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1241 20Th Ave

Central Sunset, SF 94122 1730007 6 units · 2 fl · 1964

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 Central Sunset
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.

Rent & eviction protection

Is 1241 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 1964
2 or more units
6 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.

Building characteristics
Units6
Floors2
Year built1964
Total area4,390 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1730007
Ownership

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

Owner name
Corinne Beall Survivor'S Tr
Mailing address
Beall Corinne Ttee 15895 Greenhorn Rd Grass Valley CA 95945
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 6-unit, 2-story multi-family residential building at 1241 20th Avenue in Central Sunset, owned by Corinne Beall Survivor's Tr, was constructed in 1964 and has undergone several significant safety improvements over recent years. Most notably, the building completed its mandatory soft-story retrofit program, which included the installation of steel moment frames and concrete anchor blocks in the garage area in 2016-2019, with all related structural upgrades now classified as "Work Complete" with CFC issued. The building has maintained active safety systems, with a recent fire alarm system upgrade filed in July 2023, following multiple past false alarm activations that appear to have been caused by system malfunctions rather than fire incidents.

The property has a history of routine inspections revealing various safety and maintenance issues, though all have been resolved. These included fire safety violations in 2000 (related to combustible storage and smoke enclosure doors) and 2009 (regarding egress obstruction, fire extinguisher maintenance, and security requirements). Between 2017-2019, there was a period of non-compliance with the Soft Story Retrofit Program that resulted in violations, though this was eventually resolved through proper retrofitting work. The building's maintenance record shows regular updates to critical systems, including a water heater replacement in 2008 and various garage improvements in 2017, such as electrical upgrades and floor drain replacement. While there have been multiple 311 calls regarding the property area since 2013, these have primarily concerned street cleaning and parking issues rather than building-specific problems, and all were resolved promptly.

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

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Risk rating

How 1241 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

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
34th percentile

Out of 814 buildings in this neighborhood, 537 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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 (ZIP code)

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 71.6%
Moderate concern 12.6%
Severe concern 15.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1241 20Th Ave apartment reviews

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The story over time

1241 20Th Ave event timeline

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

2026
311 Request Jan 02
Homelessness and supportive housing
housing homeless request for service

See all 5 events

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

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Every record we have

Full data for 1241 20Th 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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