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3364-3366 19Th St

Inner Mission, SF 94110 3590019 2 units · 2 fl · 1910

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 Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 3364-3366 19Th 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 1910
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC3
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 built1910
Total area2,290 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3590019
Ownership

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

Owner name
Kwan, Patrick W S & Yik Lin
Mailing address
Patrick W S&yik Lin Kwan 2646 40Th Ave San Francisco CA 94116
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.

3366 19th St, San Francisco, CA 94110
3364 19th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 3364-3366 19th Street in San Francisco's Inner Mission district is a 2-story mixed-use building constructed in 1910, containing two residential units and ground-floor commercial space, owned by Patrick W S Kwan and Yik Lin. The building has undergone several significant modifications and faced various challenges over the years. Most recently, in 2024, there were multiple fire code violations issued, with at least one associated with the address 3376 19th Street regarding improper electrical extension cord use. The building's accessibility was improved in 2020 with the installation of a power door operator as part of the Accessible Business Entrance program. In 2018, a heating complaint was filed but subsequently resolved.

Historical issues include a 2007 lead paint violation regarding peeling paint that presented potential health hazards, which was abated within approximately one month. The property has also experienced several fire safety concerns over the years, including overcrowding in places of assembly (2017 and 2021), blocked exits (2014), and operating without proper permits (multiple instances, with the most recent in 2024). Since late 2024, there have been multiple reports of graffiti on and around the property, though many of these have been resolved. The building's relationship with the San Francisco Fire Department has been closely monitored, with some violations being rescinded or marked as having "No Merit." The most recent record indicates a permit violation regarding the use of electrical extension cords that was closed, suggesting attention to safety compliance is ongoing.

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

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Risk rating

How 3364-3366 19Th 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
82th percentile

Out of 2380 buildings in this neighborhood, 428 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood (ZIP code)

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

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 78.3%
Moderate concern 17.4%
Severe concern 4.3%
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

3364-3366 19Th St event timeline

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

2026
311 Request Jun 17
Building inspection
building inspection request for service
311 RequestJun 06
Other including abandoned toter

See all 6 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3364-3366 19Th St apartments

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

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