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428 22Nd Ave

Central Richmond, SF 94121 1523039 3 units · 2 fl · 1977

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 428 22Nd 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 1977
2 or more units
3 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
Units3
Floors2
Year built1977
Total area3,819 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1523039
Ownership

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

Owner name
Yit Ngan & See Wah Wong Kwo
Mailing address
Winnie Hung 25012 Nellie Gail Rd Laguna Hills CA 92653
Last sale
022213

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The three-unit, two-story multi-family residential building at 428 22nd Ave in Central Richmond, owned by Yit Ngan & See Wah Wong Kwo, was constructed in 1977 and has undergone several significant modifications over the years. The most substantial recent improvement occurred in 2011, when a $28,000 ground floor interior remodel was completed, which included the legalization of a bathroom, and the addition of a playroom and laundry facilities, along with corresponding plumbing and electrical work. This renovation project, which included the installation of new lights, switches, receptacles, and smoke detectors, appears to have been successfully executed and completed.

The building's most serious historical issues occurred in 2002, when multiple fire safety violations were documented, including problems with smoke detectors, egress obstructions, and missing automatic fire sprinklers over garbage receptacles. These violations were all addressed and abated by June 11, 2002. There was also an attempted horizontal extension project at the rear ground floor in 2009 that was ultimately cancelled, and records show a 1993 reroofing permit that has since expired. More recently, there have been several parking-related incidents near the property, with multiple reports of vehicles blocking driveways or parking on sidewalks between 2018 and 2023, though these are not directly related to the building's condition or habitability. A single instance of graffiti on the building was reported and resolved in 2013.

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

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Risk rating

How 428 22Nd 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
73th percentile

Out of 2250 buildings in this neighborhood, 608 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Permit rate, owner's portfolio

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

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 67.4%
Moderate concern 18.8%
Severe concern 13.8%
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

428 22Nd Ave event timeline

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

2025
DBI Complaint Aug 25
Date last observed: 24-aug-25; time last observed: today ; floor: 1st; unit: 4; exact location: in-law unit; building type: residence/dwelling insects/rodents; mold; water entering building; work being done in dangerous manner;
Housing Inspection Services

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 428 22Nd 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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