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421 Arguello Blvd

Inner Richmond, SF 94118 1433003 8 units · 4 fl · 2012

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Richmond — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 421 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 2012
2 or more units
8 units
Property type
Multi-Family Residential
Zoning
RM2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

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 2012
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Likely exempt from AB 1482. Housing with a certificate of occupancy issued within the previous 15 years is exempt from the state rent cap and just-cause rules.

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
Units8
Floors4
Year built2012
Total area14,562 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1433003
Ownership

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

Mailing address
Paul Sergio Iantorno 2170 Sutter St San Francisco CA 94115
Last sale
July 10, 2006

Landlord portfolio

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

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Augrented Insights
Initial analysis

421 Arguello Boulevard is a 4-story, 8-unit multi-family residential building constructed in 2012 by Golden Properties LLC in San Francisco's Inner Richmond neighborhood. The building underwent significant construction work between 2007-2012, including the installation of comprehensive fire safety systems (sprinklers, alarms), heating and ventilation systems, full electrical service upgrades, and complete plumbing infrastructure for all units. During construction in 2010, the property faced multiple violations related to vacant or abandoned building ordinances, though these were resolved by June 2010. In 2012, the building received its final inspections for several permits and underwent a house trap replacement.

Recent concerns have focused on exterior modifications, with complaints filed in February 2023 regarding newly installed lights on the building's roof affecting residents' quality of life. The building has maintained its infrastructure with recent upgrades including EV charging facilities installed in 2016. Fire safety compliance appears generally stable, with violations recorded in 2018 related to exit pathways, electrical clearance, and alarm system maintenance, all of which were abated. The property experienced one incident of elevator failure in 2012 and multiple fire-related service calls, mostly for false alarms or minor issues. Recent activity around the building primarily involves external issues such as graffiti and parking violations, with the most recent reports from late 2024 related to parking enforcement and defaced city signs. The building's original construction involved addressing specific zoning requirements, including a variance for rear yard setback to convert a former garage structure into residential use, which was approved as part of the overall development project.

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

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Risk rating

How 421 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

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
18thpercentile

Out of 1723 buildings in this neighborhood, 1413 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
67%
No DBI
violation
33%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Number of units

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month risk forecast
Moderate failure risk 33%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

421 Arguello Blvd apartment reviews

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On the map

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The story over time

421 Arguello Blvd event timeline

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

2023
DBI Complaint Feb 24
Modification to exterior of building. installed lights on the top of the building, on all night affecting quality of life.
Electrical Inspection Division
DBI ComplaintFeb 17
Modification to exterior of building. installed lights on the top of the building, on all night affecting quality of life.

See all 2 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 421 Arguello Blvd apartments

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

Side by side

How 421 Arguello Blvd compares to the neighborhood

This building against comparable properties in Inner Richmond. 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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