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1307-1319 20Th Ave

Central Sunset, SF 94122 1775052 18 units · 3 fl · 1925

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Sunset
Above average
avg 0.7
28
FewerMore

This building has 28 novs (7y), above the Central Sunset average of 0.7.

Rent & eviction protection

Is 1307-1319 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 1925
2 or more units
18 units
Property type
Multi-Family Residential
Zoning
NC2
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
Units18
Floors3
Year built1925
Total area46,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1775052
Ownership

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

Owner name
Chang George & Jenny 2006 R
Mailing address
1929 Irving St Ste 307 San Francisco CA 94122
Last sale
060899

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1919 Irving St, San Francisco, CA 94122
1917 Irving St, San Francisco, CA 94122
1929 Irving St, San Francisco, CA 94122
1905 Irving St, San Francisco, CA 94122
1307 20th Ave, San Francisco, CA 94122
1319 20th Ave, San Francisco, CA 94122
1317 20th Ave, San Francisco, CA 94122
1315 20th Ave, San Francisco, CA 94122
1915 Irving St, San Francisco, CA 94122
1931 Irving St, San Francisco, CA 94122
1309 20th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1307-1319 20th Avenue in San Francisco's Central Sunset neighborhood is a 3-story mixed-use building constructed in 1925, containing 18 residential units and commercial space. The building recently completed significant fire safety upgrades in 2023, including a new fire alarm system with low-frequency sounders and smoke detectors, following several fire safety violations in 2023-2024 related to alarms, exits, and extinguishers. The building underwent a major renovation in 2022 (at a cost of $199,000) to make substantial changes including adding staff and children's bathrooms, a break room, and a fire corridor. In 2018, the property completed required soft-story seismic retrofitting work for both its residential and commercial spaces. Recent concerns include active complaints from late 2024 regarding electrical issues, heating problems, plumbing leaks, and mold in Unit 202, as well as a broken intercom system affecting resident access to deliveries and visitors.

The commercial portion of the building has experienced multiple periods of vacancy, with several complaints about vacant storefronts between 2017-2020, before becoming the location of a Cricket wireless store in 2019. The property has maintained relatively consistent compliance with major safety requirements, completing all required fire system upgrades and soft-story retrofitting. There have been multiple fire safety violations recorded between 2019-2024, though most have been promptly addressed. Recent complaints regarding garbage and debris in the vicinity of the property have been documented in early 2025, suggesting ongoing maintenance challenges. The building's current owner, George and Jenny Chang, acquired the property through a 2006 revocable trust, and it remains classified as a multi-family residential building with commercial space.

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

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Risk rating

How 1307-1319 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
0th percentile

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

RiskiestSafest
Predicted 12-month outcome
18%
No DBI
violation
82%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Property class

The assessor's property-class code, which correlates with building type and the violation rates the model expects. This code is grouped with other less-common classes.

12-Month severity forecast
No violation 9.6%
Moderate concern 66.4%
Severe concern 24.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1307-1319 20Th Ave apartment reviews

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The story over time

1307-1319 20Th Ave event timeline

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

2026
Fire Complaint Mar 09
Street Numbering
Violation Issued
Fire ComplaintMar 09
Sprinkler/Standpipe Systems

See all 33 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1307-1319 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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