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1925-1931 Larkin St

Nob Hill, SF 94109 0573002 4 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 1925-1931 Larkin 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
4 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
Units4
Floors2
Year built1907
Total area4,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0573002
Ownership

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

Owner name
Thomas Ong & Betty Ong Szet
Mailing address
Szeto Mgmts Services 465 Buena Vista Ave #207 Alameda CA 94501
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.

1929 Larkin St, San Francisco, CA 94109
1925 Larkin St, San Francisco, CA 94109
1927 Larkin St, San Francisco, CA 94109
1931 Larkin St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The property at 1925-1931 Larkin Street is a two-story, four-unit multi-family residential building located in Nob Hill, built in 1907 and currently owned by Thomas Ong & Betty Ong Szet. The building has undergone several notable improvements over the years, including a kitchen remodel completed in 1996 and seismic safety enhancements in 1990 with the installation of stud anchor bolts to the mudsills. In the early 1990s, there was an attempt to complete a lateral upgrade, though the initial permit expired and required multiple renewals before finally being addressed.

The building has experienced several maintenance and safety incidents, most concerning being a complaint filed in 2014 regarding unauthorized construction work, including deck construction and plumbing issues. While routine housing inspections were conducted in 1999 and 2003 with no reported problems, more recent activity around the property has primarily involved external issues, particularly in late 2024, with multiple reports of garbage, debris, and park-related concerns in the vicinity. These recent incidents, recorded between November 2024 and January 2025, though not directly related to the building's structure or safety systems, suggest ongoing challenges with property maintenance and waste management in the immediate area.

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

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Risk rating

How 1925-1931 Larkin 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
85th percentile

Out of 1125 buildings in this neighborhood, 169 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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.

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.

12-Month severity forecast
No violation 65.7%
Moderate concern 12.8%
Severe concern 21.5%
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

1925-1931 Larkin St event timeline

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

2025
Building Permit Jul 08
Interior renovation to all bedrooms, bathrooms, dining, living and kitchen rooms. apply (n) cabinets, appliances and plumbing fixtures throughout the residence. update lighting and electrical throughout the residence.
$150,000 · Issued
Planning ProjectMay 30
Interior Renovation To All Bed Rooms, Bath Rooms, Dining Room, Living Room & Kitchen. Apply New Cabinetry, Appliances & Plumbing Fixtures Throughout The Residence. Update Lighting & Electrical Throughout The Residence.

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1925-1931 Larkin 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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