Free SF apartment background check

485-499 Guerrero St

Mission Dolores, SF 94110 3568042 2 units · 2 fl · 1906

This building has a substantial enforcement record over the last seven years, and our model sees a moderate chance of more in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Mission Dolores — not a forecast
Above average
avg 2.9
8
FewerMore

This building has 8 novs (7y), above the Mission Dolores average of 2.9.

Rent & eviction protection

Is 485-499 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 1906
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC1
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1906
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1906
Total area2,686 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3568042
Ownership

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

Mailing address
Hom Song Gahn Chin Trustee 497 Guerrero St San Francisco CA 94110
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

487 Guerrero St, San Francisco, CA 94110
499 Guerrero St, San Francisco, CA 94110
497 Guerrero St, San Francisco, CA 94110
495 Guerrero St, San Francisco, CA 94110
489 Guerrero St, San Francisco, CA 94110
491 Guerrero St, San Francisco, CA 94110
485 Guerrero St, San Francisco, CA 94110
493 Guerrero St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 485-499 Guerrero Street in Mission Dolores is a two-unit, two-story multi-family residential building constructed in 1906, currently owned by the Song Gahn Chin Hom Trust. The building's maintenance record shows several significant events, most notably a cluster of building violations in 2019 that included issues with water damage, lead hazards, egress obstruction, and various repair needs, all of which were abated by August 2019. Recent complaints from 2022 raised concerns about lead paint, fire escape access, and common area conditions. The building's maintenance history includes several repairs and improvements, such as stucco repairs in 2002, storefront renovations in 2009, and reroofing work in 1991. Numerous street space permits have been issued over the years, with the most recent ones in 2019 and 2012.

The property has experienced recurring issues with water and moisture problems, with multiple complaints about leaks and water damage dating back to at least 2009. More recent concerns have included problems with the fire escape path and potential lead hazards. While there have been several fire department responses to the address, none involved actual fires or civilian injuries, though there were some system malfunctions and welfare checks recorded. The building's surroundings have seen various maintenance issues in recent months, with multiple reports of sidewalk cleaning needs and graffiti incidents in late 2024, though these are external to the building itself. A potential historic storefront removal was recorded and closed as abated, and there have been several 311 calls in 2024 regarding debris and graffiti that have been resolved.

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

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Risk rating

How 485-499 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
22ndpercentile

Out of 799 buildings in this neighborhood, 623 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
47%
No DBI
violation
53%
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.

DBI complaint rate, owner's portfolio

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

Building age

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

12-Month risk forecast
Moderate failure risk 53%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

485-499 Guerrero St apartment reviews

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On the map

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The story over time

485-499 Guerrero St event timeline

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

2026
311 Request Jun 09
Not offensive
signal box
311 RequestMay 28
Not offensive

See all 22 events

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

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Every record we have

Full data for 485-499 Guerrero St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 485-499 Guerrero St compares to the neighborhood

This building against comparable properties in Mission Dolores. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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