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310-312 30Th Ave

Central Richmond, SF 94121 1404043 2 units · 2 fl · 1909

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Richmond
Above average
avg 0.5
20
FewerMore

This building has 20 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 310-312 30Th Ave 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 1909
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 built1909
Total area2,456 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1404043
Ownership

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

Owner name
Vincent Osman
Mailing address
1920 Alcatraz Ave Berkeley CA 94703
Last sale
000000

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.

312 30th Ave, San Francisco, CA 94121
310 30th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 310-312 30th Avenue in the Central Richmond neighborhood is a two-unit, two-story multi-family residential building constructed in 1909, currently owned by Vincent Osman. The building has experienced numerous significant safety and maintenance issues throughout 2023, with multiple active violations filed in November 2023 related to fire safety, including problems with smoke detectors, carbon monoxide alarms, egress obstructions, and hazardous mechanical equipment. Other concerning issues from recent complaints include mold/mildew presence, sink repairs, and combustible storage violations. The building has a history of persistent maintenance problems, as evidenced by multiple sets of work permits from 2016 through 2022, including several attempts to address water damage and electrical system upgrades, though many permits are now expired. Three separate complaints from May 2023 documented exposed wiring, plumbing leaks, building deterioration, and an ongoing sewer leak in the backyard. The property has also faced legal scrutiny based on allegations of creating a public nuisance, though specific details about any legal outcomes are not included in the available records. More recent electrical work was performed in June 2023, adding plugs and lights, but numerous building violations remain unresolved as of November 2023. The building's history suggests ongoing challenges with maintenance compliance, building safety systems, and basic habitability standards, with most recent violations concentrating on fire safety and hazardous conditions.

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

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Risk rating

How 310-312 30Th Ave'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
3th percentile

Out of 2250 buildings in this neighborhood, 2182 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
34%
No DBI
violation
66%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 11.4%
Moderate concern 76.8%
Severe concern 11.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

310-312 30Th Ave apartment reviews

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The story over time

310-312 30Th Ave event timeline

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

2026
DBI Complaint Mar 27
Date last observed: 26-mar-26; floor: lower / ba; exact location: main bldg; building type: residence/dwelling fire safety/fire escape; exposed wiring; insects/rodents; other building; ; additional information: this property has been an ongoing problem for the surrounding neighbors for the past 8+ years, and has two orders of abatement we implore the city to take meaningful action to enrorce. the properly is derelict and continues to pose health, safety and fire risks. raw sewage in the light well and piles of trash/debris in the backyard are a breeding ground for flies, mosquitos and rats, impacting all of the neighbors. debris in the lower-unit, basement, fire escape, backyard ¿ hanging interior wires, negligent smoking (butts extinguished on wood window-sills), uncontrolled vagrant access to backyard (including someone setting a fire) are ongoing and unacceptable fire hazards. we need action by the city here. ;
Housing Inspection Services
DBI ComplaintMar 25
Date last observed: 24-mar-26; time last observed: 7:00 am; exact location: rear bldg; building type: residence/dwelling abandoned/derelict structure; insects/rodents; damaged walls; other building; ; additional information: this property has been an ongoing problem for all of the surrounding neighbors for the past 7 years, and although the multiple on-going issues have been reported to the city and orders of abatement have been issued, there has been no resolution for the impacted neighbors. the properly is derelict and continues to poise a health, safety and fire risk. here are some of the specific examples of the impact this recalcitrant property owner has had on the neighbors: 1.] flies, mosquitos, rats - all the result of standing sewage, piled up trash, rotting debris. we can't open our windows without having swarms of large black flies or mosquitos from the standing water infiltrate our homes; 2.] piles of trash and rotting organic material in the backyard, which

See all 15 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 310-312 30Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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