Free SF apartment background check

489-495 Utah St

Potrero Hill, SF 94110 3975003 4 units · 3 fl · 1904

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 Potrero Hill
Above average
avg 1.1
13
FewerMore

This building has 13 novs (7y), above the Potrero Hill average of 1.1.

Rent & eviction protection

Is 489-495 Utah 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 1904
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units4
Floors3
Year built1904
Total area4,080 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3975003
Ownership

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

Owner name
Yang Crystal Seungmee
Mailing address
489 Utah St San Francisco CA 94110
Last sale
082619

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.

493 Utah St, San Francisco, CA 94110
495 Utah St, San Francisco, CA 94110
489 Utah St, San Francisco, CA 94110
491 Utah St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-story multi-family residential building at 489-495 Utah Street in Potrero Hill, owned by Crystal Seungmee Yang, was constructed in 1904 and contains 4 units. The property has undergone significant modifications and faced several regulatory challenges over the past two decades. Most notably, between 2015 and 2018, the rear building underwent a controversial transformation from a shed to an accessory dwelling unit (ADU), which included the installation of fire sprinklers, electrical work, and plumbing modifications. This conversion spurred multiple code enforcement actions, including a 2016 violation for unpermitted construction that resulted in monthly monitoring fees. The property has also seen substantial upgrades to its core systems, including a 200-amp electrical service upgrade, furnace replacements for multiple units, and bathroom and kitchen remodels.

Historical records show persistent maintenance and compliance issues, particularly regarding egress and safety requirements. In 2015, there was a violation regarding unauthorized stairway modifications, and previous complaints from 2003 and 2007 involved various building maintenance concerns. Recent infrastructure updates have included multiple sewage backup incidents in 2020-2022, which were resolved by city services. The building's exterior has been modified to include translucent wall sections on the north property line, and several units have received new windows. The property has also experienced some neighborhood impact issues during construction periods, with complaints about debris management and construction activity. While many of these historical issues have been resolved through proper permitting and compliance measures, the pattern of construction-related violations and maintenance concerns suggests an ongoing need for careful monitoring of building modifications and maintenance practices.

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

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Risk rating

How 489-495 Utah 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
43th percentile

Out of 726 buildings in this neighborhood, 414 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
71%
No DBI
violation
29%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 47.3%
Moderate concern 29.0%
Severe concern 23.7%
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

489-495 Utah St event timeline

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

2026
311 Request Jun 12
Large vehicle
Parking Enforcement
311 RequestJun 12
Encampment

See all 3 events

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

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Every record we have

Full data for 489-495 Utah 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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