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123 Henry St

Duboce Triangle, SF 94114 3540051 2 units · 2 fl · 1925

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Duboce Triangle
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Duboce Triangle average of 2.3.

Rent & eviction protection

Is 123 Henry 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 1925
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units2
Floors2
Year built1925
Total area2,184 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3540051
Ownership

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

Owner name
Dea Harmon
Mailing address
123 Henry St San Francisco CA 94114
Last sale
042898

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 123 Henry Street in the Duboce Triangle, owned by Dea Harmon, is a two-story flats and duplex structure built in 1925. The most recent significant concern involves potential safety hazards from loose roof shingles, reported to the Building Inspection Division in August 2023, though this issue was marked as abated within nine days of reporting. The building has experienced recurring sewer-related problems, with four documented incidents between 2020 and 2022 involving 4-inch vent sewage backups, suggesting potential infrastructure challenges in this area. While not directly related to the building's condition, there have been several neighborhood maintenance issues recorded through 311 calls, including street cleaning concerns (both mechanical sweeping missed routes and loose garbage), human or animal waste on public property, and graffiti on a sign between 2018 and 2021.

The building's documented issues have primarily revolved around plumbing infrastructure and external environmental factors rather than structural integrity or safety concerns, with the most pressing recent issue being the roof shingle safety concern. The property has not had any major structural violations or safety infractions recorded in the provided history, and most issues have been addressed within reasonable timeframes according to available data.

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

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Risk rating

How 123 Henry 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
25th percentile

Out of 287 buildings in this neighborhood, 215 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
53%
No DBI
violation
47%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Neighborhood location

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast
No violation 40.3%
Moderate concern 41.9%
Severe concern 17.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

123 Henry St event timeline

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

2023
DBI Complaint Aug 15
Roof shingle looks like it will fall on sidewalk and hurt someone. (311 sr 17157110)
Building Inspection Division

See all 1 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 123 Henry 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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