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15-17 Jansen St

Russian Hill, SF 94133 0074019 2 units · 2 fl · 1926

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 Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 15-17 Jansen 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 1926
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM2
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 built1926
Total area1,642 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0074019
Ownership

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

Owner name
Ng Family Revoc Trust
Mailing address
Ng Hanley & Alice Yao Trust 17 Jansen St San Francisco CA 94133
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.

15 Jansen St, San Francisco, CA 94133
17 Jansen St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 15-17 Jansen Street in Russian Hill, owned by the Ng Family Revocable Trust, is a two-story flats and duplex structure built in 1926. The property has undergone several significant improvements in recent years, including a complete window replacement project in 2013 costing over $20,000, where 28 windows were installed with 12 being Anderson wood windows visible from the street, along with a reroofing project in 2015 costing $6,500. The building's maintenance history shows attention to safety features, with smoke detectors and door locks installed in 1988.

The building has experienced some structural maintenance issues in the past, with multiple violations documented between 2003 and 2006 requiring repairs to stairs and a roof deck, though all these violations were ultimately abated. The property underwent routine housing inspections in 2002, 2003, 2004, and 2006, suggesting regular monitoring by housing authorities. Recent history shows minimal internal building issues, with only parking-related complaints recorded in the vicinity between 2010 and 2021, including multiple complaints about driveway blocking and two reports of abandoned vehicles, though these were not directly related to building conditions. The most recent building permit on record is from 2018 for street space usage, indicating ongoing compliance with local regulations.

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

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Risk rating

How 15-17 Jansen 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 1133 buildings in this neighborhood, 147 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.

Neighborhood location

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 78.6%
Moderate concern 11.1%
Severe concern 10.3%
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

15-17 Jansen 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 15-17 Jansen St apartments

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

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