Free SF apartment background check

430 9Th Ave

Inner Richmond, SF 94118 1536032 12 units · 3 fl · 1925

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 430 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 1925
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.

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 1925
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
Units12
Floors3
Year built1925
Total area7,302 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1536032
Ownership

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

Owner name
Mailing address
Susan Sangiacomo-trinity Pr 1145 Market St #1200 San Francisco CA 94103
Last sale
071602

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 3-story, 12-unit multi-family residential building at 430 9th Avenue in the Inner Richmond has a complex maintenance history spanning multiple decades. Built in 1925 and currently owned by 430 9th Avenue LLC, this apartment building has faced several significant maintenance and safety issues over the years. Most recently, in October 2023, there was a complaint filed regarding inadequate trash management, with reports of cat litter and waste in common areas. The building's infrastructure has seen some upgrades, including the installation of a new Peerless steam boiler in 2017, though a permit filed in 2002 for constructing a parking lot in the backyard without proper authorization remains active.

Historical records show that between 2000 and 2002, the building experienced multiple violations including interior surface issues (leaks, floor damage, and peeling paint), fire safety concerns (fire proofing, ventilation, and fire escape maintenance), security problems (exit door locks), and heating system deficiencies. These violations were all officially abated by July 2000. More recent concerns include multiple reports of garbage and debris issues on the property in 2024, with one case specifically mentioning furniture problems. The building has required various maintenance interventions over the years, including reroofing work in 2002 (permit expired) and attempts to address multiple building code violations. Outside the building, there are currently open concerns regarding tree root damage to the sidewalk, which has been reported to the City in 2024.

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

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Risk rating

How 430 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
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.

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 severity forecast
No violation 22.9%
Moderate concern 49.3%
Severe concern 27.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

430 9Th Ave apartment reviews

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On the map

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8 found
The story over time

430 9Th Ave event timeline

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

2026
Fire Complaint Jun 16
Alarm Systems
311 RequestJun 08
311 service request

See all 7 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 430 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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