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228 Guerrero St

Mission Dolores, SF 94103 3545004 2 units · 2 fl · 1916

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 228 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 1916
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1916
Total area2,660 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3545004
Ownership

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

Owner name
Serrano Sara
Mailing address
199 Sweeny St San Francisco CA 94134
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 two-unit, two-story multi-family residential building at 228 Guerrero Street, owned by Sara Serrano, was built in 1916 and has undergone several significant renovations and faced various maintenance challenges over the years. Most notably, in 2019, the building underwent extensive work to address multiple code violations, including ceiling and wall repairs, fire proofing, and the installation of required smoke and carbon monoxide alarms. This series of violations and the associated repairs, which were completed by May 2019, suggest a period of substantial correction work was needed to bring the building up to current safety standards. Earlier improvements to the property include a kitchen remodel with associated electrical and plumbing work in 2011, sprinkler installation in 1990, and an addition completed in 1989.

The building has had some concerning incidents in its history, including a roof leak documented in early 2019 that required inspection and resolution, and unauthorized construction work reported in 2010, though both issues were eventually resolved. A minor fire incident was recorded (but not linked to this address), involving a contained cooking fire with no civilian injuries. More recently, there have been various parking and street-related issues documented through 311 calls in the vicinity, including multiple reports of blocked driveways and illegal parking between 2023-2024, though these are external to the building itself and relate to street use rather than property conditions. The most recent building permit activity shows consistent maintenance with a water heater installation completed in 2019.

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

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Risk rating

How 228 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
90th percentile

Out of 799 buildings in this neighborhood, 80 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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 76.0%
Moderate concern 14.9%
Severe concern 9.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

228 Guerrero St event timeline

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

2025
Fire Complaint Mar 21
Sprinkler/Standpipe Systems
Condition Corrected

See all 2 events

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

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Every record we have

Full data for 228 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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