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43-47 Guerrero St

Mission Dolores, SF 94103 3502034 3 units · 4 fl · 1908

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
3
FewerMore

This building has 3 novs (7y), above the Mission Dolores average of 2.9.

Rent & eviction protection

Is 43-47 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 1908
2 or more units
3 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
Units3
Floors4
Year built1908
Total area6,190 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3502034
Ownership

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

Owner name
John E Wai 1981 Lvg Tr
Mailing address
John E Wai, Ttee Po Box 641045 San Francisco CA 94164
Last sale
061219

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.

43 Guerrero St, San Francisco, CA 94103
47 Guerrero St, San Francisco, CA 94103
45 Guerrero St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The 43-47 Guerrero Street property, consisting of three residential units and constructed in 1908, has undergone several significant improvements and faced multiple challenges in recent years. Most notably, there is currently an active complaint filed in August 2023 regarding rodent infestation and concerns about non-responsive management, with additional complaints about unauthorized smoking in common areas. The building had substantial safety upgrades in 2016, including the installation of a comprehensive fire sprinkler system ($47,000) with 93 heads, and a sprinkler monitoring system, demonstrating a commitment to improving fire safety. In 2019, the property received a new roof ($13,264), indicating ongoing maintenance efforts. The building underwent significant interior improvements in 2015, including bathroom and kitchen remodels, washer/dryer installations, and electrical upgrades, along with the installation of new HVAC flues.

Recent inspection records and complaints suggest ongoing management and maintenance challenges, including a concerning pattern of delayed hot water service and pest control issues. There was also a complaint in 2015 regarding unsafe construction practices and failure to comply with the Vacant or Abandoned Building Ordinance, though these issues appear to have been resolved. The property has generated various 311 service calls in recent years, primarily related to street cleaning and maintenance issues outside the building. There are two recent complaints from September 2023 suggesting potential violations of occupancy regulations, though the status of these complaints is currently marked as "Not Active." While the building has seen significant safety improvements in recent years, the frequency of recent complaints regarding basic services and maintenance raises questions about current property management practices.

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

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Risk rating

How 43-47 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
17th percentile

Out of 799 buildings in this neighborhood, 663 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
38%
No DBI
violation
62%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Neighborhood (ZIP code)

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

Building size

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

12-Month severity forecast
No violation 32.1%
Moderate concern 56.4%
Severe concern 11.5%
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

43-47 Guerrero St event timeline

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

2025
311 Request Sep 17
Landscaping
empty tree basin
311 RequestSep 17
Not offensive

See all 10 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 43-47 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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