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3001-3005 20Th St

Inner Mission, SF 94110 4085001 3 units · 3 fl · 1900

This building has more problems than most buildings in this neighborhood. 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
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 3001-3005 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 area3,900 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4085001
Ownership

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

Owner name
Waconda Trust
Mailing address
Beckwith Katharine,trustee 121 Varennes St San Francisco CA 94133
Last sale
031396

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.

3003 20th St, San Francisco, CA 94110
3005 20th St, San Francisco, CA 94110
3001 20th St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 3001-3005 20th Street is a three-unit, three-story multi-family residential building located in San Francisco's Inner Mission neighborhood, currently owned by Waconda Trust and built in 1900. The building has undergone several significant maintenance and repair works over the past two decades, most notably in 2024 with a sewer line repair and in 2022 with an electrical service upgrade. A substantial renovation in 2016 addressed both ground floor bathroom and second floor sunroom issues, including footing replacement and dry rot repairs, costing approximately $12,000. However, recent concerning developments emerged in 2024, with a building complaint filed regarding unauthorized construction work related to a laundromat installation in the main building, reportedly conducted by the owner without proper permits. This situation is particularly troubling considering the historical context of the building's complaints, which include a 1994 report of rat infestation, water leakage issues in 1996, and multiple building inspection records showing ongoing maintenance concerns.

The property has experienced a series of fire safety system activations, though all incidents recorded were either unintentional or due to system malfunction, including several smoke detector activations and a gas leak incident. The building and surrounding area have generated numerous 311 calls between late 2024 and early 2025, primarily concerning garbage and debris on the street, for which multiple cases were resolved. While historical permits show various maintenance work, such as window and lightwell repairs in 2001 and street space improvements in 2010, the most pressing current concern appears to be the ongoing unpermitted work related to the commercial space, which has reportedly been vacant for several years.

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

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Risk rating

How 3001-3005 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
26th percentile

Out of 2380 buildings in this neighborhood, 1761 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
50%
No DBI
violation
50%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood location

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

12-Month severity forecast
No violation 50.1%
Moderate concern 38.9%
Severe concern 11.0%
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

3001-3005 20Th St event timeline

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

2026
311 Request Jun 18
Garbage and debris
mattress
311 RequestJun 15
Garbage and debris

See all 8 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3001-3005 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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