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31-33 Castillo St

Visitacion Valley, SF 94134 6320012 2 units · 3 fl · 1948

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 Visitacion Valley
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Visitacion Valley average of 1.4.

Rent & eviction protection

Is 31-33 Castillo 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 1948
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
Floors3
Year built1948
Total area1,960 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6320012
Ownership

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

Owner name
Wang Diana Fei
Mailing address
333 Gellert Blvd Apt 210 Daly City CA 94015
Last sale
040821

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.

33 Castillo St, San Francisco, CA 94134
31 Castillo St, San Francisco, CA 94134
Augrented Insights
Initial analysis

The three-story multi-family residential building at 31-33 Castillo Street in Visitacion Valley is a duplex property, constructed in 1948 and currently owned by Diana Fei Wang. The building has undergone significant improvements in recent years, with a comprehensive renovation completed in 2018 that included bathroom and kitchen remodels in both units, installation of fans, and a substantial electrical upgrade featuring a 200-amp service installation, three meters, and various new electrical fixtures including smoke detectors. Additional improvements included a new roof installation in 2018, with the previous roofing permit from 1992 having expired.

The property has experienced recurring issues with parking violations in 2021, particularly concerning driveway blockages, with multiple citations issued, though some vehicles were not located during enforcement attempts. The street and sidewalk areas around the property have required multiple cleaning interventions from the Department of Public Works, particularly in 2022, with reports of loose garbage. Recent activity includes a mechanical street sweeping issue in February 2024, which has been resolved. The building's permit history shows consistent maintenance and upgrading of facilities, with no recorded serious safety concerns or major incidents affecting resident living conditions.

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

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Risk rating

How 31-33 Castillo 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
73th percentile

Out of 214 buildings in this neighborhood, 58 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Construction spend, owner's portfolio

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 77.6%
Moderate concern 11.2%
Severe concern 11.2%
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

31-33 Castillo St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 31-33 Castillo 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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