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541-547 Guerrero St

Mission Dolores, SF 94110 3577030 12 units · 3 fl · 1911

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Mission Dolores
At or below average
avg 2.9
0
FewerMore

This building has 0 novs (7y), at or below the Mission Dolores average of 2.9.

Rent & eviction protection

Is 541-547 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 1911
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 built1911
Total area8,523 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3577030
Ownership

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

Owner name
Judy Librano Marroquin Revo
Mailing address
Flor-reckholder Frances Suc 2524 Nightingale Dr San Jose CA 95125
Last sale
071911

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.

545 Guerrero St, San Francisco, CA 94110
543 Guerrero St, San Francisco, CA 94110
541 Guerrero St, San Francisco, CA 94110
547 Guerrero St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The 12-unit, 3-story multi-family residential building at 541-547 Guerrero Street, constructed in 1911 and currently owned by Judy Librano Marroquin Revo, has experienced several significant maintenance and safety issues in recent years. Active violations from 2017 remain concerning fire safety, including blocked egresses, combustible storage, issues with fire sprinklers, and the need for carbon monoxide and smoke alarm updates. Multiple complaints about hoarding in Unit 3 between 2009-2017 raised serious health and safety concerns, particularly regarding fire hazards and maintenance of common areas. The building underwent important structural improvements in 2010, including foundation work with anchor bolts and plywood installation valued at $20,000.

Recent building maintenance activities include window replacement, electrical work, and plumbing updates in various units between 2014-2018, though some permits related to these repairs have since expired. Multiple 311 calls in recent years (2020-2025) indicate ongoing issues with garbage/debris, graffiti, and sidewalk maintenance near the property. The building has experienced several false fire alarms and system activations between 2009-2021, though no civilian injuries were reported. While there have been some resolved complaints regarding hoarding and fire safety, the persistence of multiple active violations and historical maintenance challenges suggests ongoing oversight of building conditions is necessary.

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

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Risk rating

How 541-547 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
9th percentile

Out of 799 buildings in this neighborhood, 727 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
24%
No DBI
violation
76%
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.

Neighborhood location

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

12-Month severity forecast
No violation 13.1%
Moderate concern 28.5%
Severe concern 58.4%
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

541-547 Guerrero St event timeline

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

2025
Building Permit Oct 07
Replace fire alarm system to meet sf/ca codes & add lf horns in units + add wireless radio monitor
$38,000 · Filed
311 RequestSep 18
Garbage and debris

See all 9 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 541-547 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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