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142 Hamilton St

Portola, SF 94134 5931005 2 units · 2 fl · 1908

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 Portola
Above average
avg 1.8
5
FewerMore

This building has 5 novs (7y), above the Portola average of 1.8.

Rent & eviction protection

Is 142 Hamilton 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 1908
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1908
Total area2,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5931005
Ownership

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

Owner name
Truong Thanh
Mailing address
561 Atherton Ave Novato CA 94945
Last sale
041702

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 142 Hamilton Street in Portola, owned by Truong Thanh, has experienced several maintenance and safety issues since its construction in 1908. The most recent significant concerns occurred in January 2025, involving a sewage backup from the side sewer vent, along with multiple reports of garbage and debris that were subsequently resolved. The property has a history of sanitation and building maintenance violations, particularly in 2018, when multiple complaints were filed regarding rubbish removal, stair repairs, lead paint concerns, and weatherproofing issues, with most of these violations being abated by September 2019. Earlier issues from the 1990s included concerns about backyard debris and waste, though these were resolved by March 1999.

The building's maintenance history shows attention to basic upkeep, as evidenced by a completed reroofing project in 1991. Safety-related complaints have been documented through the years, with fire complaints in 2018 (weeds and grass), 2013 (hazardous materials), and 2011 (blocked exits) all being corrected upon inspection. Recent 311 calls from late 2024 to early 2025 indicate ongoing issues with garbage and debris management in the vicinity, though most cases have been resolved. The property has experienced recurring concerns with exterior maintenance and sanitation, as evidenced by multiple reports spanning decades, from garbage accumulation to paint deterioration and weatherproofing concerns. While many violations have been addressed through official channels, the frequency and variety of historical complaints suggest a pattern of maintenance challenges requiring regular oversight.

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

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Risk rating

How 142 Hamilton 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
91th percentile

Out of 255 buildings in this neighborhood, 23 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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 location

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

Neighborhood location

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 81.6%
Moderate concern 13.3%
Severe concern 5.1%
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

142 Hamilton St event timeline

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

2023
311 Request Dec 27
Sewage back up
Outofsewervent4inch

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 142 Hamilton 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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