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2445 Union St

Cow Hollow, SF 94123 0537001C 12 units · 3 fl · 1924

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 2445 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 1924
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
Floors3
Year built1924
Total area11,357 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0537001C
Ownership

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

Owner name
Leslie Nichols Hoogerhyde L
Mailing address
Hoogerhyde Leslie Nichols, 164 Liberty St San Francisco CA 94110
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

2445 Union Street is a 12-unit, 3-story multi-family residential building constructed in 1924 in the Cow Hollow neighborhood. The property has undergone several significant system upgrades in recent years, including a 2024 modification to the fire alarm system to install low-frequency sounds in sleeping areas, and the installation of a new steam boiler in 2014 to replace a leaking unit. The building has experienced some notable infrastructure challenges, particularly with its sewer system, experiencing multiple issues including a broken sewer line in 2009 that was leaking onto the sidewalk, which was subsequently repaired with a new cast iron sewer pipe installation.

The building's maintenance history shows regular upkeep, including a roof replacement in 1996, termite repairs in 1991, and various plumbing and structural improvements. There have been recurring fire safety concerns, with the most recent fire alarm system issue reported and corrected in 2023, following similar problems in 2015 and 2007. The property has also undergone multiple routine inspections and addressed several building violations over the years, including handrail installation requirements in 2000 and egress obstruction issues in 2008. Recent 311 calls from 2021-2024 primarily relate to street cleaning, parking enforcement, and general maintenance of exterior areas. While the building has faced various maintenance challenges over the years, records indicate that issues have generally been addressed through proper channels, with most violations being resolved and no active violations currently on record.

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

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Risk rating

How 2445 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
9th percentile

Out of 861 buildings in this neighborhood, 784 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
49%
No DBI
violation
51%
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.

Building size

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

Number of units

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 36.7%
Moderate concern 48.6%
Severe concern 14.7%
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

2445 Union St event timeline

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

2026
Fire Complaint May 20
Extinguishers

See all 4 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2445 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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