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422-424 17Th Ave

Central Richmond, SF 94118 1528031 2 units · 3 fl · 1976

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 422-424 17Th 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 1976
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
Floors3
Year built1976
Total area4,074 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1528031
Ownership

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

Owner name
Chan Family Trust
Mailing address
Chan Joseph & Pik Kwan Seag 571 Monterey Blvd San Francisco CA 94127
Last sale
081409

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.

422 17th Ave, San Francisco, CA 94118
424 17th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The Chan Family Trust owns this three-story, two-unit multi-family residential building located at 422-424 17th Avenue in San Francisco's Central Richmond neighborhood. Built in 1976, this flats and duplex-style building has undergone several significant renovations and maintenance work over the years. Most notably, in 2017, a substantial exterior remodel was completed at a cost of $36,000, which included installing James Hardie fiber cement siding on the front and right side, replacing 12 fiberglass windows in both upper and lower units, and applying vinyl siding to the rear sides. The building previously received a one-story rear addition in 2001 valued at $35,000, and historical records show earlier maintenance work including reroofing in 1993 and plumbing updates in 1984.

The property has experienced several concerning incidents near its vicinity in recent years, including reports of medical waste and human or animal waste on sidewalks in 2020 and 2018, respectively. In 2014, there was an incident of offensive graffiti on the residential building, which has since been resolved. A medical waste incident involving needles was reported and resolved in 2020. The building's documented history also includes various administrative matters such as a cancelled 1983 application to revert the building to legal two-unit status, multiple street space permits in 2017, and a 2008 fire complaint regarding blocked exits that was found to have no merit. Recent maintenance issues have included a tree support removal completed in 2021 and several sign-related matters in 2016. Planning records confirm the building's two-unit status with condominium conversion approvals, and recent improvements include the installation of fiberglass windows and siding replacement.

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

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Risk rating

How 422-424 17Th 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
78th percentile

Out of 2250 buildings in this neighborhood, 495 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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 complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

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 86.8%
Moderate concern 9.6%
Severe concern 3.6%
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

422-424 17Th Ave event timeline

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

2025
Plumbing Permit Jul 28
Work category: 1p; replace sewer and house trap. approximately 20ft (length) x 6ft (depth).
Complete
311 RequestJun 14
Parking on sidewalk

See all 4 events

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

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Every record we have

Full data for 422-424 17Th 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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