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660-662 Bay St

Russian Hill, SF 94133 0028006A 3 units · 2 fl · 1928

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 Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 660-662 Bay 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 1928
2 or more units
3 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
Units3
Floors2
Year built1928
Total area3,570 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0028006A
Ownership

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

Owner name
Ow Yut Muey & Bing Y Huey R
Mailing address
Huey Fred & Bing Jr Succ-tr 1630 41St Ave San Francisco CA 94122
Last sale
062800

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

660 Bay St, San Francisco, CA 94133
662 Bay St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-unit, two-story multi-family residential building at 660-662 Bay Street in Russian Hill, owned by Ow Yut Muey & Bing Y Huey R, has undergone several significant maintenance and renovation projects since its construction in 1928. Most recently, in October 2024, the building completed repairs to the backyard stairs serving all three stories at a cost of $5,000. In 2021, substantial interior improvements were made including bathroom remodels in multiple units, kitchen renovations, and various plumbing and electrical upgrades totaling approximately $56,000. The building has a notable history of addressing structural and safety concerns, with earlier documented issues including dry rot and stair repairs in 2004, which led to multiple building violations that were ultimately resolved by 2007.

The property has experienced several routine fire safety inspections and violations over the years, with the most recent significant fire-related issues occurring in 2019-2020, including concerns about fire extinguishers and sprinkler maintenance that were subsequently corrected. A series of fire alarm activations (primarily false alarms and system malfunctions) have been recorded, though none resulted in any civilian injuries. Recent activity at the property has primarily involved routine maintenance and street-related issues, as evidenced by multiple 311 calls in late 2024 regarding garbage, debris, and a damaged tree. While the building's recent history shows regular maintenance and prompt attention to violations, it's worth noting the cluster of fire safety concerns and alarm system issues recorded over the years, though these appear to have been addressed through proper channels.

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

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Risk rating

How 660-662 Bay 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
93th percentile

Out of 1133 buildings in this neighborhood, 79 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

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 88.9%
Moderate concern 7.7%
Severe concern 3.4%
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

660-662 Bay St event timeline

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

2026
311 Request Jun 17
Encampment
Encampment

See all 10 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 660-662 Bay St apartments

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

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