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2155-2157 Union St

Cow Hollow, SF 94123 0540022 3 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 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 2155-2157 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 1904
2 or more units
3 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
Units3
Floors3
Year built1904
Total area3,640 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0540022
Ownership

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

Owner name
Best G K Real Esatate
Mailing address
Gina K Best 2368 Vallejo St San Francisco CA 94123
Last sale
060900

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.

2155 Union St, San Francisco, CA 94123
2157 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 2155-2157 Union Street is a three-story mixed-use building constructed in 1904, containing three residential units and ground-floor retail space in the Cow Hollow neighborhood, currently owned by Best G K Real Estate. The building's recent history (2018-2024) reveals several significant maintenance and improvement projects, including structural work in 2018 to address dry rot and reinforce a third-floor roof deck, along with plumbing and electrical updates related to drainage system improvements. The ground floor retail space underwent tenant improvements in 2016 for the installation of storage racks, awning modifications, and new signage, culminating in the successful establishment of a Formula Retail Use for Jo Malone London, replacing the previous tenant, Paparazzi.

The property has experienced multiple 311 calls and complaints between 2022 and 2024, primarily related to sidewalk maintenance issues including debris, graffiti, and tree root damage. Notably, there was a historical facade-related complaint in 2018 regarding unauthorized work on the building's front facade. Most concerning is a recent fire code violation issued on November 21, 2024, related to an ERRCS permit requirement, though this appears to have been addressed the same day. The building's maintenance record shows regular upkeep, with multiple completed permits for various improvements, though some permits have expired or transitioned to different statuses over time. The property has also required several street space permits between 2016-2022, suggesting recurring needs for temporary street access during maintenance or construction work.

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

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Risk rating

How 2155-2157 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
53th percentile

Out of 861 buildings in this neighborhood, 405 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Construction spend, owner's portfolio

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

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.

12-Month severity forecast
No violation 57.9%
Moderate concern 30.5%
Severe concern 11.7%
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

2155-2157 Union St event timeline

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

2025
Planning Record Oct 22
DPH referral - Massage Sole Practitioner Establishment
Closed - Approved

See all 3 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2155-2157 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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