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84 Williams Ave

Bayview, SF 94124 5409017 2 units · 2 fl · 1972

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 Bayview
At or below average
avg 4.5
0
FewerMore

This building has 0 novs (7y), at or below the Bayview average of 4.5.

Rent & eviction protection

Is 84 Williams Ave 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 1972
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 built1972
Total area2,829 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot5409017
Ownership

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

Owner name
Lin Dong Xuan & Li Ruo Zhen
Mailing address
84-86 Williams Ave San Francisco CA 94124
Last sale
070902

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story multi-family residential building at 84 Williams Avenue, owned by Lin Dong Xuan & Li Ruo Zhen, was constructed in 1972 as a flats and duplex structure containing two units. The building's maintenance history shows several significant interventions, including termite damage repairs in 2005 costing $8,500, and older records from 1997 and 1995 for window installations and reroofing respectively, though those permits are now expired.

The property has experienced notable urban challenges recently, particularly in late 2024 and early 2025, with a concerning pattern of garbage and debris incidents. There were multiple reports (seven in total) of various types of waste, including human waste and urine, requiring intervention by either Recology or Public Works Street and Environmental Services, many of which occurred in December 2024. The building has also been the subject of several parking enforcement calls, with three illegal parking complaints between December 2024 and January 2025, though in all cases, officers were unable to locate the offending vehicles. A fire alarm system was unintentionally activated at some point, though no fire or injuries were involved. These service calls, particularly the recurring sanitation issues, suggest a challenging immediate environment around the property, though specific causes or responsibilities for these incidents are not documented in the available records.

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

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Risk rating

How 84 Williams Ave'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
81th percentile

Out of 382 buildings in this neighborhood, 73 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
65%
No DBI
violation
35%
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 64.0%
Moderate concern 28.1%
Severe concern 7.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

84 Williams Ave apartment reviews

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The story over time

84 Williams Ave event timeline

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

2025
311 Request Aug 21
311 service request
Encampment
311 RequestAug 16
Other illegal parking

See all 2 events

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

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Every record we have

Full data for 84 Williams Ave 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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