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1048 Potrero Ave

Inner Mission, SF 94110 4153006 4 units · 2 fl · 1923

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 Inner Mission — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.7.

Rent & eviction protection

Is 1048 Potrero 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 1923
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.

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 1923
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
Units4
Floors2
Year built1923
Total area3,392 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4153006
Ownership

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

Mailing address
Tan Ji Win 1048 Potrero Ave Apt 1 San Francisco CA 94110
Last sale
September 10, 1992

Landlord portfolio

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

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Augrented Insights
Initial analysis

1048 Potrero Avenue is a two-story, four-unit multi-family residential building constructed in 1923, currently owned by Mary Dong Mei Tan Huang. The property has undergone several significant improvements over the past few decades, with the most recent major work being a comprehensive roof replacement in 2024 that included new flashing, scupper drain installations, and modified bitumen materials at a cost of $12,000. The building has had various maintenance and safety improvements, including plumbing work in 2010 involving sewer line and house trap replacement, stair repairs in 2000, and the installation of aluminum windows in 1986.

The building experienced a cluster of safety violations in 2000 that were promptly addressed by September of the same year, including issues with self-closing doors, egress obstructions, and stairs. A health and safety routine inspection was conducted in 2011, and a combustible materials issue was reported and corrected in June 2012. More recently, between 2024 and 2025, there have been multiple 311 calls regarding the surrounding area, primarily related to street cleaning, graffiti, and urban issues such as encampments. While these recent reports indicate some exterior maintenance needs in the vicinity of the building, they are primarily related to public space and infrastructure rather than the building itself. The property has maintained compliance with building codes since the 2000 violations were resolved, with no active violations or open complaints on record.

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

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Risk rating

How 1048 Potrero 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
34thpercentile

Out of 2380 buildings in this neighborhood, 1571 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
56%
No DBI
violation
44%
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 location

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

12-Month risk forecast
Moderate failure risk 44%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

1048 Potrero Ave event timeline

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

2024
Building Permit Jun 06
Remove (e) built up roof. replace all roof flashing. scupper drain, vent pipe flashing, roof flashing vents. install one layer of #28 lb figerglass base sheet. torch down one layer of modified bitumen base sheet and one layer of modified bitumen graniular. apply one coat of aluminim roof coating.
$12,000 · Complete

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1048 Potrero Ave apartments

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

Side by side

How 1048 Potrero Ave compares to the neighborhood

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