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69 Princeton St

Portola, SF 94134 5863016 3 units · 2 fl · 1948

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Portola
Above average
avg 1.8
8
FewerMore

This building has 8 novs (7y), above the Portola average of 1.8.

Rent & eviction protection

Is 69 Princeton 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 1948
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH1
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
Units3
Floors2
Year built1948
Total area6,016 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5863016
Ownership

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

Owner name
Mar Raymond K & Lau Susie
Mailing address
9 Theresa St San Francisco CA 94112
Last sale
050412

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.

69 Princeton St, San Francisco, CA 94134
1015 Silver Ave, San Francisco, CA 94134
Augrented Insights
Initial analysis

The two-story multi-family residential building at 69 Princeton St in Portola, owned by Raymond K. Mar and Susie Lau, was constructed in 1948 and contains 3 units, with a mixed-use classification that includes a store (4 units or less). The property's maintenance history reveals several notable events, with the most concerning recent pattern being a series of street cleaning issues in late 2024, with multiple reports (at least 6) of garbage and debris requiring Recology intervention, including items such as mattresses and refrigerators. There have also been recurring issues with overgrown trees blocking sidewalks, with three such reports in the past two months. The building has undergone some structural work in the past, including a 2003 project (currently expired) to repair/replace a header and beam over the garage door, along with exterior stucco work, and a 2004 sidewalk repair.

The property has experienced some safety concerns, most notably a blocked exits complaint in March 2022, which was corrected within three weeks, and a weeds and grass issue in October 2012 that was promptly addressed. While there was an unspecified complaint in May 2008, it was determined to have no merit. The building's permit history indicates regular maintenance activities, though most permits were issued at minimal cost, suggesting these were routine rather than major improvements. The recent pattern of garbage issues and tree maintenance needs suggests ongoing challenges with property upkeep in the surrounding area, though many of these cases have been resolved through proper channels.

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

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Risk rating

How 69 Princeton 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
11th percentile

Out of 255 buildings in this neighborhood, 227 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
37%
No DBI
violation
63%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building size

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

12-Month severity forecast
No violation 43.2%
Moderate concern 39.2%
Severe concern 17.6%
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

69 Princeton St event timeline

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

2025
Building Permit Nov 07
Repair or replace handrail at exterior stairway to the unit. to comply with nov #202540971 (802(c), 1001 (b), (13) (hc) #3
$480 · Issued
Planning RecordNov 07
11/7/2025: approved: repair damaged handrail at residential entrance to comply with NOV 202540971. [email protected]

See all 8 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 69 Princeton St apartments

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

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