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523-525 24Th Ave

Central Richmond, SF 94121 1520003 2 units · 2 fl · 1914

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 523-525 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 1914
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
Floors2
Year built1914
Total area2,600 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1520003
Ownership

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

Owner name
Tak Yee Yan Family Trust
Mailing address
Yan Fung Chun Yu Succ Trust 525 24Th Ave San Francisco CA 94121
Last sale
041196

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.

525 24th Ave, San Francisco, CA 94121
523 24th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 523-525 24th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Richmond neighborhood. Built in 1914 and currently owned by the Tak Yee Yan Family Trust, this flats and duplex building has undergone several renovations and has experienced various maintenance issues over its history. The most significant recent incident was a sewage back-up discharge from the catch basin in September 2024, which was resolved through field work by the PUC Sewer Operations. The building's maintenance history shows some attention to structural upkeep, including reroofing work in 2011 costing $6,900 and the installation of aluminum windows in 1985. An earlier issue with potential dry rot around the garage door was documented in 1994, though this permit has since expired.

The property has experienced recurring issues with abandoned vehicles in the vicinity, with reports in 2016 and 2019, though both cases were resolved when the vehicles were no longer present. There have been occasional concerns regarding street cleanliness, including reports of garbage and debris in 2024 and general cleaning needs in 2014, all of which were addressed by the appropriate agencies. A fire incident recorded in the area was determined to be a false alarm with no civilian injuries reported. The building's documented history shows regular maintenance and prompt response to most issues, though the recent sewage incident may warrant attention to the building's plumbing systems.

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

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Risk rating

How 523-525 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
39th percentile

Out of 2250 buildings in this neighborhood, 1372 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.

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.

12-Month severity forecast
No violation 76.3%
Moderate concern 19.3%
Severe concern 4.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

523-525 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 523-525 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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