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906 Cortland Ave

Bernal Heights, SF 94110 5683021 3 units · 2 fl · 2018

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 906 Cortland 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 2018
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
NC2
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
Units3
Floors2
Year built2018
Total area3,068 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5683021
Ownership

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

Owner name
Tam Family Trust
Mailing address
Tam Kwong Woot & Sai Yan Xi 60 Manor Dr San Francisco CA 94127
Last sale
021319

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.

906 A Cortland Ave, San Francisco, CA 94110
906 B Cortland Ave, San Francisco, CA 94110
906 Cortland Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The 3-unit multi-family residential building at 906 Cortland Avenue in Bernal Heights, owned by the Tam Family Trust, was constructed in 2018 and is a two-story flat with a commercial space. The building's development included significant infrastructure upgrades, notably a comprehensive fire safety system with 53 sprinklers installed in 2016-2017 ($28,090), followed by a monitoring system in 2018, and extensive plumbing work including the installation of all-new plumbing systems, four bathrooms, two kitchens, and various utility installations. The property underwent substantial improvements in 2017-2018, including the installation of two tankless water heaters, fireplaces, and complete electrical wiring for three units featuring 150 outlets, 120 lights, and a 400 amp service.

Recent maintenance work has focused on plumbing updates, including the removal of incorrect backflow devices in the garage and updates to laundry room backflows in October 2024. The building has experienced minimal issues; however, there was one building code complaint in 2016 regarding height concerns, which is marked as not active. Two recent 311 calls in 2022 and 2024 relate to street cleaning matters, which were resolved promptly. As of June 2023, there is an inactive complaint on record about the main building being classified as a vacant commercial/business structure. The property's documented history shows consistent upgrading and maintenance work, with most major systems being installed or upgraded between 2016 and 2018, suggesting that the building has met modern safety and utility standards since its construction.

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

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Risk rating

How 906 Cortland 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
70th percentile

Out of 1276 buildings in this neighborhood, 383 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

DBI complaint rate, owner's portfolio

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

12-Month severity forecast
No violation 43.2%
Moderate concern 43.6%
Severe concern 13.2%
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

906 Cortland Ave event timeline

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

2026
Plumbing Permit Mar 10
Work category: 1p; 906a 906b replacement new style 573403a backflow preventer on second & third floor laundry rooms.
Complete

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

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Every record we have

Full data for 906 Cortland Ave apartments

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

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