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422 9Th Ave

Inner Richmond, SF 94118 1536047 15 units · 3 fl · 1966

This building has far more open problems than almost any other in the neighborhood. 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 Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 422 9Th Ave 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 1966
2 or more units
15 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units15
Floors3
Year built1966
Total area13,338 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1536047
Ownership

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

Owner name
Trinity G2 Holding Llc
Mailing address
1145 Market St Fl 12 San Francisco CA 94103
Last sale
110217

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 15-unit, 3-story multi-family residential building at 422 9th Avenue, owned by Trinity G2 Holding LLC and constructed in 1966, has experienced several significant maintenance and safety events over its history. Most notably, there is currently a fire alarm system upgrade in progress (2025) involving new devices and low-frequency sounders in sleeping areas, along with associated electrical work. The building has had recurring issues with its fire alarm system, with multiple violations and corrections between 2013 and 2024, suggesting ongoing challenges with fire safety equipment maintenance. Recent improvements include a domestic boiler replacement in 2019 and a substantial kitchen and bathroom renovation in unit 205 in 2015, though this renovation prompted a complaint in 2015 regarding after-hours construction noise. Historical issues from the 1990s included multiple water-related problems, with roof leaks documented in 1996-1998 and interior water damage complaints.

The building has undergone various structural and systems upgrades over the decades, including exterior framing repairs (2003), a street space permit (2003), and multiple roofing projects. A notable complaint about unauthorized construction work in 2003 was reported, and five fire escape-related violations were documented in 2002, though these were abated by July 2002. More recent maintenance activity includes three consecutive fire safety inspections between 2021 and 2024, with violations issued in 2020 and September 2024. The property has generally complied with routine inspections, including annual housing inspections, though there were significant tenant complaints about water issues and construction work in the mid-1990s. The building's current owners appear to be actively addressing fire safety concerns, as evidenced by the ongoing fire alarm system upgrade and recent boiler replacement, though the frequency of fire system-related complaints suggests this remains an area requiring attention.

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

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Risk rating

How 422 9Th Ave'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
2th percentile

Out of 1723 buildings in this neighborhood, 1689 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
26%
No DBI
violation
74%
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.

Number of units

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 21.9%
Moderate concern 72.1%
Severe concern 6.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

422 9Th Ave apartment reviews

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On the map

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The story over time

422 9Th Ave event timeline

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

2026
Fire Complaint Jun 16
Alarm Systems

See all 10 events

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

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Every record we have

Full data for 422 9Th Ave 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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