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1123 Clay St

Nob Hill, SF 94108 0222042 8 units · 3 fl · 1921

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
Above average
avg 2.4
7
FewerMore

This building has 7 novs (7y), above the Nob Hill average of 2.4.

Rent & eviction protection

Is 1123 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 1921
2 or more units
8 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
Units8
Floors3
Year built1921
Total area5,076 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0222042
Ownership

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

Owner name
Lee Chester Yam & Wendy
Mailing address
1631 31st Ave San Francisco CA 94122
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 8-unit multi-family residential building at 1123 Clay Street in Nob Hill, owned by Lee Chester Yam & Wendy, was constructed in 1921 and is classified as a 3-story apartment building with 5 to 14 units. The building has experienced several significant safety and maintenance issues, particularly related to fire safety systems and egress. Between 2000 and 2016, there were multiple fire safety violations documented, including problems with the fire escape system, alarm panel certification, fire extinguisher maintenance, and combustible storage concerns. While many of these violations were eventually abated, they indicate recurring fire safety issues over this time period.

In 2018, there was a fire extinguisher-related complaint that was promptly resolved, and the building's most recent documented fire incident was an alarm malfunction with no civilian injuries. The building underwent reroofing work in 2003 (permit expired) and had a street space permit issued in 2006, though these permits had limited impact on resident safety. Three separate routine inspections (2000, 2009, and 2016) were conducted, with various issues noted and resolved. More recent history includes a 2024 report of a damaged side sewer vent cover and two 2020 incidents involving hazardous materials and an encampment, though these were not directly related to the building's condition. The building has experienced recurring issues with blocked exits, particularly notable in 2011-2012, when multiple complaints were filed with the fire department regarding this safety concern. A significant complaint was filed in 2010 regarding unauthorized work being performed in two units, involving plumbing and electrical modifications without proper permits.

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

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Risk rating

How 1123 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
44th percentile

Out of 1125 buildings in this neighborhood, 630 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Building age

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 40.9%
Moderate concern 30.7%
Severe concern 28.4%
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

1123 Clay St event timeline

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

2025
311 Request Aug 27
Parking on sidewalk
Parking Enforcement
311 RequestAug 18
Parking on sidewalk

See all 3 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1123 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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