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2236-2238 23Rd St

Potrero Hill, SF 94107 4158035 2 units · 2 fl · 1906

This building has more problems than most buildings in this neighborhood. 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 2236-2238 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 1906
2 or more units
2 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
Units2
Floors2
Year built1906
Total area2,580 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4158035
Ownership

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

Owner name
Riegler Casey R
Mailing address
2236 23rd St San Francisco CA 94107
Last sale
060216

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.

2236 23rd St, San Francisco, CA 94107
2238 23rd St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The two-unit residential building at 2236-2238 23rd Street in Potrero Hill, owned by Riegler Casey R, is a two-story flats and duplex structure built in 1906. The property experienced a significant fire incident in May 2010, which led to building code violations and subsequent remedial work costing $150,000 to repair fire damage, replace windows, and upgrade electrical systems. All repair work was completed by May 2012, including the installation of new furnaces, comprehensive bathroom and kitchen remodels, and electrical system upgrades throughout both units. The building has undergone multiple improvements over the years, including siding replacement and stair safety upgrades in 2011, and earlier modifications in 2006 that involved electrical system upgrades and interior improvements.

Recent activity at the property has primarily consisted of external maintenance and neighborhood issues, with various 311 calls in 2024 regarding street conditions, parking violations, and sanitation matters in the vicinity of the building. A tenant buyout occurred at 2238 23rd Street in January 2019, involving one tenant receiving $6,627. The building currently shows no active violations or complaints, though there is one open 311 call from July 2024 regarding a pavement defect that remains unresolved as of October 2023. The property's historical maintenance record suggests regular upkeep and responsiveness to building code requirements, particularly following the significant fire incident.

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

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Risk rating

How 2236-2238 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
21th percentile

Out of 726 buildings in this neighborhood, 574 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
59%
No DBI
violation
41%
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.

Neighborhood location

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

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 55.4%
Moderate concern 37.9%
Severe concern 6.8%
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

2236-2238 23Rd St event timeline

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

2025
DBI Complaint Oct 06
Sewage water has been coming out of this building and going to the neighbor's building
Housing Inspection Services

See all 6 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2236-2238 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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