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3915 23Rd St

Noe Valley, SF 94114 3653044 2 units · 2 fl · 1902

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 3915 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 1902
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 built1902
Total area2,496 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3653044
Ownership

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

Owner name
Twal Sameh S & Mary S
Mailing address
4262 Cesar Chavez St San Francisco CA 94131
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit multifamily residential building at 3915 23rd Street in Noe Valley, owned by Twal Sameh S & Mary S, is a two-story structure built in 1902. The building has undergone several significant modifications over the years, with the most notable being an unauthorized construction incident in late 2003 that led to multiple violations. These violations, filed in November 2003, involved an unauthorized rear room addition and questions concerning the legality of an existing ground-floor kitchen. The violations remained unresolved until September 2013. Following this, legitimate improvements were made, including a 2003-2004 permitted horizontal addition that rebuilt a second-floor laundry room and added a new third-floor balcony, along with electrical work to install new switches, lights, and receptacles. More recent maintenance includes a reroofing project in 2015 costing $10,000.

The property has experienced typical urban neighborhood issues over the years, including three 311 calls in recent years: a non-offensive graffiti incident on a signal box in December 2023, a sidewalk parking violation in January 2019 that resulted in a citation, and a pavement defect reported in May 2016. The building's historical records show various improvements and modifications consistent with standard residential maintenance and upgrades, though there was a notable period of regulatory non-compliance in 2003-2013 that has since been resolved.

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

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Risk rating

How 3915 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
67th percentile

Out of 1879 buildings in this neighborhood, 620 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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 permits, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 82.9%
Moderate concern 9.8%
Severe concern 7.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

3915 23Rd St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 3915 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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