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3745 23Rd St

Noe Valley, SF 94114 3649030 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 3745 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
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 built1900
Total area3,936 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3649030
Ownership

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

Owner name
Markowitz Michael C
Mailing address
3747 23rd St San Francisco CA 94114
Last sale
051500

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-unit residential building at 3745 23rd Street in Noe Valley, owned by Michael C Markowitz, has experienced several significant maintenance issues since its construction in 1900. A notable historical incident occurred in 1998 when severe water damage from a roof leak was reported, with tenants indicating the problem had persisted for over a year before being addressed. In 2007, there was work performed to extend footings to match those of an adjacent property, though this permit has since expired. The building's plumbing system required attention in 2014 when the city's cleanout was repaired or replaced, with this work being completed.

Recent activity at the property, from late 2023 and throughout 2024, has primarily involved external maintenance issues rather than directly affecting the building's habitability. This includes multiple municipal services addressing street cleaning, debris removal, and infrastructure maintenance tasks such as sewer service requests and catch basin maintenance. The most recent building-related issue was a sewer service request that was resolved in December 2024. The property has shown consistent attention to maintaining external cleanliness and addressing municipal infrastructure needs, with all recent 311 calls being closed and resolved by the respective agencies. While the building's maintenance history shows periodic upkeep and repairs, the majority of recent work has focused on external services rather than internal building systems.

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

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Risk rating

How 3745 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
49th percentile

Out of 1879 buildings in this neighborhood, 958 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
76%
No DBI
violation
24%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 64.6%
Moderate concern 25.1%
Severe concern 10.3%
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

3745 23Rd St event timeline

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

2025
311 Request Oct 24
Garbage and debris
other loose garbage debris yard waste
311 RequestJun 21
Not offensive

See all 6 events

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

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Every record we have

Full data for 3745 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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