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$4,300,000 Just Listed
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Property Description
Introducing One Helen, a rare opportunity to create a custom-quality luxury residence in the heart of Nob Hill. Positioned on one of San Franciscos 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 and design details. Designed by acclaimed architect William Pashelinsky, this four-level residence is envisioned as a sophisticated contemporary home offering approximately 2,492 square feet of living space, with 3 bedrooms, 3 full bathrooms, 2 half bathrooms, an attached garage, and multiple indoor-outdoor living spaces. The thoughtful design emphasizes natural light, privacy, and effortless entertaining, featuring a refined chefs kitchen, luxurious primary suite, flexible fitness/media space, private garden, and expansive terraces. One Helen combines the confidence of a fully realized architectural plan with the opportunity to create a home tailored to your vision. Moments from world-class dining, boutique shopping, Huntington Park, the Fairmont Hotel, cable cars, and the Financial District, this exceptional residence offers a rare opportunity in one of San Franciscos 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: 7/29/2026
- Added to Site: Today
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
Get Pre-Approved Today
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
—
MLS
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
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.

