Free SF apartment background check

477 25Th Ave

Central Richmond, SF 94121 1457016 6 units · 2 fl · 1926

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 Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 477 25Th 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 1926
2 or more units
6 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.

Building characteristics
Units6
Floors2
Year built1926
Total area4,650 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1457016
Ownership

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

Owner name
Jean Y Chin Revoc Tr
Mailing address
Chin Jean Y Trustee 450 38Th Ave San Francisco CA 94121
Last sale
030810

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 477 25th Avenue property is a two-story, 6-unit multi-family residential building located in San Francisco's Central Richmond neighborhood, owned by the Jean Y Chin Revocable Trust. Built in 1926, this building has undergone several significant safety and infrastructure improvements over the years. Most notably, in 2024, the building completed a fire alarm system upgrade at a cost of over $25,000, which included the installation of low-frequency sounders in sleeping areas to meet current fire code requirements. The building has also completed a mandatory soft-story retrofit in 2017 (with CFC issued) to improve seismic resilience, following its classification as a Tier 3 property.

The building's maintenance history shows attention to safety systems, particularly regarding fire safety. In 2011, there was a cluster of violations related to fire alarm system maintenance and fire extinguisher requirements, though these were all promptly addressed and abated by August 2011. More recently, in mid-2023, there was one fire alarm system-related complaint that was resolved in August 2023, indicating ongoing commitment to maintaining safety systems. The building's infrastructure maintenance includes window replacements completed in 1998, and there was repair work following earthquake damage in 1990, though that permit has since expired. Recent records from late 2023 and early 2024 show multiple reports of garbage and debris issues on the property, particularly regarding city garbage cans overflowing, with the most recent incidents occurring in October 2023. However, all these sanitation issues have been promptly resolved by Recology, the city's waste management service.

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

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Risk rating

How 477 25Th 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
29th percentile

Out of 2250 buildings in this neighborhood, 1598 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 78.1%
Moderate concern 14.9%
Severe concern 7.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

477 25Th Ave apartment reviews

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The story over time

477 25Th Ave event timeline

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

2024
Building Permit Jan 04
Upgrade existing fire alarm system to comply with sffc section 1103.7.6.1
$14,960 · Complete

See all 8 events

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

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Every record we have

Full data for 477 25Th 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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