Free SF apartment background check

440 9Th Ave

Inner Richmond, SF 94118 1536046 12 units · 3 fl · 1959

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 Inner Richmond
Above average
avg 0.9
9
FewerMore

This building has 9 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 440 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 1959
2 or more units
12 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
Units12
Floors3
Year built1959
Total area11,670 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1536046
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
110317

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit, three-story multi-family residential building at 440 9th Avenue is a 1959 construction currently owned by Trinity G2 Holding LLC. The building has experienced several maintenance and safety issues over the past two years, with the most recent complaints focusing on ventilation problems, a malfunctioning skylight, and carpeting issues in common areas. Recent complaints from late 2024 indicate ongoing concerns with mold/mildew, kitchen maintenance problems, and general maintenance issues. The building has a history of violations from 2004 that were resolved in early 2005, including issues related to interior surfaces, plumbing, electrical systems, and fire safety concerns such as fire escape maintenance and fire extinguisher requirements. More recent fire safety complaints in 2022 regarding sprinkler systems and exit maintenance were corrected.

The property has undergone some maintenance work, including a completed skylight replacement and window retrofitting project in 2024. Historical records show significant maintenance issues from 2004-2005, including water damage, lead paint concerns, and various interior surface problems. The building's infrastructure has witnessed several routine inspections over the years, with documented issues regarding sound insulation between units in 2022 and ventilation problems in 2024. A sewer backup incident was reported and resolved in 2023, and there have been two instances of mold/mildew complaints in 2024. While some maintenance issues have been addressed, the recent pattern of complaints suggests ongoing building maintenance challenges, particularly regarding ventilation, water damage, and sound insulation between units.

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

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Risk rating

How 440 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
5th percentile

Out of 1723 buildings in this neighborhood, 1637 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
38%
No DBI
violation
62%
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.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 23.1%
Moderate concern 65.4%
Severe concern 11.5%
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

440 9Th Ave event timeline

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

2025
DBI Complaint Sep 17
Mold in closet and on clothes
Housing Inspection Services
Fire ComplaintSep 08
Exit Maintenance

See all 17 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 440 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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