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258 18Th Ave

Central Richmond, SF 94121 1416030 2 units · 2 fl · 1993

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 Central Richmond
Above average
avg 0.5
6
FewerMore

This building has 6 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 258 18Th 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 1993
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1993
Total area4,292 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1416030
Ownership

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

Owner name
Tam Timothy & Verna Trust
Mailing address
Timothy Chi Tin&verna R Tam 1514 Funston Ave San Francisco CA 94122
Last sale
010803

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 258 18th Avenue, owned by the Tam Timothy & Verna Trust, has undergone several significant maintenance and compliance events since its construction in 1993. Most recently, in 2024, substantial interior renovations were completed including the replacement of dry rot wood floors, plumbing fixtures, and bathroom updates at a cost of $28,500. In 2023, the building received a new roof, and previous structural maintenance included repairs to stucco and dry rot damage in 2007, as well as the restoration of the building to its last legal use in 1995 following unauthorized modifications. The property has faced multiple building violations, most notably in 2021 when multiple electrical issues were documented and subsequently resolved, including problems with light switches, electrical receptacles, and a phone outlet. There was also a significant compliance issue in 2008 regarding an unauthorized basement unit (258A) that was addressed through permits to remove appliances and restore legal configurations.

The building's infrastructure has been regularly maintained, with plumbing and electrical systems receiving attention through various permits, including recent updates to bathroom fixtures in 2024. Historical records show the building was required to install sprinklers in 1992, and there have been multiple permit applications for both street space use and interior modifications. While the property has experienced some maintenance issues over the years, including a 2022 noise complaint and several parking enforcement matters in 2024, these have generally been promptly addressed. The building's ownership has taken steps to comply with city regulations, as evidenced by multiple permits to correct violations and maintain the property's legal status as a two-family dwelling.

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

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Risk rating

How 258 18Th 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
35th percentile

Out of 2250 buildings in this neighborhood, 1462 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

NOV rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

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

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 68.7%
Moderate concern 25.0%
Severe concern 6.3%
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

258 18Th Ave event timeline

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

2024
Building Permit Jun 24
Replacement of dry rot wood floor (to include subfloor, joist, etc) repalcaing toilet, sink, fixtures, tiles.
$10,000 · Complete
Plumbing PermitJun 24
Replacing/reinstalling a sink, bathtub and toilet

See all 10 events

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

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Every record we have

Full data for 258 18Th Ave 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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