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618-622 Guerrero St

Mission Dolores, SF 94110 3587004 12 units · 3 fl · 1907

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Mission Dolores
Above average
avg 2.9
7
FewerMore

This building has 7 novs (7y), above the Mission Dolores average of 2.9.

Rent & eviction protection

Is 618-622 Guerrero 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
12 units
Property type
Multi-Family Residential
Zoning
RM2
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
Units12
Floors3
Year built1907
Total area8,460 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3587004
Ownership

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

Owner name
F Loy & Helen Fong Fmly Tru
Mailing address
Huie Sonja J Fong & Fong Ra 848 Duncan St San Francisco CA 94131
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.

620 Guerrero St, San Francisco, CA 94110
622 Guerrero St, San Francisco, CA 94110
618 Guerrero St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story, 12-unit apartment building at 618-622 Guerrero Street, known as the F Loy & Helen Fong Family Trust property, was constructed in 1907 and has undergone several significant improvements over the years, most notably completing a mandatory soft-story retrofit in 2016 at a cost of $76,000, achieving compliance with San Francisco's seismic safety requirements. Recent building maintenance issues were addressed in 2023 when the property received multiple violations related to exterior conditions, including paint deterioration, weatherproofing problems, and lead paint concerns, all of which were resolved by June 2023. The building has maintained regular safety inspections, with the most recent fire safety concerns in October 2024 regarding hazardous materials, sprinkler systems, street numbering, extinguishers, and blocked exits, all of which were promptly corrected by November 2024. Earlier maintenance work includes sidewalk repairs (2004), back stair repairs (2002), and roofing work (1998), demonstrating ongoing attention to building infrastructure.

The property has had three recorded fire-related incidents, all involving equipment activation without actual emergencies (alarm system, carbon monoxide detector, and smoke detector), and has successfully completed its Tier 3 soft-story retrofit requirements. Recent 311 calls primarily indicate issues outside the building, such as garbage, debris, and parking violations on the street, which have all been resolved through appropriate municipal channels. The building's regular routine inspections dating back to 1996 suggest consistent oversight from housing authorities, though the recent fire safety violations in 2024 indicate some ongoing challenges with maintaining and documenting compliance with safety requirements.

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

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Risk rating

How 618-622 Guerrero 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
18th percentile

Out of 799 buildings in this neighborhood, 655 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
40%
No DBI
violation
60%
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.

NOV rate, owner's portfolio

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

12-Month severity forecast
No violation 54.5%
Moderate concern 22.8%
Severe concern 22.7%
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

618-622 Guerrero St event timeline

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

2026
311 Request Mar 05
Garbage and debris
other loose garbage debris yard waste

See all 16 events

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

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Every record we have

Full data for 618-622 Guerrero 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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