Free SF apartment background check

1800 23Rd St

Potrero Hill, SF 94107 4162034 4 units · 2 fl · 1961

This building has significantly more problems than most nearby buildings. 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 1800 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 1961
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
NC1
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 built1961
Total area2,900 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4162034
Ownership

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

Owner name
Donald Geller Trust
Mailing address
Donald Geller Trustee 2843 Webster St Apt 303 San Francisco CA 94123
Last sale
061499

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.

890 Arkansas St, San Francisco, CA 94107
1800 23rd St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The two-story multi-family residential building at 1800 23rd Street in Potrero Hill, owned by the Donald Geller Trust, was constructed in 1961 and contains four units. The property has undergone several significant improvements over the years, with the most recent and substantial renovations occurring in January 2023, including a complete bathroom and kitchen remodel, electrical upgrades including a 100-amp subpanel replacement, and various plumbing improvements costing $25,000. The building has participated in multiple maintenance and compliance efforts, such as a comprehensive window replacement project in 2004 and an important code compliance upgrade completed in 1987 following an expired permit from 1984.

The property faced serious safety concerns in 2011 when a routine inspection revealed multiple violations, including fire safety issues (such as fire extinguisher maintenance and egress obstructions), security deficiencies (like door viewer requirements), and interior surface problems. These violations were systematically addressed and abated by October 2013. Earlier records show a significant plumbing issue in 1999 involving sewage leakage affecting a downstairs business. More recent permit activity includes window work to match original aluminum windows and an ABC referral for Type 21. While there have been numerous 311 calls in the surrounding area during 2024, primarily related to parking issues and street cleaning, these are generally external to the building itself. The property has maintained active compliance with building codes and safety requirements since the resolution of the 2011 violations, with no active building violations on record.

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

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Risk rating

How 1800 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
18th percentile

Out of 726 buildings in this neighborhood, 595 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

Neighborhood location

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

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 40.7%
Moderate concern 47.8%
Severe concern 11.6%
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

1800 23Rd St event timeline

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

2026
311 Request Jan 31
Blocked sidewalk
lime standing scooter

See all 4 events

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

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Every record we have

Full data for 1800 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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