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642-644 3Rd Ave

Inner Richmond, SF 94118 1642040 2 units · 2 fl · 1905

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems 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 642-644 3Rd 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 1905
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.

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 1905
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

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
Units2
Floors2
Year built1905
Total area3,016 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1642040
Ownership

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

Mailing address
Serene Dong 709 35Th Ave San Francisco CA 94121
Last sale
—

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

642 03rd Ave, San Francisco, CA 94118
644 03rd Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 642-644 3rd Avenue in San Francisco's Inner Richmond district is a two-unit, two-story multi-family residential building constructed in 1905, currently owned by the Wilbur Foo Lim Lew Qtip Trust. The building has undergone several significant maintenance and repair projects over the past decade, most notably a sewer replacement in May 2023 and furnace/duct work replacements in early 2018, which were undertaken to address several building violations issued in November 2017. These violations highlighted multiple safety and maintenance issues that were subsequently resolved by February 2018, including problems with stairs, ceilings, electrical systems, duct insulation, and mold/mildew, as well as lead hazard concerns.

The building has experienced various maintenance and safety-related issues over the years, including a 2019 complaint about excessive noise ("jet engine" sounds) and historical work including reroofing (2012) and sidewalk repairs (2005). More recent service requests from 2020 to 2024 have primarily involved external matters such as street cleaning, abandoned vehicles, tree maintenance, and parking violations, rather than direct problems with the building itself. A notable tree-related service request from October 2021 indicated that while the tree had an extensive canopy, it was not considered an urgent or immediate safety hazard, according to utility arborist inspection. The property appears to be well-maintained in terms of resolving past violations, with all recorded building permits being marked as complete and no active violations currently on file.

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

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Risk rating

How 642-644 3Rd 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

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
26thpercentile

Out of 1723 buildings in this neighborhood, 1275 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
74%
No DBI
violation
26%
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.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month risk forecast
Low failure risk 26%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

642-644 3Rd Ave apartment reviews

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On the map

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8 found
The story over time

642-644 3Rd Ave event timeline

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

2023
Plumbing Permit May 18
Work category: 1p; sewer replacement
Complete

See all 2 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 642-644 3Rd Ave apartments

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

Side by side

How 642-644 3Rd Ave compares to the neighborhood

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