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642-644 10Th Ave

Inner Richmond, SF 94118 1635028B 4 units · 2 fl · 1916

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 642-644 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 1916
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 built1916
Total area3,350 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1635028B
Ownership

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

Owner name
Tong Amy & Gong Kenny
Mailing address
644 10th Ave Apt 1 San Francisco CA 94118
Last sale
041614

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.

642 10th Ave, San Francisco, CA 94118
644 10th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 642-644 10th Avenue in the Inner Richmond, built in 1916 and owned by Tong Amy & Gong Kenny, has undergone several significant improvements and maintenance work over the years. Most recently, in 2020, the building received a new roof ($20,700), and Unit #3 underwent substantial renovations including kitchen and bathroom remodels, electrical updates, and the installation of new furnaces and water heater systems ($43,000). These improvements were completed in 2023 with proper inspections and approvals, demonstrating compliance with building codes. The building’s maintenance history shows attention to infrastructure, with earlier significant work completed in 2011 including comprehensive updates to another unit's kitchen and bathrooms, electrical system, plumbing, and furnace replacements.

The building had some notable issues in 2002, when multiple violations were documented during a routine inspection, including fire proofing concerns, stair repairs needed, and smoke detection system deficiencies. However, all these violations were promptly addressed and abated by May 16, 2002. Additional routine inspections from 1996 and 2002 showed normal housing oversight processes. The only recent incident recorded was a graffiti complaint in 2014, which was promptly resolved within a day of reporting. The property's permit and inspection history indicates regular maintenance and upgrading of systems, particularly focusing on safety features, infrastructure, and unit modernization, with no active violations or concerns as of now.

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

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Risk rating

How 642-644 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
45th percentile

Out of 1723 buildings in this neighborhood, 948 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Building age

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

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 74.9%
Moderate concern 15.0%
Severe concern 10.1%
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

642-644 10Th Ave event timeline

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

2023
Plumbing Permit Jul 13
To renew permit #pp20200629009 (unit 3: remodel 1 kitchen and 2 bath with 2 shower pans) for final inspection
Complete
Plumbing PermitJul 13
To renew permit #pm20200715166 (unit #3: install furnace and water heater) for final inspection

See all 7 events

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

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Every record we have

Full data for 642-644 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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