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319 21St Ave

Central Richmond, SF 94121 1453002 3 units · 2 fl · 1976

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 Central Richmond — not a forecast
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 319 21St 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 1976
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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 1976
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
Units3
Floors2
Year built1976
Total area3,250 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1453002
Ownership

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

Mailing address
Lam Andrew Shuen-chark Ttee 227 Encounter Bay Alameda CA 94502
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit, two-story multi-family residential building at 319 21st Avenue in the Central Richmond neighborhood, built in 1976 and currently owned by Andrew Shuen-chark Lam Tr, has undergone significant renovation work over the past several years. In 2017, the property underwent major improvements with approximately $150,000 in renovations to the front entry hallway, various unit bathrooms, kitchen remodels, and comprehensive drywall replacements across multiple floors, along with window replacements and siding repairs. Other notable improvements during 2017 included the installation of new furnaces for multiple units, electrical upgrades including new lighting and smoke detectors, and plumbing updates. The building experienced a building fire incident in 2017, classified as an unintentional ignition with no civilian injuries reported, though a subsequent hoarding complaint was filed and resolved by December 2017.

Prior to the 2017 renovations, the building underwent various improvements including reroofing projects in 2016 and 1990, and earlier bathroom and kitchen remodels in 2015. The property had a routine housing inspection in 2009 that resulted in fire safety violations regarding fire extinguishers, which were promptly corrected within three weeks. Recent years have seen regular street cleaning and maintenance activity recorded through 311 calls, though these are primarily related to external areas and not the building's internal conditions. While the building has had multiple permits issued for substantial improvements, including heating system upgrades and comprehensive renovations, there are no currently active building violations or recent housing complaints on file, suggesting that the property has generally been well-maintained and brought into compliance with safety requirements.

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

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Risk rating

How 319 21St 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
84thpercentile

Out of 2250 buildings in this neighborhood, 360 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
90%
No DBI
violation
10%
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.

Estimated permit spend (past 7 years)

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Building permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 10%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

319 21St Ave apartment reviews

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On the map

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The story over time

319 21St Ave event timeline

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

2026
311 Request Apr 25
Garbage and debris
other loose garbage debris yard waste

See all 3 events

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

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Every record we have

Full data for 319 21St Ave apartments

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

Side by side

How 319 21St Ave compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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