Free SF apartment background check

439 Arguello Blvd

Inner Richmond, SF 94118 1433007 6 units · 2 fl · 1973

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 Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 439 Arguello Blvd 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 1973
2 or more units
6 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.

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 1973
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
Units6
Floors2
Year built1973
Total area4,430 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1433007
Ownership

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

Mailing address
Woon Dylan 380 26Th Ave Apt 5 San Francisco CA 94121
Last sale
090717

Landlord portfolio

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

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Augrented Insights
Initial analysis

The six-unit, two-story multi-family residential building at 439 Arguello Blvd, owned by 439 Arguello Apartments LLC, has undergone several significant safety and infrastructure upgrades since its construction in 1973, most notably its completed soft-story retrofit in 2014-2016 which addressed seismic safety requirements. The building has experienced recurring fire safety system maintenance issues, with multiple fire alarm system upgrades implemented between 2016-2020, including a comprehensive fire alarm system replacement in 2020 costing $33,276. The property has also had plumbing challenges, with reports of sewer overflow issues in 2002-2004, including one incident involving raw sewage near the garage entrance, though records show a building sewer and trap replacement was completed in 2015. Recent records indicate ongoing attention to fire safety systems, with fire extinguisher and alarm system citations in 2022 and 2024 showing prompt corrective action taken.

The building's maintenance history reveals a pattern of addressing safety compliance issues, including gas meter instruction updates and ceiling repairs in 2002, and a roof leak complaint in 1998. More recent fire safety inspections in 2024 noted concerns about extinguishers and alarm systems, though these were marked as "Condition Corrected." The property has experienced intermittent maintenance issues over the years, with regular inspections showing systematic efforts to address violations, as evidenced by the prompt correction of various fire safety violations and the successful completion of significant infrastructure projects like the soft-story retrofit and fire alarm system upgrades. The building's location has experienced typical urban challenges as reflected in recent 311 calls, primarily related to street-level issues such as parking violations and sidewalk maintenance, though these are external to the building itself.

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

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Risk rating

How 439 Arguello Blvd'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
88th percentile

Out of 1723 buildings in this neighborhood, 207 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Property class: single-family home

Single-family homes (class A) have distinct violation and complaint patterns from multi-family buildings.

12-Month severity forecast
No violation 78.3%
Moderate concern 11.8%
Severe concern 9.9%
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

439 Arguello Blvd event timeline

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

2020
Building Permit Oct 22
Replacement & upgrade installation of fire alarm system in non-sprinkler building. replace of existing facu with a new ifp-75 fire alarm control unit, replace existing smoke detectors, horn strobes, monitor module for radio communicator and pull station, install of new low frequency sounders for all
$33,276 · Complete
Electrical PermitSep 02
Renovation of existing devices in common areas + upgrade to meet 2021 fire code

See all 3 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 439 Arguello Blvd 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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