Free SF apartment background check

775-777 24Th Ave

Central Richmond, SF 94121 1620006 2 units · 2 fl · 1923

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 775-777 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 1923
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 built1923
Total area3,630 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1620006
Ownership

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

Owner name
Wong William S M & Ruby L M
Mailing address
1130 Arlington Bl El Cerrito CA 94530
Last sale
070621

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.

777 24th Ave, San Francisco, CA 94121
775 24th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 775-777 24th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Richmond neighborhood. Built in 1923 and currently owned by William and Ruby Wong, this flats and duplex structure has undergone several significant improvements over the years. The most recent and notable work occurred in early 2024, when the property required compliance measures following physical inspection report #CC-8628, which included the removal of an unpermitted garage storage room partition, water heater replacement, and electrical improvements such as grounding for main services and lamp guard installations. This inspection-related work followed a plumbing code violation remedy from 2011 regarding improper water heater venting that was promptly addressed.

The building has seen substantial renovation work in 2011, including a comprehensive $31,500 remodel of the lower unit's bathrooms and kitchen, installation of new furnaces for both units, and various electrical upgrades including new circuits for kitchen appliances and bathroom features. Other significant historical maintenance includes reroofing work completed in 2011 for $7,200, and earlier repairs in 2005 addressing dry rot damage in the master bathroom. The property's recent history shows all building violations and complaints have been properly addressed and resolved, with no active issues on record as of October 2023. The only external service requests recorded through 311 calls were routine municipal matters in 2020, and there was one sidewalk blockage complaint in 2014 that was resolved through standard municipal processes.

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

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Risk rating

How 775-777 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
70th percentile

Out of 2250 buildings in this neighborhood, 675 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Estimated permit spend (past 7 years)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 83.8%
Moderate concern 12.0%
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.
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The story over time

775-777 24Th Ave event timeline

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

2024
Building Permit Jan 12
Remove unpermitted storage room partition in garage.
$600 · Complete
Building PermitJan 11
To comply with physical inspection report # cc-8628

See all 5 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 775-777 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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