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3173 23Rd St

Inner Mission, SF 94110 3641037 4 units · 3 fl · 1963

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 3173 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
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
Floors3
Year built1963
Total area4,158 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3641037
Ownership

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

Owner name
Martinez Mauricio & Gloria
Mailing address
3173 23rd St Apt 2 San Francisco CA 94110
Last sale
080520

Landlord portfolio

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

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Augrented Insights
Initial analysis

The four-unit, three-story multi-family residential building at 3173 23rd St in the Inner Mission, owned by Mauricio & Gloria Martinez, was constructed in 1963 and has experienced several significant issues over its history. Most notably, in 2004, the property was cited for multiple serious health and safety violations related to an illegal fifth dwelling unit in the garage area, which included life safety hazards such as inoperable heating, lack of smoke detectors, inadequate emergency egress, and unauthorized wiring and plumbing. These violations, along with others related to electrical, plumbing, and fire safety, were officially abated by October 2004 after the removal of the illegal unit and associated work costing $20,000. The building has also experienced ongoing maintenance challenges, including fungal damage repair in 2006 (costing $5,000), and multiple complaints about utilities and building systems between 1996 and 2010, such as non-functioning appliances, electrical issues, and air infiltration problems.

More recently, the property has had recurring sewer issues, with the most recent incidents in 2024 involving a sewage backup discharge through the side sewer vent, and two earlier incidents in 2020. There have been multiple parking enforcement issues in the vicinity, including several cases of blocked driveways between 2023-2024. A natural gas leak incident was recorded but shows no civilian injuries. The building's maintenance history suggests ongoing infrastructure challenges, with several permits dating back to the 1980s for various repairs, including kitchen sink repairs in 1985 (permit expired) and basement wall rebuilding in 1984 (permit cancelled). While many past violations have been addressed, the property's recent history shows continued concerns with basic utility systems, particularly sewer infrastructure.

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

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Risk rating

How 3173 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
61th percentile

Out of 2380 buildings in this neighborhood, 928 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 54.0%
Moderate concern 17.5%
Severe concern 28.5%
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

3173 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 3173 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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