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538-540 24Th Ave

Central Richmond, SF 94121 1521029 2 units · 3 fl · 1981

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
Above average
avg 0.5
5
FewerMore

This building has 5 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 538-540 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 1981
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors3
Year built1981
Total area5,081 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1521029
Ownership

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

Owner name
Donald M Wong Exemption Tr
Mailing address
Julie Hornsby 209 Via La Cumbre Greenbrae CA 94904
Last sale
032321

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.

538 24th Ave, San Francisco, CA 94121
540 24th Ave, San Francisco, CA 94121
538 A 24th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The three-story multi-family residential building at 538-540 24th Avenue in the Central Richmond neighborhood, owned by Donald M Wong Exemption Trust, has undergone several significant maintenance and upgrade projects since its construction in 1981. Most recently, in 2023, the building received a new roof costing $23,300, and underwent stucco repairs due to dry rot issues that were identified in March 2023, with the work completed in April 2023 as part of window replacement improvements. In January 2023, all 12 exterior windows were replaced with new materials including Fiberx or fiberglass. The building's history shows earlier challenges with unauthorized unit conversions and maintenance issues, particularly during 2001-2002 when multiple housing violations were documented regarding water damage, mold, and unauthorized modifications. These violations were resolved through various corrective actions, including a $62,000 unit legalization project in 2016 to properly configure the first-floor dwelling unit. More recent infrastructure concerns include two sewage backup incidents in August 2024, though these were promptly addressed by city services. The property has also experienced recurring issues with illegal parking and sidewalk blocking, as evidenced by multiple citations issued between 2020 and 2024, though these are external to the building's condition and maintenance.

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

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Risk rating

How 538-540 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
20th percentile

Out of 2250 buildings in this neighborhood, 1800 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

Building permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month severity forecast
No violation 73.8%
Moderate concern 23.7%
Severe concern 2.5%
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

538-540 24Th Ave event timeline

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

2026
DBI Complaint Apr 29
Floors are uneven, and walls are being pushed in (bowed walls), and dips in the flooring. dryer exhaust not up to code. this is at 1st floor.
Housing Inspection Services

See all 13 events

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

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Every record we have

Full data for 538-540 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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