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3017 20Th St

Inner Mission, SF 94110 4085037 3 units · 3 fl · 1900

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
3
FewerMore

This building has 3 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 3017 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 1900
2 or more units
3 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.

Building characteristics
Units3
Floors3
Year built1900
Total area4,200 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4085037
Ownership

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

Owner name
Ballesteros Dominador V
Mailing address
3017 20th St San Francisco CA 94110
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit multi-family residential building at 3017 20th Street in San Francisco's Inner Mission neighborhood, owned by Dominador V Ballesteros, has a significant and concerning history since its construction in 1900. Most recently, in January 2023, the building experienced major structural fire damage, leading to active code enforcement proceedings. The building has faced multiple serious safety and habitability issues in recent years, including numerous violations filed in January 2017 relating to sanitation, heating, fire safety, security requirements, and water heater problems, many of which remain active or were only recently addressed. A concerning pattern of maintenance and safety issues is evident throughout the building's history, including problems with heating systems, fire safety compliance, and structural elements like stairs and decks.

The building's documented history shows recurring issues with basic maintenance and safety requirements. In 2021, a water heater replacement was attempted, though the permit ultimately expired, and previous permits show various repairs and improvements ranging from deck replacement (2009) to fire damage repairs (1999). More recent concerns include sewage back-up discharge incidents reported in November 2024, multiple fire code violations documented in 2023, and a history of pest infestations and sanitation problems as evidenced by multiple complaints and violation notices. The property has undergone several important repairs and improvements over the years, including closet installations (1994), window and door work (1984), and various code compliance measures (1983), but persistent maintenance issues suggest ongoing challenges with building upkeep and habitability standards.

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

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Risk rating

How 3017 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
16th percentile

Out of 2380 buildings in this neighborhood, 1999 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
38%
No DBI
violation
62%
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.

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

NOV rate, owner's portfolio

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

12-Month severity forecast
No violation 26.5%
Moderate concern 56.5%
Severe concern 17.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

3017 20Th St event timeline

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

2026
Building Permit Jun 02
Fire repairs to existing units and nov resolution (interior and exterior).
$769,000 · Filed
Building Violation (NOV)May 27
A blue tarp appears torn and is flapping in the wind, partially covering what looks like a wood-framed structure beneath tarp.

See all 13 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3017 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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