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1121 Clay St

Nob Hill, SF 94108 0222043 6 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 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 1121 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
6 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
Units6
Floors3
Year built1907
Total area5,670 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0222043
Ownership

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

Owner name
Lum Craig K & Rochelle P
Mailing address
1121 Clay St San Francisco CA 94108
Last sale
040717

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located in San Francisco's Nob Hill neighborhood, 1121 Clay Street is a three-story, six-unit multi-family residential building constructed in 1907, currently owned by Craig K. Lum and Rochelle P. Lum. The building has undergone several significant upgrades in recent years, most notably a comprehensive fire alarm system upgrade in 2020 costing $24,000 to meet the 2021 mandate, and the replacement of 11 window sashes on the front facade in 2019 with Marvin Ultimate aluminum-clad wood sashes. The property has received regular maintenance and improvements to individual units, including kitchen and bathroom remodels in Unit 3 (2019) and units 5 & 6 (2014), installation of new high-efficiency furnaces (2014), and electrical rewiring in various units. Recent plumbing upgrades include a new boiler installation and related work in 2022.

The building's safety systems have required periodic attention, with the most recent fire complaint filed in December 2023 regarding sleeping area requirements, though the specific violation status remains open. Historical fire safety issues have included problems with fire extinguishers in 2022 (corrected), and alarm system concerns in 2011 and 2012 (both corrected). The property has maintained compliance with housing inspections, with routine inspections conducted in 2001, 2009, and 2016 showing no active violations. While there have been numerous parking-related complaints in the vicinity of the building in late 2024, these are street-related issues and not directly connected to the building's management or maintenance. The current owners have demonstrated ongoing investment in the property's maintenance and upgrading systems, particularly focusing on compliance with modern safety standards and improving resident comfort through various unit renovations.

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

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Risk rating

How 1121 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
87th percentile

Out of 1125 buildings in this neighborhood, 146 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Building permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month severity forecast
No violation 52.4%
Moderate concern 31.8%
Severe concern 15.7%
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

1121 Clay St event timeline

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

2025
311 Request Aug 15
Abandoned vehicle
Parking Enforcement

See all 12 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1121 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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