Free SF apartment background check

50 Crestline Dr

Twin Peaks, SF 94131 2845008 12 units · 2 fl · 1963

This building has a higher-than-average number of open problems nearby. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Twin Peaks
Above average
avg 3.0
8
FewerMore

This building has 8 novs (7y), above the Twin Peaks average of 3.0.

Rent & eviction protection

Is 50 Crestline Dr 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 1963
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units12
Floors2
Year built1963
Total area9,510 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2845008
Ownership

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

Owner name
Louis & Nancy Chan Lvg Tr
Mailing address
Louis & Nancy Chan, Trustee 45 Burnett Ave San Francisco CA 94131
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit multi-family residential building at 50 Crestline Drive in Twin Peaks is owned by the Louis & Nancy Chan Living Trust and was constructed in 1963. The two-story apartment building has undergone several significant structural and maintenance improvements over the years, most notably completing a mandatory soft story seismic retrofit in 2018 that involved both first and second floors, along with below-grade levels, at a cost of $180,000. Recent building concerns have emerged as of January 2024, with multiple active violations including issues related to building safety and code compliance such as fire escape maintenance, combustible storage, seismic strapping, and the need for exterior building component inspections (Section 604 compliance). The building has a history of fire safety system maintenance issues, with documented violations in 2005, 2007, 2016, and 2018 related to alarm systems and fire escape maintenance.

Historical maintenance records show various improvements, including a roof replacement in 2017 ($10,000), installation of new siding in 2013 ($5,000), and previous roofing work in 1989 and 1996. A notable complaint from 2012 involved mold and mildew issues around bedroom windows and sliding doors, though this was marked as not active shortly thereafter. The building has experienced recurring parking-related issues in the surrounding area, with multiple 311 calls regarding blocked driveways and sidewalk parking between 2019 and 2022, though these are external to the building structure itself. While the building has completed its mandatory soft story retrofit (classified as Tier 3, Work Complete, CFC Issued), the recent violations indicate ongoing maintenance and safety compliance challenges that require attention.

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

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Risk rating

How 50 Crestline Dr'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
33th percentile

Out of 172 buildings in this neighborhood, 115 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building size

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

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 37.7%
Moderate concern 27.9%
Severe concern 34.4%
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

50 Crestline Dr event timeline

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

2025
Electrical Permit Apr 19
Relocated existing main and sub electrical panels
Issued

See all 7 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 50 Crestline Dr 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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