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20-22 Ringold St

South of Market, SF 94103 3756019 3 units · 3 fl · 1909

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 South of Market
At or below average
avg 3.3
0
FewerMore

This building has 0 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 20-22 Ringold 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 1909
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
SLR
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
Units3
Floors3
Year built1909
Total area3,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3756019
Ownership

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

Owner name
Ab San Francisco Llc
Mailing address
525 Pennsylvania Ave San Francisco CA 94107
Last sale
091019

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.

20 A Ringold St, San Francisco, CA 94103
22 Ringold St, San Francisco, CA 94103
20 Ringold St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The three-story multi-family residential building at 20-22 Ringold Street in San Francisco's South of Market neighborhood, built in 1909 and currently owned by Ab San Francisco Llc, has undergone several significant renovations over the past decade. Most notably, in 2018, the property received a $10,000 rear stair renovation with deck additions on the second and third floors, and previously in 2015-2016, it underwent substantial improvements including a kitchen and bathroom remodel (valued at $60,000), window replacements, electrical upgrades including a change from overhead to underground service, and plumbing work involving a gas wall furnace installation and water heater replacement. The building's safety and maintenance history shows attention to building systems, with completed permits for window replacements, stair renovations, and various infrastructure improvements.

The property has experienced multiple fire alarm activations, most of which were unintentional or due to system malfunctions, with one documented cooking-related incident that was contained and resulted in no injuries. Historical records from 1997 indicate a concerning incident involving rear steps, although there have been no similar complaints in recent years. A routine safety inspection in 2007 showed no active violations. Recent 311 calls from 2024 primarily concern external issues such as garbage and debris on the sidewalk, with multiple reports of human waste/urine and furniture on the property, which are currently marked as open or in progress. While the building itself appears to be well-maintained based on the permit history, the surrounding area has experienced some sanitation challenges as evidenced by recent 311 reports.

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

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Risk rating

How 20-22 Ringold 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
39th percentile

Out of 430 buildings in this neighborhood, 262 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Neighborhood (ZIP code)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 43.5%
Moderate concern 33.0%
Severe concern 23.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

20-22 Ringold St apartment reviews

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The story over time

20-22 Ringold St event timeline

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

2026
311 Request May 11
Encampment
Encampment
311 RequestMay 11
Encampment

See all 6 events

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

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Every record we have

Full data for 20-22 Ringold 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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