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2101-2105 21St Ave

Parkside, SF 94116 2196001 3 units · 2 fl · 1938

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 Parkside
At or below average
avg 0.8
0
FewerMore

This building has 0 novs (7y), at or below the Parkside average of 0.8.

Rent & eviction protection

Is 2101-2105 21St 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 1938
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH1
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
Floors2
Year built1938
Total area2,975 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2196001
Ownership

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

Owner name
Alexander & Marie Gottas Tr
Mailing address
151 Sylvan Dr San Francisco CA 94132
Last sale
032498

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.

2105 21st Ave, San Francisco, CA 94116
2101 21st Ave, San Francisco, CA 94116
Augrented Insights
Initial analysis

The two-story multi-family residential building at 2101-2105 21st Avenue in the Parkside neighborhood, owned by Alexander & Marie Gottas Trust, was constructed in 1938 and contains three units, including a retail space. The property has undergone several significant improvements over the years, including a 2018 installation of an automatic door opener for accessibility compliance at the retail store entrance, a 2014 re-roofing project, and the addition of composite siding on the back of the building in 2010. The retail portion of the property has a permitted grocery use (DBA Uncle Joe) with Type 21 ABC license, and in 2022, an administrative permit was issued for a certified ventless fryer installation. A three-compartment sink was installed in 2015, suggesting food service capabilities.

Recent activity at the property has been marked by numerous 311 calls in early 2025, primarily related to garbage and debris issues, with multiple reports of overflowing city garbage cans and other waste-related concerns, though many have been resolved promptly. There was one fire safety complaint in January 2017 regarding blocked exits, which was corrected within two days, along with two smoke detector activations recorded with no injuries. The building's maintenance history shows regular upkeep, with major systems being addressed through appropriate permits, including window replacements (1987) and various modernization efforts. The property has experienced one documented tenant buyout in March 2022, with a payout of $47,000 to one tenant, though it is unclear how this relates to the current unit configuration and occupancy status.

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

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Risk rating

How 2101-2105 21St 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

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
35th percentile

Out of 255 buildings in this neighborhood, 166 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
63%
No DBI
violation
37%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 60.8%
Moderate concern 28.9%
Severe concern 10.3%
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

2101-2105 21St Ave event timeline

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

2025
311 Request Oct 16
Garbage and debris
furniture
Fire IncidentMar 12
733 Smoke detector activation due to malfunction

See all 7 events

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

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Every record we have

Full data for 2101-2105 21St Ave 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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