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4 San Antonio Pl

Telegraph Hill, SF 94133 0132009 4 units · 3 fl · 1907

A handful of records on file over the last seven years, and our model sees a moderate chance of more 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 Telegraph Hill — not a forecast
At or below average
avg 1.2
1
FewerMore

This building has 1 novs (7y), at or below the Telegraph Hill average of 1.2.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 4 San Antonio Pl 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 1907
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 1907
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
Floors3
Year built1907
Total area3,713 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0132009
Ownership

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

Owner name
Mailing address
524 Vallejo St San Francisco CA 94133
Last sale
April 12, 2021

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.

524 Vallejo St, San Francisco, CA 94133
526 Vallejo St, San Francisco, CA 94133
4 A San Antonio Pl, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-story multi-family residential building at 4 San Antonio Place, located in Telegraph Hill, was built in 1907 and contains 4 units. The property has undergone several significant modifications and faced various regulatory challenges in recent years. Most notably, in 2023, a permit was filed to address compliance with a city planning enforcement notice regarding unit mergers. The building has received substantial safety upgrades, including the installation of a fire sprinkler system (2015), backflow prevention (2021), and elevator electrical work (2015). Historical issues included multiple lead paint violations in 2010, which were resolved by 2011.

Recent complaints and modifications suggest ongoing management attention to the building's needs. There have been several complaints about building conditions, including inadequate exterior maintenance in 2010 and work beyond the scope of approved permits in 2022. A significant planning application is currently under review to address unauthorized unit mergers and modifications, with the owner seeking to reinstate 3 dwelling units while complying with current regulations. The property has experienced multiple fire safety system activations, though all were determined to be non-hazardous, including false alarms and detector malfunctions.

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

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Risk rating

How 4 San Antonio Pl'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
13thpercentile

Out of 684 buildings in this neighborhood, 595 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
48%
No DBI
violation
52%
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.

DBI tenant complaints (past 7 years)

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

12-Month risk forecast
Moderate failure risk 52%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

4 San Antonio Pl apartment reviews

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On the map

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The story over time

4 San Antonio Pl event timeline

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

2026
311 Request Jun 29
Garbage and debris
mattress
Building PermitMay 15
Work as needed to sastify nov 202652191, planning case 2024-011561 cua and 2022-000583enf, bos file 260021 to revert back to 4 units. add kitchen to units 4, 4a, and 524. add fire rate doors and walls as necessary.

See all 18 events

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

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Every record we have

Full data for 4 San Antonio Pl apartments

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

Side by side

How 4 San Antonio Pl compares to the neighborhood

This building against comparable properties in Telegraph Hill. 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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