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667-671 Commercial St

Financial District North, SF 94111 0227026 7 units · 3 fl · 1907

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 Financial District North
At or below average
avg 3.2
0
FewerMore

This building has 0 novs (7y), at or below the Financial District North average of 3.2.

Rent & eviction protection

Is 667-671 Commercial 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 1907
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
CCB
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
Units7
Floors3
Year built1907
Total area—
Property typeMulti-Family Residential
Tax statusNone
Blocklot0227026
Ownership

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

Owner name
Tang Jim Chun Yin
Mailing address
128 Morton Dr Daly City CA 94015
Last sale
000000

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.

667 Commercial St, San Francisco, CA 94111
671 Commercial St, San Francisco, CA 94111
Augrented Insights
Initial analysis

The 7-unit, 3-story multi-family residential building at 667-671 Commercial Street, owned by Jim Chun Yin Tang and constructed in 1907, has undergone several significant improvements and faced multiple safety challenges in recent years. Most notably, in 2023, there were multiple fire code violations recorded, including issues with alarm systems, sprinkler systems, and sleeping area requirements, with several violations remaining open as of late 2024. The building has a documented history of fire safety concerns, with routine inspections in 2016 revealing issues with fire escape drop ladders, fire extinguishers, and smoke alarm systems. During 2014-2016, substantial improvements were made to the building's fire safety systems, including the installation of UL300 fire systems, replacement of fire sprinklers, and various fire safety equipment upgrades totaling over $25,000.

The property has maintained an active presence in the local regulatory landscape, with recent administrative changes in 2023 allowing for a change of use under specific planning conditions. The building underwent significant commercial improvements in 2014, including restaurant renovations with new ADA-compliant facilities and the installation of cooking equipment. Historical records show that the building received seismic retrofitting in 1996, addressing earthquake hazard reduction concerns, and underwent reroofing in 1997. Recent 311 calls from January 2025 indicate ongoing issues with garbage overflow, noise, and mobility device blocking on nearby sidewalks, though these are more related to the street context than the building's internal conditions.

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

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Risk rating

How 667-671 Commercial 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
60th percentile

Out of 145 buildings in this neighborhood, 58 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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Construction type (C)

The building's construction type on file, which affects its maintenance risk profile.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 52.5%
Moderate concern 30.7%
Severe concern 16.7%
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

667-671 Commercial St event timeline

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

2026
311 Request Jun 03
Garbage and debris
other loose garbage debris yard waste
311 RequestApr 12
Garbage and debris

See all 8 events

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

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Every record we have

Full data for 667-671 Commercial St apartments

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

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