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457 10Th Ave

Inner Richmond, SF 94118 1534011 4 units · 2 fl · 1907

This building has more problems than most buildings in this neighborhood. 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 457 10Th 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 1907
2 or more units
4 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
Units4
Floors2
Year built1907
Total area3,360 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1534011
Ownership

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

Owner name
Kan Johnny & Thomas & Kenne
Mailing address
Kanbros Po Box 22692 San Francisco CA 94122
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The four-unit, two-story multi-family residential building at 457 10th Avenue in San Francisco's Inner Richmond neighborhood was built in 1907 and is currently owned by Johnny Kan, Thomas Kan, and Kenne Kan. The building experienced significant safety compliance issues in the early 2000s, with two routine housing inspections conducted in late 2000 and early 2002 revealing multiple fire safety concerns. These included the need for smoke detectors in stairways and the lobby, fire enclosure doors, fire proofing repairs, and issues with combustible storage that required either removal or installation of automatic fire sprinklers. Security concerns were also identified in 2002, including the need for self-closing devices on exterior doors and the replacement of hollow core entry doors. All of these violations were officially abated by March 16, 2001.

The building's more recent history shows no documented housing violations or critical safety issues, though there have been some external neighborhood incidents recorded through 311 calls in 2013, including graffiti on a pole and mailbox, along with parking meter and stop sign repairs, none of which directly impacted the building's condition or habitability. An abandoned vehicle complaint from 2009 was resolved when the vehicle was no longer present at the location. The absence of recent building violations or complaints, particularly in the last decade, suggests improved maintenance and compliance with safety regulations, though this observation is based solely on available public records up to October 2023.

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

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Risk rating

How 457 10Th 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
24th percentile

Out of 1723 buildings in this neighborhood, 1309 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building age

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

12-Month severity forecast
No violation 68.0%
Moderate concern 20.1%
Severe concern 11.9%
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

457 10Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 457 10Th Ave 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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