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1540-1544 Union St

Cow Hollow, SF 94123 0527012 5 units · 3 fl · 1906

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 1540-1544 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 1906
2 or more units
5 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
Units5
Floors3
Year built1906
Total area4,880 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0527012
Ownership

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

Owner name
Isac & Eileen C Marchasin R
Mailing address
Isac & Eileen C Marchasin, 1801 Sebastian Dr Burlingame CA 94010
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.

1540 A Union St, San Francisco, CA 94123
1542 Union St, San Francisco, CA 94123
1540 Union St, San Francisco, CA 94123
1544 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1540-1544 Union Street in Cow Hollow is a mixed-use three-story building constructed in 1906, containing 5 residential units and commercial space, currently owned by Isac & Eileen C Marchasin Revocable Trust. The building experienced significant maintenance issues in October 2018, when multiple violations were documented regarding interior conditions, including damaged ceilings, walls, and floor coverings, as well as concerns about mold, hazardous kitchen appliances, and non-code-compliant wooden floors. These violations, which also included concerns about lead paint, were all formally abated by January 2019. More recent activity includes two filed permits in March 2023 related to ADA compliance, specifically for installing new signage and a battery-operated doorbell, demonstrating the owner's commitment to accessibility improvements despite claiming unreasonable hardship ($500 costs).

The building's history shows several notable repairs and improvements, including the replacement of dry rot-damaged rear stairs in 2012 (costing $10,000) which were required for proper egress. Historical records from the 1980s note various improvements including an awning installation with steel frame in 1985, and the addition of 1540A to the property addresses in 2012. Recent maintenance efforts outside the building have been documented through 311 calls, primarily relating to sidewalk cleaning and graffiti removal between 2019-2022, though these external issues don't directly impact resident experience. The most recent documented permits show ongoing accessibility improvements, while the 2018 violations represent the most significant cluster of maintenance issues in the building's recent history.

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

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Risk rating

How 1540-1544 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
33th percentile

Out of 861 buildings in this neighborhood, 577 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
66%
No DBI
violation
34%
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.

NOV rate, owner's portfolio

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

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 55.9%
Moderate concern 17.4%
Severe concern 26.7%
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

1540-1544 Union St event timeline

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

2023
Building Permit Mar 17
To comply with abe ord 51-16. ref abe 202208052709. unreasonable hardship. install new ada signage and battery operated door bell.
$500 · Cancelled
Building PermitMar 17
To comply with abe ord 51-16. ref abe 202206031263. unreasonable hardship. install new ada signage and battery operated door bell.

See all 2 events

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

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Every record we have

Full data for 1540-1544 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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