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2239 Lake St

Lake Street, SF 94121 1383042 3 units · 3 fl · 1987

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 Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 2239 Lake 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 1987
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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
Floors3
Year built1987
Total area3,880 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1383042
Ownership

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

Owner name
Nguyen Thuy Trang Thi
Mailing address
131 15th Ave San Francisco CA 94118
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit, three-story multi-family residential building at 2239 Lake Street was constructed in 1987 following the demolition of a previous single-family dwelling. The building underwent reroofing in 1998, which was completed successfully. A significant cluster of violations occurred in September 2001, all of which were resolved by mid-November 2001 and primarily related to fire safety concerns, including egress obstructions, gas utility shutoff tool requirements, directional sign installations, and central alarm system repairs. A routine housing inspection was conducted in July 2008 with no noted issues.

In recent years, the building has experienced various municipal service calls, with the most significant being a water leak investigation in January 2025 (determined to be a private property issue), a sidewalk defect report in December 2024, and several parking-related incidents in January 2023. The property was also the subject of environmental service requests in 2022 for hazardous materials removal and general cleaning. A fire code violation regarding weeds and grass was recorded and addressed in June 2021, and there was a smoke or odor removal incident reported, though no civilian injuries were noted. The building's planning records confirm approval for the three-unit condominium development, and all previously documented violations have been officially abated.

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

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Risk rating

How 2239 Lake 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
87th percentile

Out of 660 buildings in this neighborhood, 86 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Estimated permit spend (past 7 years)

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 79.0%
Moderate concern 12.8%
Severe concern 8.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

2239 Lake St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 2239 Lake 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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