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4109-4111 Irving St

Outer Sunset, SF 94122 1797001A 2 units · 2008

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 Outer Sunset
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Outer Sunset average of 1.8.

Rent & eviction protection

Is 4109-4111 Irving 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 2008
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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.

Building characteristics
Units2
Floors—
Year built2008
Total area2,583 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1797001A
Ownership

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

Owner name
Tam Arthur
Mailing address
4109 - 4111 Irving St San Francisco CA 94122
Last sale
091912

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

4111 Irving St, San Francisco, CA 94122
4109 Irving St, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 4109-4111 Irving Street in San Francisco's Outer Sunset neighborhood is a two-unit multi-family residential building that was completed in 2008, following the demolition of a single-story structure in 2004. The building, owned by Arthur Tam, underwent significant construction between 2003-2008, including the installation of comprehensive electrical systems in 2007 (#E200703125870) with 50 lights, 100 receptacles, and 30 circuits, and ground floor remodeling in 2009 that added a guest room, half bath, and storage space. Recent history shows minimal building-related issues, with only one building complaint in 2023 regarding construction noise (though this was mistakenly linked to this address), and no active building code violations or safety concerns.

The property has generated multiple 311 calls over the past three years, primarily related to parking issues, with multiple citations issued for illegal parking and blocked driveways between March and July 2024. There was also one complaint about garbage and debris in July 2024, though this was resolved with the involvement of DPW. While the building's construction history shows thorough documentation of permitting and inspections during its development phase, including addressing dry-rot issues in 2004, the recent maintenance and habitability record appears stable, with no documented safety concerns or building code violations in recent years. The building's development history includes several significant steps, from initial planning and discretionary review in 2002, through various permit approvals and modifications, culminating in its current two-unit configuration.

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

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Risk rating

How 4109-4111 Irving 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
94th percentile

Out of 632 buildings in this neighborhood, 38 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

Permit rate, owner's portfolio

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

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 84.4%
Moderate concern 11.6%
Severe concern 4.0%
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

4109-4111 Irving St event timeline

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

2024
311 Request Apr 02
Other illegal parking
White - Toyota - 7gxp200

See all 4 events

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

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Every record we have

Full data for 4109-4111 Irving St apartments

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

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