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431-433 24Th Ave

Central Richmond, SF 94121 1456004A 2 units · 2 fl · 1915

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 431-433 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 1915
2 or more units
2 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
Units2
Floors2
Year built1915
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1456004A
Ownership

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

Owner name
Chen Shao Mei
Mailing address
431 24th Ave San Francisco CA 94121
Last sale
062999

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.

431 24th Ave, San Francisco, CA 94121
433 24th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

This two-unit, two-story multi-family residential building located at 431-433 24th Avenue in the Central Richmond neighborhood was built in 1915 and is currently owned by Chen Shao Mei. The building has undergone several permitted improvements over the years, including a horizontal addition completed in 1992 costing $25,000, window and bedroom repairs in 1995, and a kitchen remodel in 1998. A significant complaint was filed in 1997 regarding illegal basement units and unauthorized garage conversions for commercial use, though this issue was marked as not active within two weeks of being reported. More recently, in August 2013, there was a fire safety complaint about operating without a permit, which was promptly corrected within two days.

The property has experienced various maintenance and safety issues over the past several years, with the most notable being a sewage backup incident in August 2019 that required immediate attention and resolution. Between 2022 and 2025, there have been multiple street-level maintenance issues including abandoned vehicles, garbage, debris, and sidewalk cleaning needs. Parking enforcement has been regularly required at this location, with twelve documented citations or complaints about blocked driveways and illegal parking between 2019 and 2025. These parking-related incidents suggest persistent challenges with street access and parking availability in the vicinity of the property. The building's maintenance history shows a pattern of both structural improvements and reactive maintenance needs over the past3 decades, with no major renovations or rebuilding work recorded in recent years.

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

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Risk rating

How 431-433 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
42th percentile

Out of 2250 buildings in this neighborhood, 1305 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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.

12-Month severity forecast
No violation 79.6%
Moderate concern 16.2%
Severe concern 4.2%
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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On the map

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The story over time

431-433 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 431-433 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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