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1500-1504 20Th St

Potrero Hill, SF 94107 4067010 3 units · 3 fl · 1907

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 1500-1504 20Th St 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
3 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
Units3
Floors3
Year built1907
Total area4,860 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4067010
Ownership

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

Owner name
Fiore3 Llc
Mailing address
C/o Fiore-roche Lisa M, Mem 238 Townsend St San Francisco CA 94107
Last sale
011519

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.

1504 20th St, San Francisco, CA 94107
1502 20th St, San Francisco, CA 94107
1500 20th St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 1500-1504 20th Street in Potrero Hill, owned by Fiore3 LLC, has undergone significant improvements and maintenance since 2015, particularly focused on unit modernization and safety upgrades. Recent major renovations include a comprehensive 2017 remodeling of the third-floor unit (#3) involving kitchen and bathroom upgrades, installation of new windows, and electrical work including a 100A subpanel and extensive rewiring. The building has seen substantial infrastructure improvements, including window replacements (2015), bathroom ADA compliance work, structural enhancements (replacing interior bearing partitions with beams), and multiple plumbing upgrades including furnace replacements and new tankless water heaters.

The property has maintained a routine inspection history with regular check-ups by Housing Inspection Services from 1999 to 2014, with no active violations noted. Recent building systems improvements have focused on safety and accessibility, including the addition of smoke detectors and fire-rated assemblies maintenance. Two minor fire-related incidents were recorded (false alarm and unintentional detector activation) with no civilian injuries. Recent external conditions have included multiple reports of graffiti and some public cleanliness issues in the vicinity of the property during 2023-2024, though these appear to be street-level concerns rather than building-specific issues. The property's maintenance record shows active management and investment in building improvements, with most recent permits focusing on unit modernization and system upgrades.

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

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Risk rating

How 1500-1504 20Th St'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
73th percentile

Out of 726 buildings in this neighborhood, 196 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Neighborhood location

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

Neighborhood (ZIP code)

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

Building age

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

12-Month severity forecast
No violation 55.3%
Moderate concern 34.8%
Severe concern 9.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1500-1504 20Th St event timeline

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

2025
311 Request Nov 01
Curb or curb ramp defect
Sidewalk and Curb

See all 2 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1500-1504 20Th St apartments

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

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