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1903-1905 Lyon St

Pacific Heights, SF 94115 1007007 5 units · 3 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 Pacific Heights
At or below average
avg 1.4
0
FewerMore

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

Rent & eviction protection

Is 1903-1905 Lyon St 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
5 units
Property type
Multi-Family Residential
Zoning
SACTO
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
Units5
Floors3
Year built1907
Total area7,125 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1007007
Ownership

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

Owner name
Trust B/Yui Won G & Wai Kin
Mailing address
Yui Wing Wong Trustee 3208 Sacramento St San Francisco CA 94115
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.

3208 Sacramento St, San Francisco, CA 94115
1905 Lyon St, San Francisco, CA 94115
1903 Lyon St, San Francisco, CA 94115
3206 Sacramento St, San Francisco, CA 94115
Augrented Insights
Initial analysis

The 1903-1905 Lyon Street property is a 3-story, 5-unit multi-family residential building with ground-floor retail space, constructed in 1907 in San Francisco's Pacific Heights neighborhood. The building's records show several notable events, most significantly a series of housing code violations in December 2007 that were all addressed and abated by January 17, 2008. These violations included safety issues such as the need for fire extinguishers, security concerns regarding self-closing doors, and matters related to gas meter instructions and shutoff tools. The building experienced three fire-related incidents in recent history, though none resulted in civilian injuries or significant damage, with causes ranging from unintentional system activations to good intent calls. A building permit for street space usage was issued in 2013 for a nominal cost of $1.

In recent months (from August to November 2024), there have been multiple reports and complaints in the vicinity of the building, primarily related to parking issues such as blocked driveways and abandoned vehicles, as well as some street maintenance matters. Three encampment-related incidents were reported near the property in September 2024, though all were marked as "Unable to Locate" by responding agencies. Several illegal posting incidents and one case of overflowing city garbage cans were also noted in the area during this period.

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

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Risk rating

How 1903-1905 Lyon St'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
39th percentile

Out of 963 buildings in this neighborhood, 587 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
58%
No DBI
violation
42%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 44.6%
Moderate concern 31.5%
Severe concern 23.8%
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

1903-1905 Lyon St event timeline

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

2026
Electrical Permit Mar 16
Survey permit with report for potential increase in amperage for commercial space
Issued

See all 3 events

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

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Every record we have

Full data for 1903-1905 Lyon St 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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