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3420-3422 Mission St

Bernal Heights, SF 94110 6660005 2 units · 2 fl · 1907

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 3420-3422 Mission 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC3
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 built1907
Total area2,530 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6660005
Ownership

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

Owner name
Knysh Michael A
Mailing address
P.o. Box 231003 Encinitas CA 92023
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.

3422 Mission St, San Francisco, CA 94110
3420 Mission St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 3420-3422 Mission Street in Bernal Heights is a two-story, multi-family residential building constructed in 1907, containing two residential units and a commercial space, currently owned by Michael A. Knysh. The building's maintenance history reveals several significant infrastructure issues, particularly during the mid-2000s when there were multiple sewer and drainage problems, including incidents of backup into the basement that created unsanitary conditions. These issues, which prompted several notices of violation in 2006, continued through 2009 before being resolved. More recent maintenance concerns include a 2020 complaint about non-functional stove burners and a 2013 report regarding peeling paint and potential lead hazards, with the latter being abated in 2014.

The building's records show multiple fire safety inspections and violations between 2008 and 2014, with concerns ranging from combustible materials to operating without a permit, though all noted violations were eventually corrected or closed. In recent years, there have been ongoing issues with street and sidewalk cleanliness around the property, with multiple 311 calls in 2024 regarding garbage, debris, and graffiti, though many of these were resolved through various city departments. The property's historical permit records show several street space and sidewalk permits being issued, with the most recent being in 2014, suggesting regular attention to public space maintenance. While the building has experienced various maintenance challenges over the years, there are no active violations or recent major structural issues on record.

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

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Risk rating

How 3420-3422 Mission 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
32th percentile

Out of 1276 buildings in this neighborhood, 868 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
64%
No DBI
violation
36%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building size

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

12-Month severity forecast
No violation 51.2%
Moderate concern 40.2%
Severe concern 8.6%
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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On the map

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The story over time

3420-3422 Mission St event timeline

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

2026
DBI Complaint Feb 27
Date last observed: 26-feb-26; time last observed: 11:26am; identity of person performing the work: shorecal engineering; unit: 17 30th st; exact location: common area; building type: commercial/business work w/o permit; work beyond scope of permit; structural problems; work being done in dangerous manner; ; additional information: excavation causing vibrations (objects falling) in neighboring properties;
Code Enforcement Section
DBI ComplaintFeb 26
No permit. work being done in dangerous manner. doing excavation work. ignoring neighbors concerns verbally and not responding to email and voice mail.

See all 4 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3420-3422 Mission St apartments

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

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