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15 Harriet St

South of Market, SF 94103 3731116 3 units · 1921

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in South of Market
At or below average
avg 3.3
0
FewerMore

This building has 0 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 15 Harriet St rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1921
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
SLR
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units3
Floors
Year built1921
Total area2,700 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3731116
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Big Three Llc
Mailing address
Nguyen Anthony H & Tokhanh 1101 Chancery Way San Ramon CA 94582
Last sale
100918

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

15 Harriet Street is a 3-unit multi-family residential building constructed in 1921, currently owned by Big Three LLC and located in San Francisco's South of Market neighborhood. The building's maintenance history includes several significant events, with the most pressing issues occurring recently in 2024-2025, including multiple fire safety concerns involving blocked exits (three separate incidents in 2024). The property has experienced recurring encampment issues in the surrounding area, with numerous reports in late 2024 and early 2025, though many were resolved through cleanup efforts. A concerning history of fire-related incidents is documented, including three fire complaints in 2020-2024 related to exit maintenance and security systems, and multiple violations between 2018-2020 concerning exits, sprinklers, and storage of combustible materials.

The building's repair history shows attention to maintenance, including a roofing project in 2009 and interior repairs in 2016 following a roof leak, though this work came in response to a complaint about unauthorized work hours. An illegal unit complaint from 1997 alleged unsafe living conditions, though there is no record of this issue persisting. Recent municipal records indicate infrastructure concerns in the vicinity, including a collapsed sidewalk reported in January 2025. While the building has undergone various repairs and maintenance work, the recurring nature of exit blockage violations and recent infrastructural issues in the immediate vicinity are noteworthy.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 15 Harriet St's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
71th percentile

Out of 430 buildings in this neighborhood, 125 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 55.1%
Moderate concern 33.7%
Severe concern 11.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

15 Harriet St event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2026
311 Request May 02
Homelessness and supportive housing
housing homeless request for service
311 RequestFeb 18
Not offensive

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 15 Harriet St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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