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605 Lyon St

North Panhandle, SF 94117 1176005 7 units · 2 fl · 1922

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in North Panhandle
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 605 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 1922
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units7
Floors2
Year built1922
Total area5,362 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1176005
Ownership

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

Owner name
Kong Juan C & Kempner Donna
Mailing address
196 Yerba Buena Ave San Francisco CA 94127
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 7-unit, 2-story multi-family residential building at 605 Lyon St in the Park North neighborhood, owned by Kong Juan C & Kempner Donna, has undergone several significant safety and infrastructure improvements since its construction in 1922. Most notably, the building completed a mandatory soft-story retrofit in 2014 at a cost of $98,000, bringing it into compliance with seismic safety requirements. Recent work includes a reroofing project initiated in December 2024 at a cost of $22,000. The building has a documented history of addressing safety concerns, including a 2016 UL Certification Verification by the fire department that resulted in "Condition Corrected" status, and the installation of a grounding system in 2015.

The property has experienced several maintenance and compliance issues over its history, particularly in the early 2000s, when multiple fire safety violations were documented, including egress obstructions. These violations, along with interior surface issues such as damaged ceilings, were all resolved by 2010. Routine safety inspections have been conducted in 2001, 2003, 2009, and most recently in 2017, with no active violations currently on record. The building underwent foundation improvements in 2015 to support garage infrastructure, and various maintenance matters have been addressed through building permits over the years. Recent 311 calls in 2024 have primarily concerned street-level issues such as garbage and debris, but these are external to the building itself and have been generally resolved through municipal services.

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

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Risk rating

How 605 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
28th percentile

Out of 797 buildings in this neighborhood, 574 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
63%
No DBI
violation
37%
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.

Number of units

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

Building size

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

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 51.9%
Moderate concern 27.4%
Severe concern 20.6%
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

605 Lyon St event timeline

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

2026
311 Request Jun 11
Garbage and debris
mattress
311 RequestJun 11
Garbage and debris

See all 7 events

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

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Every record we have

Full data for 605 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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