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1666 Clay St

Nob Hill, SF 94109 0620012 2 units · 2 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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1666 Clay 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
2 units
Property type
Multi-Family Residential
Zoning
RM3
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 built1907
Total area3,400 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0620012
Ownership

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

Owner name
Chin Tommy T & Louise W 199
Mailing address
Tommy T Chin 501 King Dr #120 Daly City CA 94015
Last sale
000000

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 1666 Clay Street in Nob Hill, built in 1907, is owned by Tommy T & Louise W Chin 199 and contains two units. The building's only recorded major structural work was a reroofing project completed in 1991, though this permit has since expired. The property has experienced multiple street cleaning incidents over the past several years, with the most recent occurring in September 2023 involving a parking violation. Between 2019 and 2021, there were several reports (seven in total) of human or animal waste and general garbage issues in the vicinity, many of which were concentrated in early 2021. The building's parking-related issues have been relatively minor, with three documented cases of illegal parking or sidewalk parking between 2020 and 2024, including one involving a Tesla in September 2023 that authorities were unable to locate. While these incidents reflect some ongoing maintenance and enforcement challenges in the building's immediate surroundings, particularly regarding street cleanliness, there have been no documented internal building safety or habitability issues in the available records.

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

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Risk rating

How 1666 Clay 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
78th percentile

Out of 1125 buildings in this neighborhood, 248 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Neighborhood location

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

12-Month severity forecast
No violation 60.2%
Moderate concern 13.9%
Severe concern 25.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1666 Clay St apartment reviews

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The story over time

1666 Clay St event timeline

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

2024
311 Request Apr 14
Bulky items
Furniture

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1666 Clay 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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