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3151-3155 23Rd St

Inner Mission, SF 94110 3641040 4 units · 2 fl · 1880

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 Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 3151-3155 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 1880
2 or more units
4 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
Units4
Floors2
Year built1880
Total area4,264 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3641040
Ownership

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

Owner name
Fong Richard D S & Kerri Ma
Mailing address
2824 24th St San Francisco CA 94110
Last sale
060900

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.

3155 23rd St, San Francisco, CA 94110
3151 23rd St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The building at 3151-3155 23rd Street in San Francisco's Inner Mission neighborhood is a two-story multi-family residential structure built in 1880, containing four units plus ground floor commercial space, currently owned by Richard D. Fong and Kerri Ma. The property has undergone several significant modifications since the mid-1980s, including foundation work and staircase replacement in 1985, and multiple attempts to establish a coin-operated laundry facility in the early 1990s. While most building permits from 1988-2009 are now expired or completed, the property has experienced notable maintenance and safety issues, particularly in a serious 1997 complaint that documented rodent and roach infestations, severe water damage, non-functional fire alarms, and plumbing problems, though these were resolved by August 1998.

Recent building activity is primarily centered around external maintenance, with multiple 311 calls in late 2024 regarding garbage and debris on the street and sidewalk. While these calls were consistently resolved, they indicate ongoing issues with waste management in the immediate vicinity. A 2009 housing inspection complaint marked as "routine" was resolved by February 2010. Of particular note, the property was briefly leased to the Mission Mental Health Clinic for approximately three years, though this arrangement has since ended. The building's historical records show regular maintenance and improvement efforts by various owners over the decades, with the most recent significant building permit related to street space and sidewalk repair issued in 2009. All records indicate that there have been no recent fire incidents or civilian injuries associated with the building.

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

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Risk rating

How 3151-3155 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
57th percentile

Out of 2380 buildings in this neighborhood, 1023 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
67%
No DBI
violation
33%
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.

Neighborhood location

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

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month severity forecast
No violation 61.9%
Moderate concern 24.5%
Severe concern 13.6%
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

3151-3155 23Rd St event timeline

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

2026
311 Request Jun 04
Homelessness and supportive housing
housing homeless request for service
311 RequestMay 26
Garbage and debris

See all 5 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3151-3155 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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