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2341-2345 Polk St

Russian Hill, SF 94109 0547002A 8 units · 3 fl · 1923

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
At or below average
avg 1.9
1
FewerMore

This building has 1 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 2341-2345 Polk 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 1923
2 or more units
8 units
Property type
Multi-Family Residential
Zoning
POLK
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
Units8
Floors3
Year built1923
Total area12,100 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0547002A
Ownership

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

Owner name
Der Henry C H & Florence C
Mailing address
John J. Dito & Son 466 Green St Ste 302 San Francisco CA 94133
Last sale
051997

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.

2341 Polk St, San Francisco, CA 94109
2345 Polk St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The 8-unit multi-family residential building at 2341-2345 Polk Street in Russian Hill, owned by Henry C and Florence C Der, was constructed in 1923 and stands three stories tall. The building has undergone significant safety and maintenance upgrades in recent years, including a mandatory fire horn upgrade in 2024 ($43,194), electrical system improvements such as circuit breaker panel replacements and sub-panel updates, and seismic strengthening work including voluntary rear bay window reinforcement ($69,000) and completion of Tier 4 soft-story retrofitting. The property experienced a notable infestation of mice in early 2023, with complaints from multiple tenants about persistent rodent activity. More recently, in 2023-2024, there were several compliance issues addressed including a boiler permit renewal matter and various building maintenance concerns, all of which were officially abated by October 31, 2023.

The building's maintenance history shows regular updates to critical systems, including a new water heater installation in 2014 and multiple electrical system upgrades. Recent building permits indicate ongoing attention to structural elements, such as exterior stairs repairs due to dry rot completed in 2024 ($5,000). The property has experienced multiple fire alarm system activations, though none resulted in injuries or confirmed incidents. A cluster of building violations from 2003, primarily related to heating system requirements, lead paint concerns, and stairs maintenance, were all abated by late 2023. The building's location has faced typical urban challenges, as evidenced by recent 311 calls regarding various municipal issues, including debris, tree damage, and environmental health concerns, though these are primarily external to the building itself. Separate inquiries regarding a possible basement illegal unit were documented in 2019, though this issue appears to have been resolved.

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

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Risk rating

How 2341-2345 Polk 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
17th percentile

Out of 1133 buildings in this neighborhood, 940 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
35%
No DBI
violation
65%
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 size

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 21.6%
Moderate concern 43.8%
Severe concern 34.6%
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

2341-2345 Polk St event timeline

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

2025
DBI Complaint Jul 21
Date last observed: 20-jul-25; floor: top of fro; exact location: main bldg; building type: residence/dwelling ; additional information: address numbers ¿2341¿ don¿t contrast with their background. additionally, ¿3¿ is not legible/readable. seems to be partially chipped off ;
Building Inspection Division

See all 10 events

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

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Every record we have

Full data for 2341-2345 Polk St apartments

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

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