1 Helen Street, San Francisco, CA 94109, San Francisco, 94109 - 3 bed, 5 bath
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1 Helen Street
San Francisco, CA 94109
ACTIVE
CONDITION: EXCELLENT
3Beds
5Baths
2,492Sq Ft
1,271Lot Size
Property Price
LIST PRICE$4,300,000
EST. MARKET VALUE
$5,394,943
20% BelowMARKET VALUE
SUMMARY
This shovel-ready project represents a High-Potential Investment Opportunity with a List Price of $4,300,000—positioned well below the $5,394,944 Fair Market Value by 20%. This valuation gap offers $1,094,944 in Instant Equity for buyers ready to execute the approved architectural plans. Featuring a Mint Condition Rating upon completion, the residence includes a Chef's Kitchen, Panoramic Skyline Views, and Private Terraces. This is an ideal acquisition for Sophisticated Investors or Owner-Occupants seeking to customize a luxury Nob Hill residence.
Estimated Market Value
$5,394,943+$1,094,943 Equity Potential
Based on Realkey algorithm analyzing recent comparable sales in San Francisco.
Comparable Sales Map
Comparables within 1 miles sold in recently
Map unavailable.
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 1 Helen Street Subject | $4,300,000* List Price | 3 | 5 | 2,492 | $2,165 | - |
A 40 White Street Sold | $3,275,000 | 2 | 3 | 1,698 | $1,929 | 0.5 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
See Full ReportOVERALL CONDITION SCORE
Excellent
TeardownExcellent
Property is new construction or fully renovated.
This is a new construction project with a 2026 completion date. It features a modern architectural design, high-end chef's kitchen, luxury baths, and brand-new systems, representing mint condition with no maintenance required.
PROSSTRENGTHS & OPPORTUNITIES
- Prime Nob Hill Location
Situated on a private lane in one of San Francisco's most prestigious neighborhoods, offering immediate access to Huntington Park, luxury hotels, and the Financial District.
- Shovel-Ready Customization
The property includes approved architectural plans by William Pashelinsky, allowing the buyer to bypass the lengthy permitting process while still personalizing high-end finishes and design details.
- Sophisticated Modern Layout
The four-level design features rare urban amenities including an attached garage, a private garden, and multiple terraces that maximize the living space and enhance the indoor-outdoor experience.
CONSRISKS & DEFICIENCIES
- Low Available Lot Utilization
The property has a small lot size, more than 70 percent of which is taken by its living area. lot size in square feet = 1271, living area = 2492.
- Recently Sold Property
The property was recently sold within the past year on 2026-05-19. The sold price is $1,099,000.00.
- Construction Requirement
As a shovel-ready opportunity rather than a completed home, the buyer must manage the costs, timelines, and complexities of the actual building process.
About 1 Helen Street
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.
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 2026
- Lot Size
- 1,271 Sq. Ft.
Interior
- Total Bedrooms
- 3
- Total Bathrooms
- 5 (5 Full, 0 Half)
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $0 / Month
Neighborhood Insights
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 3.0 | 3.0 |
| Baths | 5.0 | 2.0 |
| Square foot | 2,492 | 1,711.807 |
| Lot Size | 1,271 | 2,637.135 |
| Price | $4.30M | $1.93M |
| Price per sq ft | $1.7K | $1.2K |
| Built year | 2026 | 1932 |
| HOA | $0 | $85 |
| Days on market | 41 | 48 |
Pricing History
Listed for Sale
Jul 30, 2026
$4,300,000
Initial Listing
Sold
May 19, 2026
$1,099,000
Public Record
Sold
Mar 3, 2023
$650,000
Public Record