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415-417 Silver Ave

Excelsior, SF 94112 5894015 2 units · 2 fl · 1907

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 Excelsior
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Excelsior average of 1.4.

Rent & eviction protection

Is 415-417 Silver 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1907
Total area1,750 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot5894015
Ownership

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

Owner name
Ng John K & Liu Lisa X
Mailing address
417 Silver Ave San Francisco CA 94112
Last sale
000000

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.

415 Silver Ave, San Francisco, CA 94112
417 Silver Ave, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 415-417 Silver Avenue is a two-unit, two-story multi-family residential building located in the Excelsior neighborhood. Built in 1907 and currently owned by John K. Ng and Lisa X. Liu, this flats/duplex-style building has experienced several notable events throughout its history. In 2008, the property faced regulatory action when a complaint was filed regarding unauthorized modifications, including relocated laundry facilities and construction of storage sheds and roof decks. This resulted in a $7,000 permit to remove the unauthorized structures, which was completed by June 2008. Prior to this, in 2005, there was another complaint about construction work being performed without proper permits.

Most recently, the building has been the subject of multiple 311 calls from late 2024 to early 2025, primarily related to garbage and debris on the property and sidewalk, as well as parking violations. There are currently four open noise-related complaints from December 2024 and January 2025. The property also had a fire alarm system issue in November 2015, which was promptly corrected on the same day. A sidewalk repair permit was issued in December 2006, and in 1988, an aluminum window installation was completed. Additionally, the building was recently involved in two tenant buyout transactions at 407 Silver Avenue in mid-2024, totaling $28,300 for three tenants, though this may refer to a different address than the one under primary consideration.

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

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Risk rating

How 415-417 Silver 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
66th percentile

Out of 337 buildings in this neighborhood, 115 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Neighborhood location

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 74.8%
Moderate concern 15.0%
Severe concern 10.2%
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

415-417 Silver 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 415-417 Silver 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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