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838 41St Ave

Outer Richmond, SF 94121 1683027 2 units · 3 fl · 1922

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Richmond — not a forecast
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 838 41St 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.

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 1922
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
Floors3
Year built1922
Total area2,532 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1683027
Ownership

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

Mailing address
Sik K & & Lai F Chau Truste 4451 Deer Ridge Rd Danville CA 94506
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 Chau Family Revocable Trust owns this three-story, two-unit multi-family residential building located at 838 41st Avenue in San Francisco's Outer Richmond neighborhood. Originally constructed in 1922, the building underwent significant renovations in 2010, following major water damage, which included comprehensive work on the first and second floors, bathroom and window replacements, deck renovations, and the installation of new electrical systems including subpanels, lighting, and appliances. The property also received updates to its plumbing infrastructure, including bathroom and kitchen remodeling with new water lines and a hot water heater installation.

Recent history shows various maintenance and compliance issues, with particular attention to sewer system problems evidenced by two sewage backup incidents in early 2017 and March 2018 involving 4-inch sewer vents. The building has experienced multiple parking-related incidents, including two cases of driveway blocking (most recently in October 2024), and there have been two requests for red color curbs in 2018. Other maintenance concerns have included hazardous materials (glass) reported in September 2023, toters left out continuously in 2020, and some pavement issues noted in 2016. While most of these issues have been resolved, the building's history shows a pattern of periodic maintenance needs and compliance matters typical of older multi-family residential structures in the area.

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

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Risk rating

How 838 41St 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
49thpercentile

Out of 1040 buildings in this neighborhood, 530 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
85%
No DBI
violation
15%
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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month risk forecast
Low failure risk 15%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

838 41St Ave apartment reviews

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On the map

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The story over time

838 41St 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 838 41St Ave apartments

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

Side by side

How 838 41St Ave compares to the neighborhood

This building against comparable properties in Outer Richmond. Toggle filters to narrow the peer group.

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

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