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3430-3432 21St St

Eureka Valley/Dolores Heights, SF 94110 3607016 4 units · 2 fl · 1900

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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3430-3432 21St 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
4 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units4
Floors2
Year built1900
Total area3,200 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3607016
Ownership

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

Owner name
Stroh Donald G Jarrett Nich
Mailing address
3622 21st St San Francisco CA 94114
Last sale
000000

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.

3432 21st St, San Francisco, CA 94110
3430 21st St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The two-story multi-family residential building at 3430-3432 21st Street, located in the Eureka Valley/Dolores Heights neighborhood, is a 4-unit apartment building constructed in 1900. The property has undergone several significant improvements and maintenance work over the past two decades, with the most notable recent work being a completed soft-story retrofit in 2016 that included the installation of a new steel moment frame and foundations at a cost of $75,000, plus a complete sewer line replacement in 2017. The building demonstrated proactive maintenance through various infrastructure improvements, including a significant 2001 reroofing project, 2008 gas line pressure testing, and multiple sidewalk and street space repairs in the 2000s.

The property has experienced several housing-related issues in the past, most notably in early 2002 when multiple building violations were filed regarding stair repairs and permit requirements, though these were all abated by July 2002. There was also a routine inspection in 2007 that resulted in stair repair requirements. More recently, there was a tenant complaint about a dirty alley/breezeway in 2017, which was marked as not active. The building's maintenance record includes various plumbing and electrical permits, such as a 2004 electrical service upgrade and multiple sewer-related repairs. The property is classified as a Tier 3 soft-story retrofit, with the required seismic improvements completed and a Certificate of Final Completion issued. Recent external maintenance has included responses to tree damage in March 2023 and various cleaning requests through 311 services, indicating ongoing attention to environmental and safety concerns.

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

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Risk rating

How 3430-3432 21St 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
42th percentile

Out of 1278 buildings in this neighborhood, 741 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building permits, owner's portfolio

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

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 44.9%
Moderate concern 19.9%
Severe concern 35.1%
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

3430-3432 21St St event timeline

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

2025
Electrical Permit Oct 22
Replace six federal pacific sub-panels to six new siemens sub panels
Complete

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

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Every record we have

Full data for 3430-3432 21St St apartments

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

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