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3860-3862 23Rd St

Noe Valley, SF 94114 3627020 2 units · 2 fl · 1900

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 Noe Valley
At or below average
avg 1.2
0
FewerMore

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

Rent & eviction protection

Is 3860-3862 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1900
Total area2,138 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3627020
Ownership

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

Owner name
Heilmann Michael A & Sisto
Mailing address
3860 23rd St San Francisco CA 94114
Last sale
072407

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.

3862 23rd St, San Francisco, CA 94114
3860 23rd St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 3860-3862 23rd Street in Noe Valley, owned by Michael A. Heilmann and Sisto, is a two-story flats and duplex structure built in 1900. The building has undergone several significant improvements over the years, including a comprehensive window replacement project in 2007 that involved installing six new wood-clad windows in the front and eight vinyl windows in the rear. Other major maintenance work includes a furnace change-out in 2010 and roofing work in 2000, though the roofing permit expired. More concerning was the 1992 foundation work involving retaining walls and front steps, which were also tied to garage modifications.

The property has faced various maintenance and safety issues in recent years, with an open report from March 2023 documenting a collapsed sidewalk condition. Parking-related challenges have been frequent, with multiple citations issued for driveway blocking between 2023 and 2025, including incidents in November 2023 and April 2024. The building's immediate surroundings experienced several infrastructure and maintenance issues in 2022, including a manhole cover problem that was promptly addressed, and there was one reported instance of illegal short-term rental activity at the property that was investigated and abated. The location has required attention to street cleaning matters, with several incidents of garbage and debris requiring municipal intervention, though these were all promptly resolved through city services.

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

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Risk rating

How 3860-3862 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
72th percentile

Out of 1879 buildings in this neighborhood, 526 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 84.8%
Moderate concern 9.7%
Severe concern 5.5%
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

3860-3862 23Rd St event timeline

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

2026
311 Request Feb 06
Blocking driveway cite tow
Parking Enforcement
311 RequestJan 22
Blocking driveway cite tow

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3860-3862 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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