Free SF apartment background check

666-668 11Th Ave

Inner Richmond, SF 94118 1634020D 2 units · 2 fl · 1922

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 666-668 11Th Ave 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 1922
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units2
Floors2
Year built1922
Total area3,600 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1634020D
Ownership

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

Owner name
Uyemoto Theodore T&Aileen Y
Mailing address
666 11th Ave San Francisco CA 94118
Last sale
000000

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.

668 11th Ave, San Francisco, CA 94118
666 11th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit residential building at 666 11th Avenue in the Inner Richmond, owned by Uyemoto Theodore T & Aileen Y, has undergone significant renovations in 2023, totaling over $540,000 in improvements. These include major interior reconfigurations across all three floors, such as bathroom and kitchen relocations, and the construction of new living spaces including two bedrooms, a media room, bathroom, and wet bar on the ground floor. The building systems received comprehensive upgrades, including electrical service enhancement to 200 amps with extensive new wiring and fixture installations, plumbing improvements with new water heater installation, and HVAC system updates with a new furnace. Recent exterior work has been permitted as of December 2023, involving the installation of fiber cement siding on the building's rear and replacement of front windows with aluminum wood-clad casement windows.

The property has a historical record of maintenance and improvements dating back to 1987, with previous exterior work including aluminum siding installation and reroofing in the late 1990s. The building's maintenance history shows regular upkeep, particularly the recent emphasis on modernizing and improving building systems. While there have been several 311 calls in recent years regarding the property location, these primarily concerned street-related issues such as parking violations and sidewalk conditions, with no reported problems regarding the building's structural integrity or safety. The most significant recent improvements, focusing on both aesthetic and functional upgrades, suggest substantial investment in maintaining and modernizing the property to current standards.

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

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Risk rating

How 666-668 11Th Ave'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
93th percentile

Out of 1723 buildings in this neighborhood, 121 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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 age

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

Building age

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

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 86.8%
Moderate concern 11.1%
Severe concern 2.1%
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

666-668 11Th Ave event timeline

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

2025
Building Permit Jul 03
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
$12,000 · Complete

See all 9 events

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

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Every record we have

Full data for 666-668 11Th Ave apartments

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

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