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1731 9Th Ave

Inner Sunset, SF 94122 2040007 2 units · 2 fl · 1965

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 1731 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 1965
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 built1965
Total area3,934 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2040007
Ownership

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

Owner name
Bottaro Bypass Trust
Mailing address
Ortega Angela Marie, Ttee 813 Gary Ave Sunnyvale CA 94086
Last sale
072121

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit, two-story residential building at 1731 9th Avenue, owned by Bottaro Bypass Trust, was constructed in 1965 in San Francisco's Inner Sunset neighborhood. The building's maintenance record shows limited historical work, with only two notable permits on file: a reroofing project from 1997 (which has since expired) and the replacement of a gas water heater in 2020 (also expired).

The most significant and recent issues have been related to parking concerns, with a notably high frequency of reported driveway blocking incidents between 2022 and 2024. There were twelve documented cases of driveway blocking between December 2022 and September 2024, with various vehicles involved including Toyotas, a Mercedes, a Tesla, and others. While most of these cases were resolved (some resulting in citations), there were several instances where officers were unable to locate the offending vehicles. The building's location has also experienced two other municipal service calls in 2024 regarding an abandoned toter and abandoned vehicles, though these were not directly related to the building's operations. The limited number of building permits and maintenance records on file suggest minimal structural or systems updates have been documented in recent years.

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

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Risk rating

How 1731 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
83th percentile

Out of 1493 buildings in this neighborhood, 254 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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 location

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 79.6%
Moderate concern 12.9%
Severe concern 7.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1731 9Th Ave event timeline

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

2020
Plumbing Permit Jun 15
Work category: 1p; remove/replace gas water heater
Expired

See all 1 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1731 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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