Free SF apartment background check

517 Castro St

Eureka Valley/Dolores Heights, SF 94114 3583070 4 units · 3 fl · 1900

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 517 Castro St 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 1900
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
CASTRO
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
Units4
Floors3
Year built1900
Total area5,340 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3583070
Ownership

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

Owner name
Azzolino Trust The
Mailing address
Antonio Azzolino 2985 Churchill Dr Hillsborough CA 94010
Last sale
090894

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 517 Castro Street, constructed in 1900 and containing 4 units, has experienced several notable events and permits throughout its history. Most recently, in December 2024, there were multiple incidents involving illegal parking in the vicinity, with at least two resulting in citations. The property has undergone several maintenance and safety improvements over the years, including the installation of a new grease trap and 3-compartment sink in 2013, street space permits in 2009 and 2010, and important safety upgrades such as a kitchen hood fire system installation in 1999. A significant fire complaint was filed in December 2020 regarding operation without a permit, though this was resolved by March 2023 with the condition corrected designation. The building has maintained its commercial component throughout its history, with planning records showing the continuation of a restaurant use (The Sausage Factory) under the ownership of Mario Azzolino Trust, permitted under Castro Street NCD regulations. The property has also experienced issues with street cleanliness, as evidenced by multiple garbage and debris reports in 2024, though these were generally resolved through city services.

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

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Risk rating

How 517 Castro St'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
22th percentile

Out of 1278 buildings in this neighborhood, 997 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month severity forecast
No violation 50.1%
Moderate concern 32.0%
Severe concern 17.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

517 Castro St apartment reviews

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The story over time

517 Castro St event timeline

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

2025
Building Permit May 29
Reroof w/hot work
$14,000 · Complete
311 RequestJan 23
Garbage and debris

See all 3 events

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

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Every record we have

Full data for 517 Castro St 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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