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15 Guerrero St

Mission Dolores, SF 94103 3502039 7 units · 3 fl · 1923

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 15 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 1923
2 or more units
7 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
Units7
Floors3
Year built1923
Total area5,231 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3502039
Ownership

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

Owner name
15-21 Guerrero Street Assoc
Mailing address
A Nocon Po Box 64314 Sunnyvale CA 94088
Last sale
000000

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
AI summary

The 15 Guerrero Street building is a 7-unit, 3-story multi-family residential property located in Mission Dolores, originally built in 1923. The building underwent significant safety upgrades in recent years, including a completed soft-story retrofit in 2017 (costing $53,000) to improve seismic safety, and the installation of a new wireless fire alarm system in 2018 (cost: $16,000). A comprehensive renovation of Unit 4 was completed in 2021, including kitchen and bathroom remodeling with associated plumbing and electrical work (total cost: $20,000). The building had a serious cluster of violations in 2003 that were not abated until 2018, related to fire safety, sanitation, security, and building maintenance issues, but these were all addressed through various improvements, including window replacements and stair repairs in 2018 (cost: $5,500). The most recent major building work was the replacement of common area windows and repair of back stairs due to dry rot, completed successfully and documented as correcting previous violations.

The property has been actively maintained since resolving the 2003 violations, with regular updates to safety systems and unit improvements. Recent 311 calls from 2023-2024 have primarily concerned external issues such as street maintenance, tree management, and occasional reports of flooding, none of which directly affected building safety or habitability. The most recent fire safety inspection in 2005 resulted in corrected conditions, and the building is currently classified as Tier 3 in the city's soft-story program with work completed and a Certificate of Final Completion issued. While there have been various maintenance and service calls recorded in the area, these have mostly related to street-level infrastructure and public space rather than the building itself, suggesting a pattern of proper building management and maintenance.

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Risk rating

How 15 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
72th percentile

Out of 799 buildings in this neighborhood, 224 are predicted to be safer.

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

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.

12-Month severity forecast
No violation 46.0%
Moderate concern 31.3%
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

15 Guerrero St event timeline

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

2025
311 Request Sep 17
Not offensive
sidewalk in front of property
311 RequestSep 08
Not offensive

See all 8 events

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

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Every record we have

Full data for 15 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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