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1856-1858 Union St

Cow Hollow, SF 94123 0530012 2 units · 2 fl · 1900

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 Cow Hollow
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Cow Hollow average of 0.7.

Rent & eviction protection

Is 1856-1858 Union 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
UNION
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 built1900
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot0530012
Ownership

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

Owner name
Isa Y Lee Tr
Mailing address
Lee Isa Y Ttee 20 Lupine Ave San Francisco CA 94118
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.

1858 Union St, San Francisco, CA 94123
1856 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1856-1858 Union Street is a two-unit, two-story mixed-use building constructed in 1900, comprising residential space above ground-floor retail space. Recent significant events include multiple complaints and violations in 2024 related to fire safety, including operating without a permit and general unsafe building conditions with LP gas, though these were subsequently abated. The building experienced notable maintenance work in 2011 with a $10,900 reroofing project, and earlier improvements in 2005 included a substantial electrical upgrade to the main store with the installation of 40 lights, six switches, and six circuits. A significant code violation occurred in 2003 regarding unauthorized use of a rear cottage as office space, which was abated by July 2003 and involved multiple notices of violation and a director hearing. Historical improvements include a dome awning installation (2004) and various signage-related permits dating back to the 1980s.

The property management has recently faced several challenges in 2024, including multiple 311 calls regarding sidewalk defects due to tree roots (September 2024) and various street cleaning issues. Notably, there was a noise citation issued in August 2024 for violating entertainment permit conditions. Historical records show periodic maintenance and improvement work, such as a street space permit in 2017 and the 2011 reroofing project. The property's mixed-use nature has resulted in various inspections and permits over the years, with the most recent activity suggesting ongoing management of infrastructure and compliance requirements.

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

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Risk rating

How 1856-1858 Union 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
57th percentile

Out of 861 buildings in this neighborhood, 370 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building age

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

Neighborhood location

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

12-Month severity forecast
No violation 78.3%
Moderate concern 13.8%
Severe concern 7.9%
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

1856-1858 Union St event timeline

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

2026
Building Permit May 21
Revision to 202604239938, new framing of bathroom floor and walls
$10,000 · Issued
Building PermitApr 23
Remodel of (e) restroom in 1858 to create new accessible restroom, new fixtures and lighting leveling of floor in 1858 to create continous floor.

See all 2 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1856-1858 Union 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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