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1902-1904 23Rd St

Potrero Hill, SF 94107 4161025 2 units · 3 fl · 1993

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 Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 1902-1904 23Rd 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 1993
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors3
Year built1993
Total area3,357 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4161025
Ownership

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

Owner name
Gilbert A Kohn Trust
Mailing address
Gilbert A Kohn, Ttee 401 E Linton Blvd #628 Delray Beach FL 33483
Last sale
010312

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.

1904 23rd St, San Francisco, CA 94107
1902 23rd St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The three-story, two-unit residential building at 1902-1904 23rd Street in Potrero Hill, owned by the Gilbert A Kohn Trust, was constructed in 1993 following the demolition of a single-family dwelling on the site in 1990. The property has experienced recurring issues with water-related damage and deterioration, particularly evident through multiple dry rot remediation projects between 2011 and 2015, which involved significant repairs to various building sections including the front facade, parapet walls, and window replacements totaling over $105,000 in permitted work. Historical complaints regarding water intrusion are documented from 1998 and 2005, though these issues were marked as abated.

Most concerning is an active building complaint from August 2023 regarding unpermitted work in the main building, specifically in the backyard area, which remains unresolved. The property has also generated numerous 311 calls in recent years, primarily relating to parking enforcement and general maintenance issues, though these are generally not related to major structural or safety concerns. A tenant buyout notice has been recorded for January 2024, offering $15,000 to one tenant at 1904 23rd Street, though the outcome of this offer is not yet known. The building's maintenance history shows regular attention to structural issues, though the persistent nature of dry rot repairs suggests ongoing challenges with moisture management in the building.

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

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Risk rating

How 1902-1904 23Rd 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
30th percentile

Out of 726 buildings in this neighborhood, 508 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.

Neighborhood location

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

DBI tenant complaints (past 7 years)

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 73.8%
Moderate concern 19.6%
Severe concern 6.6%
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

1902-1904 23Rd St event timeline

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

2023
311 Request Dec 06
Other reallocate
Noise Report - other reallocate
DBI ComplaintAug 11
Date last observed: 06-aug-23; time last observed: daytime; identity of person performing the work: renter; exact location: main bldg; building type: residence/dwelling work w/o permit; ; additional information: backyard;

See all 2 events

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

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Every record we have

Full data for 1902-1904 23Rd St 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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