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855-857 24Th Ave

Central Richmond, SF 94121 1667014 2 units · 3 fl · 1922

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 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 855-857 24Th 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 1922
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 built1922
Total area3,707 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1667014
Ownership

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

Owner name
Chu Kan & Kam Shang 94 Rev
Mailing address
Kan & Kam Shang Chu 855 24Th Ave San Francisco CA 94121
Last sale
121514

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.

855 24th Ave, San Francisco, CA 94121
857 24th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The three-story multi-family residential building at 855-857 24th Avenue in the Central Richmond neighborhood, owned by Chu Kan & Kam Shang 94 Rev, was constructed in 1922 and contains two units. The property has undergone several significant renovations and improvements over the past two decades, with the most substantial work occurring between 2003-2005, including a horizontal addition at the rear, construction of a penthouse, and various interior modifications. During this period, major safety upgrades were implemented, including the installation of a comprehensive fire sprinkler system throughout the building in 2004 ($15,000 project), and extensive electrical work involving new circuits and service installations. The building also received some eco-friendly upgrades, with a solar panel installation project initiated in 2015, though this permit was ultimately cancelled.

Recent maintenance concerns have emerged regarding the building's sewer system, with multiple sewage backup incidents reported through 311 calls between 2021-2023, suggesting a recurring infrastructure issue requiring attention. The most recent of these incidents occurred in October 2023. The property has experienced some parking-related issues in the surrounding area, with multiple complaints about driveway blocking recorded in 2024. While not directly related to the building's condition, these external issues may impact resident convenience. The extensive permit history demonstrates ongoing effort to maintain and improve the property, though some original plans from 2003 (for a horizontal addition and penthouse construction) appear to have expired without being completed. The building's basic systems appear to have been updated and maintained properly, with no major safety violations or hazards reported in recent years.

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

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Risk rating

How 855-857 24Th 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
93th percentile

Out of 2250 buildings in this neighborhood, 158 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 84.8%
Moderate concern 10.3%
Severe concern 4.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

855-857 24Th Ave 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 855-857 24Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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