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1446-1448 9Th Ave

Inner Sunset, SF 94122 1845034 2 units · 2 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 Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1446-1448 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 1909
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units2
Floors2
Year built1909
Total area2,960 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1845034
Ownership

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

Owner name
Delorenzi Family Trust The
Mailing address
Alfred & Betty Delorenzi 2826 Arguello Dr Burlingame CA 94010
Last sale
042397

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.

1448 09th Ave, San Francisco, CA 94122
1446 09th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-unit residential building at 1446-1448 9th Avenue in the Inner Sunset, owned by the Delorenzi Family Trust, has undergone several significant maintenance and safety-related events since its construction in 1909. Most recently, in February 2023, the building received a substantial roof renovation costing $19,200, which involved complete removal of existing roofing materials and installation of new shingles and a modified bitumen system. The electrical system was notably upgraded in 2003 with an underground service conversion and 200-amp main service upgrade. The building has experienced several safety inspections and maintenance issues over the years, including three separate building violations in 2002 related to staircase repairs, and 2010 violations concerning fire safety equipment and handrails, though all these issues were abated within reasonable time frames.

There have been multiple concerning incidents regarding unauthorized units in the building, with investigations in 2012-2013 suggesting the presence of unauthorized units with separate utilities and questionable access routes. A notable infrastructure issue occurred in 2013 with a flood incident reported in one of the apartments. While the building's documented history shows these violations and complaints were addressed and resolved, including a 1986 permit to bring the building into code compliance, the property has experienced recurring issues with parking enforcement, with multiple citations for blocked driveways recorded between 2021 and 2024. The building's maintenance record, particularly the recent roof renovation and electrical upgrades, suggests active property management, though the historical pattern of building violations regarding safety features and unauthorized units indicates past maintenance challenges that required remediation.

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

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Risk rating

How 1446-1448 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
75th percentile

Out of 1493 buildings in this neighborhood, 373 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

DBI complaints, owner's portfolio

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

Neighborhood location

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

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month severity forecast
No violation 87.1%
Moderate concern 9.7%
Severe concern 3.2%
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

1446-1448 9Th Ave event timeline

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

2023
Building Permit Feb 22
Reroofing. tear off (e) roof covering, new shingle shall be installed, modified bitumen system
$19,200 · Complete

See all 1 events

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

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Every record we have

Full data for 1446-1448 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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