1 mi |
O'connell (John) High School 2355 Folsom Street, San Francisco, CA 94110 | 9-12 | 2.2 mi |
Academy (The)- SF @Mcateer 555 Portola Drive, San Francisco, CA 94131 | 9-12 | 3.6 mi |
Asawa (Ruth) San Francisco School Of The Arts, A Public School. 555 Portola Drive, San Francisco, CA 94131 | 9-12 | 3.6 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 1 Helen St
Date
Details
Price
Change
Source
7/29/2026
Listed
$4,300,000
291.26%
MLS
5/19/2026
Sold
$1,099,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 1 Helen St
Year
Property Taxes
Change
Tax Assessment
Change
2025
$6,001
—
$689,787
57%
2025
$6,001
3%
$439,094
2%
2024
$5,832
2%
$430,485
2%
2023
$5,736
2%
$422,045
2%
2022
$5,614
2%
$413,770
2%
2021
$5,511
-1%
$405,657
1%
2020
$5,552
3%
$401,498
2%
2019
$5,366
3%
$393,626
2%
2018
$5,187
7%
$385,908
2%
2017
$4,827
2%
$378,342
2%
2016
$4,726
1%
$370,924
2%
2015
$4,666
3%
$365,353
2%
2014
$4,544
-1%
$358,197
—
2013
$4,569
—
$356,579
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 1 Helen St
1 Helen St, San Francisco, CA 94109 (MLS# ML82055931) is a Single Family property with 3 bedrooms, 3 full bathrooms and 2 partial bathrooms. 1 Helen St is currently listed for $4,300,000 and was received on July 29, 2026. Want to learn more about 1 Helen St? Do you have questions about finding other Single Family real estate for sale in Downtown? You can browse all Downtown real estate or contact a Coldwell Banker agent to request more information.

