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33-35 21St Ave

Lake Street, SF 94121 1337005 2 units · 2 fl · 1916

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 Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 33-35 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 1916
2 or more units
2 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
Units2
Floors2
Year built1916
Total area3,398 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1337005
Ownership

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

Owner name
Tour-Sarkissian Revoc Tr
Mailing address
Tour-sarkissian Paul & Tani 33 21St Ave San Francisco CA 94121
Last sale
050319

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.

33 21st Ave, San Francisco, CA 94121
35 21st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 33-35 21st Avenue is a two-unit, two-story multi-family residential building located in the Lake - The Presidio neighborhood, constructed in 1916 and currently owned by the Tour-sarkissian Revocable Trust. The building has undergone several significant maintenance and improvement projects over the years, with the most recent major renovation being the addition of a master bathroom and closet in 2017-2018, which included new plumbing and electrical work. Infrastructure improvements include a complete sewer line replacement in 2013, multiple roofing replacements (most recently in 2011 costing $9,670), and substantial electrical upgrades including a 200-amp service installation in 2003.

The building's history shows attention to safety with earthquake retrofitting work completed in 1990, including bolting the sill plate to the foundation. While there have been multiple fire-related incidents recorded (including a building fire, smoke odors, and detector activations), none resulted in civilian injuries, and many were related to system malfunctions or false alarms. The property has undergone various renovations and repairs, including a significant deck and stair construction project in 2001-2004, though some permits from this period expired before completion. Recent utilities service calls (2024) have been addressed promptly, including a sewer service request and multiple utility-related inquiries. The building appears to be actively maintained, with most recent permits showing proper completion and inspection, though there was one notable permit violation in 2003 related to unauthorized foundation work that was quickly resolved.

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

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Risk rating

How 33-35 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
63th percentile

Out of 660 buildings in this neighborhood, 244 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 83.4%
Moderate concern 12.0%
Severe concern 4.6%
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

33-35 21St Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 33-35 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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