Free SF apartment background check

306 Anza St

Lone Mountain, SF 94118 1090032 2 units · 2 fl · 1900

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 Lone Mountain
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Lone Mountain average of 0.9.

Rent & eviction protection

Is 306 Anza 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
2 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
Units2
Floors2
Year built1900
Total area2,408 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1090032
Ownership

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

Owner name
Tam 2006 Fmly Tr
Mailing address
Tim & Patty Tam,trustees 1 Cymbidium Circle South San Francisco CA 94080
Last sale
061605

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 306 Anza St in the Lone Mountain neighborhood, owned by Tam 2006 Family Trust, has a history dating back to 1900. The property underwent significant renovation in 2003-2004, including an expansion project that added new living spaces, though this work required multiple revisions and corrections, particularly concerning window modifications. A notable safety issue occurred in mid-2004 when the east property line deck, elevated 10 feet above grade, was deemed unsafe due to deteriorated joists and deck boards, resulting in violations that were eventually abated by October 2004. The building has seen various infrastructure improvements, including plumbing work in 2023 for gas houseline extension, and substantial electrical upgrades in 2003 with a 200-amp service installation and rewiring of the basement, though one electrical permit from 2004 was cancelled.

Recent activity at the property has shown some maintenance challenges, with multiple reports of garbage and debris on the property from mid-2024 through early 2025, including abandoned furniture and appliances. There have been several parking-related complaints in 2024, though most were resolved promptly. The building's fire safety record shows primarily false alarms and system malfunctions, with no confirmed fire incidents involving injuries or significant damage. Historical records indicate earlier maintenance work in the late 1980s, including roofing and bathroom repairs, suggesting regular upkeep of the property over the decades. The recent plumbing work in 2023 indicates that infrastructure maintenance continues to be addressed, though there have been multiple 311 calls regarding debris and health-related concerns on the property in 2024.

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

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Risk rating

How 306 Anza 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
51th percentile

Out of 519 buildings in this neighborhood, 254 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 80.9%
Moderate concern 14.0%
Severe concern 5.2%
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

306 Anza St event timeline

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

2026
311 Request Feb 24
Pavement defect
Sidewalk and Curb

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 306 Anza 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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