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4100-4102 19Th St

Eureka Valley/Dolores Heights, SF 94114 2695016 7 units · 3 fl · 1885

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
Above average
avg 1.3
2
FewerMore

This building has 2 novs (7y), above the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 4100-4102 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 1885
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
CASTRO
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
Units7
Floors3
Year built1885
Total area6,540 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2695016
Ownership

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

Owner name
Jean W Seto Living Trust
Mailing address
May Seto 580 Grand Ave Ste 305 Oakland CA 94610
Last sale
091312

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.

590 A Castro St, San Francisco, CA 94114
4100 19th St, San Francisco, CA 94114
590 Castro St, San Francisco, CA 94114
592 Castro St, San Francisco, CA 94114
4102 19th St, San Francisco, CA 94114
598 Castro St, San Francisco, CA 94114
592 A Castro St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The 4100-4102 19th Street property is a three-story, multi-family residential building with commercial space, constructed in 1885 and currently managed by the Jean W Seto Living Trust. The building contains 7 units and has undergone several significant renovations, most notably in 2010 when comprehensive updates were made to all four residential units, including electrical systems, plumbing, and the installation of a fire sprinkler system (though this permit eventually expired). In 2019-2024, the building has regularly hosted temporary T-Mobile equipment installations on the roof to provide additional network coverage during events like the Pride Parade, with the most recent installation planned for mid-2024.

The property has experienced some concerning issues in recent years, particularly regarding structural and safety matters. In July 2023, complaints were filed about sinking floors, electrical noise, and non-functional doors leading to the basement, though these problems were ultimately abated. Previous violations from 2004 included various safety concerns such as inadequate fire extinguishers and egress obstructions, which were resolved by September 2013. A notable incident occurred in 2018 when a broken sprinkler head caused flooding and water damage to multiple floors. The building underwent significant modifications in 2013 when the street-level barber shop expanded into adjacent retail space, and there were plans to legally convert existing office space into dwelling units, though these plans faced challenges regarding parking and open space requirements. Recent maintenance history includes concrete slab replacement and stair tread repairs completed in 2024 to address a 2023 notice of violation. The property has also experienced recurring issues with garbage management, as evidenced by multiple 311 calls regarding garbage and debris between January 2025 and multiple complaints about vacant commercial storefronts in 2022 and 2023.

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

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Risk rating

How 4100-4102 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
9th percentile

Out of 1278 buildings in this neighborhood, 1163 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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.

Building size

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

12-Month severity forecast
No violation 25.7%
Moderate concern 61.8%
Severe concern 12.4%
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

4100-4102 19Th St event timeline

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

2026
311 Request Jun 18
Garbage and debris
city garbage can overflowing
311 RequestJun 18
Garbage and debris

See all 21 events

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

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Every record we have

Full data for 4100-4102 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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