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1401 20Th Ave

Central Sunset, SF 94122 1833001 6 units · 3 fl · 1950

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 Central Sunset — not a forecast
At or below average
avg 0.7
0
FewerMore

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

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 1401 20Th 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 1950
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RH3
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 1950
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
Units6
Floors3
Year built1950
Total area5,942 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1833001
Ownership

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

Mailing address
Donald & Loretta Cavallero 1310 34Th Ave San Francisco CA 94122
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

This three-story, six-unit multi-family residential building at 1401 20th Avenue in the Central Sunset neighborhood, owned by the Cavallero Family Trust, was constructed in 1950 and has undergone several significant maintenance and safety improvements over the years. Most notably, in 2015, the building completed a seismic soft story retrofit in compliance with San Francisco Building Code requirements, which is particularly important for earthquake safety, and received its Certificate of Final Completion. The property has a history of addressing structural issues, including dry rot repairs in 2010 (approximately 15-20% of the front) and earlier in 2000 when stucco removal and repairs were completed, demonstrating ongoing maintenance of the building's exterior.

Recent improvements include the installation of six sub-panels in July 2023, indicating an upgrade to the building's electrical system. The building's maintenance record shows attention to basic infrastructure needs, with a furnace replacement in 2007 and a reroofing project in 2000. While there have been routine housing inspections in 2001 and 2014, there are no active violations on record. The surrounding area has experienced several street-related issues in recent months, with multiple reports of garbage, debris, and graffiti in 2024, though these are external to the building itself. The most recent maintenance activities and absence of internal building complaints suggest proper ongoing management of the property, with all noted safety requirements having been addressed.

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

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Risk rating

How 1401 20Th 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
21stpercentile

Out of 814 buildings in this neighborhood, 643 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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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

1401 20Th Ave apartment reviews

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On the map

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The story over time

1401 20Th Ave event timeline

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

2026
311 Request Jun 29
Garbage and debris
other bagged boxed contained garbage

See all 7 events

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

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Every record we have

Full data for 1401 20Th Ave apartments

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

Side by side

How 1401 20Th Ave compares to the neighborhood

This building against comparable properties in Central Sunset. 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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