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1242 20Th Ave

Central Sunset, SF 94122 1731036 4 units · 2 fl · 1971

This building has more problems than most buildings in this neighborhood. 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 1242 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 1971
2 or more units
4 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
Units4
Floors2
Year built1971
Total area3,878 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1731036
Ownership

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

Owner name
Orest & Irene Wesely Trust
Mailing address
Orest & Irene Wesely P.O. Box 7506 Stockton CA 95267
Last sale
041014

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 4-unit, 2-story multi-family residential building at 1242 20th Avenue in the Central Sunset neighborhood, owned by the Orest & Irene Wesely Trust, was constructed in 1971 and has undergone several maintenance and compliance updates over the years. Notable improvements include the replacement of 18 aluminum windows with new vinyl windows in 2007 at a cost of $14,000, and two street space permit applications in July 2013. The building has undergone three routine housing inspections (2001, 2009, and 2014) which revealed several compliance issues that have since been resolved, including fire safety violations related to combustible storage in the garage, fire proofing requirements, and the need for carbon monoxide/smoke alarm documentation. The 2014 inspection also identified plumbing and electrical concerns regarding water heater placement, along with various general maintenance matters that were abated by September 2014.

The property has experienced recurring issues with street cleanliness and parking enforcement, as evidenced by multiple 311 calls between 2022 and 2025, including reports of human waste, garbage, and illegal parking. Recent complaints in 2024 specifically note issues with garbage and debris, with the most recent incident involving human waste or urine reported in January 2025. The building's maintenance history shows attention to required improvements, though the recurring nature of street-related issues suggests ongoing challenges in the immediate neighborhood regarding external property maintenance and management.

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

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Risk rating

How 1242 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
28th percentile

Out of 814 buildings in this neighborhood, 586 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 32.5%
Moderate concern 12.8%
Severe concern 54.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1242 20Th Ave event timeline

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

2026
311 Request Feb 23
Garbage and debris
human waste or urine
311 RequestJan 25
Garbage and debris

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1242 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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