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3572-3576 20Th St

Inner Mission, SF 94110 3596082 5 units · 3 fl · 1911

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Mission — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.7.

Rent & eviction protection

Is 3572-3576 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 1911
2 or more units
5 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1911
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units5
Floors3
Year built1911
Total area6,874 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3596082
Ownership

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

Mailing address
Henry Mah 546 8Th Ave San Francisco CA 94118
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

3572 20th St, San Francisco, CA 94110
3576 20th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story, five-unit apartment building at 3572-3576 20th Street in San Francisco's Inner Mission district, owned by Mah Henry & Nancy Trust The, was constructed in 1911 and has undergone several significant changes over its lifetime. Building improvements include a complete reroofing project in 2006 ($8,500), the addition of bathrooms on the second and third floors in 1990, and the installation of fire sprinklers in the basement that same year. The building experienced a series of violations in 2009 related to various maintenance issues, including problems with smoke detectors, interior surfaces, plumbing, and security features, though these were all abated by January 2020. More recent concerns were raised in 2018-2019 regarding a vacant commercial storefront, which resulted in notices of violation that were ultimately resolved.

The most recent event of note was a complaint filed in March 2020 regarding potentially unpermitted and hazardous construction work, including excavation of the sidewalk concrete floor and possible plumbing and structural work, though this complaint is currently listed as not active. The building has also had multiple street cleaning and graffiti-related issues in the vicinity, with several 311 calls in late 2024 regarding debris, including reports of abandoned mattresses and general garbage. Recent street space permits were issued in 2015, and planning records show an approved project for a small self-service restaurant (ice cream shop) at the location, as well as the installation of wireless equipment for T-Mobile on an existing utility pole. The building's maintenance history shows regular attention to infrastructure needs, though the 2009 violations suggest there was a period requiring increased oversight of basic building systems and safety features.

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

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Risk rating

How 3572-3576 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
40thpercentile

Out of 2380 buildings in this neighborhood, 1428 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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

DBI tenant complaints (past 7 years)

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

12-Month risk forecast
Moderate failure risk 41%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

3572-3576 20Th St apartment reviews

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On the map

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The story over time

3572-3576 20Th St event timeline

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

2026
311 Request Jul 23
Garbage and debris
other loose garbage debris yard waste
311 RequestJul 16
Municipal transportation agency

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 3572-3576 20Th St apartments

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

Side by side

How 3572-3576 20Th St compares to the neighborhood

This building against comparable properties in Inner Mission. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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