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3573 20Th St

Inner Mission, SF 94110 3609045 6 units · 2 fl · 1904

This building has significantly more problems than most nearby buildings. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
16
FewerMore

This building has 16 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 3573 20Th 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 1904
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
NC1
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
Floors2
Year built1904
Total area3,852 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3609045
Ownership

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

Owner name
Sun Jim Lee Bypass Trust
Mailing address
Sun Jim & Kam Ngor Lau Lee, 192 2Nd Ave San Francisco CA 94118
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 2-story, 6-unit multi-family residential building at 3573 20th Street in the Inner Mission, owned by Sun Jim Lee Bypass Trust, has undergone several significant events since its construction in 1904. Most recently, in early 2024, there were concerns regarding heater installation with reports of hazardous copper tubing and pest issues, which were addressed by housing inspection services. The building had a notable cluster of violations in December 2022 related to fire safety and maintenance, including egress obstructions, combustible storage, fire safety equipment requirements, and structural maintenance issues, though these were all marked as abated by July 2023. Historical records show routine inspections in 2000, 2008, and 2016, with the most serious fire-related violation being an egress obstruction issue in 2016 that was resolved within a month.

The property was the subject of various building permits, including street space and sidewalk permits in 2006 and 2009, though a reroofing permit from 1994 is now expired. Recent months have seen multiple reports of garbage and debris issues in the vicinity, with several cases being resolved through municipal services between October and December 2024, though these external matters are not directly related to the building's internal conditions. The building's maintenance history shows a pattern of addressing violations and routine inspections, with particular attention needed to fire safety concerns as evidenced by multiple egress obstruction issues and related fire safety equipment requirements. All known violations were marked as "Not Active" by their respective abatement dates, suggesting that while there have been multiple issues requiring attention, the property management has generally responded to regulatory requirements when violations are documented.

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

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Risk rating

How 3573 20Th 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
12th percentile

Out of 2380 buildings in this neighborhood, 2094 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
28%
No DBI
violation
72%
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.

DBI tenant complaints (past 7 years)

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

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 14.3%
Moderate concern 44.3%
Severe concern 41.4%
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

3573 20Th St event timeline

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

2026
311 Request Jun 15
Garbage and debris
human waste or urine
311 RequestJun 14
Garbage and debris

See all 13 events

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

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Every record we have

Full data for 3573 20Th St apartments

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

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