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2984 23Rd St

Inner Mission, SF 94110 4148016B 4 units · 2 fl · 1900

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 2984 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
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 built1900
Total area3,600 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4148016B
Ownership

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

Owner name
Serrano Ramon
Mailing address
309 De Nardi Way South San Francisco CA 94080
Last sale
031595

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.

2984 23rd St, San Francisco, CA 94110
2685 Harrison St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The 2984 23rd Street property, located in San Francisco's Inner Mission neighborhood, is a two-story multi-family residential building constructed in 1900, containing four units and classified as a Flat & Store 4 unit building with commercial space. The building has experienced several significant maintenance and safety-related events over the past few years. Most notably, in August 2020, there were multiple complaints regarding flue/ventilation issues, with residents expressing concerns about potential carbon monoxide hazards due to improper flue termination. A related plumbing permit in November 2020 indicated work was done to move the water heater exhaust, though these venting issues remain concerning. The property has a history of building vibration issues, with a 2015 complaint about building shaking during washing machine cycles. Recent maintenance concerns include a rodent/insect infestation reported in January 2025 and multiple garbage and debris incidents in late 2024, suggesting ongoing sanitation challenges. The building has experienced various fire safety-related incidents and inspections, with the most recent fire complaint in 2022 regarding extinguishers (which was corrected), and a documented history of smoke detector activations and false alarms. Historical records show several fire safety violations from 2006, including issues with smoke detectors, emergency lighting, and exit obstructions, though these appear to have been resolved. The property has undergone various permitted modifications over the years, including an attempted conversion of a store space to a laundry facility in the early 1990s, though some of these permits were disapproved or expired.

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

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Risk rating

How 2984 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
24th percentile

Out of 2380 buildings in this neighborhood, 1809 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
47%
No DBI
violation
53%
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.

DBI tenant complaints (past 7 years)

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

12-Month severity forecast
No violation 31.9%
Moderate concern 44.7%
Severe concern 23.4%
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

2984 23Rd St event timeline

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

2026
311 Request Apr 08
Encampment
Encampment

See all 9 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2984 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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