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327-329 Guerrero St

Mission Dolores, SF 94103 3555031N 2 units · 2 fl · 1941

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 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 327-329 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 1941
2 or more units
2 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
Units2
Floors2
Year built1941
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3555031N
Ownership

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

Owner name
Quong William Y & Dorothy L
Mailing address
1775 Hoen Ave Santa Rosa CA 95405
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.

327 Guerrero St, San Francisco, CA 94103
329 Guerrero St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The property at 327-329 Guerrero Street is a two-unit, two-story multi-family residential building located in the Mission Dolores neighborhood, constructed in 1941 and owned by William Y. & Dorothy L. Quong. The building's maintenance history shows attention to structural upkeep, with documented roof work including a $6,480 reroofing project in 2006, following an earlier expired permit for roof work from 1996. Other maintenance records include a water heater replacement in 2017 and installation of garage door operators in late 2004, though these permits are now expired.

The most significant recent issues affecting the property relate to parking enforcement, with multiple documented instances of driveway blocking between July and September 2024, including five citations issued during this period. The most recent building-related incident involved sidewalk cleaning in November 2023. Historical permits indicate regular maintenance of building systems, with the most recent documented work being the water heater replacement in 2017. The property has undergone typical maintenance for its age, including roof work and garage door system installation, though all these permits are now listed as expired. The building's permit history suggests regular maintenance of major systems, though the age of some permits may warrant verification of current system conditions.

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

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Risk rating

How 327-329 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
87th percentile

Out of 799 buildings in this neighborhood, 104 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Neighborhood (ZIP code)

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 77.3%
Moderate concern 10.8%
Severe concern 11.9%
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

327-329 Guerrero St event timeline

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

2025
311 Request Aug 13
Garbage and debris
city garbage can overflowing

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 327-329 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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