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1309-1311 19Th Ave

Central Sunset, SF 94122 1774003 2 units · 2 fl · 1906

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

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.

Rent & eviction protection

Is 1309-1311 19Th 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 1906
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 1906
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
Floors2
Year built1906
Total area2,150 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1774003
Ownership

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

Mailing address
Heidi Tzortzis Trustee 830 Ortega St San Francisco CA 94122
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

1311 19th Ave, San Francisco, CA 94122
1309 19th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1309-1311 19th Ave in the Central Sunset neighborhood is a two-unit, two-story duplex built in 1906, currently owned by James D & Heidi Tzortzis RV. The building has undergone significant renovations and repairs over the past few years, most notably in 2021 when substantial work was completed including kitchen remodels in both units, electrical renovations, installation of new windows, and addressing dry rot issues in the back wall. These improvements were accompanied by complete plumbing updates, including a new furnace and ducting installation in December 2021, and extensive plumbing work that included sewer line updates, storm drainage, and new utility lines.

Prior to these improvements, the building experienced several concerning issues between 2019-2020, including multiple housing code violations related to heating, fire safety, electrical systems, and window conditions. There were documented problems with inadequate heating, window maintenance, and fire safety compliance that were officially abated by January 2021. The property has a history of plumbing and mechanical system updates, including a sewer repair in 2007, water heater replacement in 2019, and various furnace-related work between 2019-2021. More recently, there have been minor building-related complaints in 2021-2022 regarding construction noise and utility issues, though these have been resolved.

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

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Risk rating

How 1309-1311 19Th 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
31stpercentile

Out of 814 buildings in this neighborhood, 562 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
80%
No DBI
violation
20%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

DBI complaint rate, owner's portfolio

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

12-Month risk forecast
Low failure risk 20%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1309-1311 19Th Ave apartment reviews

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On the map

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The story over time

1309-1311 19Th Ave event timeline

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

2026
311 Request Mar 10
311 service request
Encampment

See all 16 events

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

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Every record we have

Full data for 1309-1311 19Th Ave apartments

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

Side by side

How 1309-1311 19Th 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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