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3910 23Rd St

Noe Valley, SF 94114 3625007 6 units · 2 fl · 1963

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 Noe Valley
Above average
avg 1.2
4
FewerMore

This building has 4 novs (7y), above the Noe Valley average of 1.2.

Rent & eviction protection

Is 3910 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 1963
2 or more units
6 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
Units6
Floors2
Year built1963
Total area4,210 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3625007
Ownership

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

Owner name
Wong Fmly Tr
Mailing address
Wong Alvin & Susan Ttees 312 Gold Mine Dr 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 Wong Family Trust owns this two-story, six-unit multi-family residential building located at 3910 23rd Street in Noe Valley, constructed in 1963. The property has undergone several significant maintenance and upgrade projects, with the most recent electrical work completed in June 2023 involving the replacement of seven 70a/2p sub-main breakers and all associated sub-panel breakers, including transitioning from Federal Pacific electric components to newly manufactured breakers. Earlier in 2023, a booster fan was installed, and in 2014, the building received a reroofing investment of $7,000.

The building experienced some regulatory issues in early 2023, when a complaint was filed on January 16 regarding improper dryer ventilation and moisture exhaust ducting, which resulted in a notice of violation. However, these violations were promptly addressed and abated by March 6, 2023. The property's inspection history shows regular oversight, with routine apartment house inspections conducted in 2001 and 2007, both of which were resolved without noted ongoing issues. A relatively minor external issue was reported in November 2019 concerning loose garbage on the street, which was handled by the Department of Public Works. Overall, the building's recent maintenance record suggests active ownership engagement in system upgrades and prompt resolution of compliance issues.

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

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Risk rating

How 3910 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
26th percentile

Out of 1879 buildings in this neighborhood, 1390 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

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 63.2%
Moderate concern 21.5%
Severe concern 15.3%
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

3910 23Rd St event timeline

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

2023
Electrical Permit Jun 21
Change seven existing 70a/2p sub-main breakers to new breakers, replace all federal pacific electric sub-panel the breakers to newly manufactured federal pacific electric breakers, total exchange 7 x 70m breakers; and 7 x all sub-panel breakers.
Complete
Electrical PermitFeb 28
Install booster fan

See all 7 events

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

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Every record we have

Full data for 3910 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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