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1749-1753 Union St

Cow Hollow, SF 94123 0544013 3 units · 3 fl · 1907

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 1749-1753 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 1907
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 built1907
Total area3,600 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0544013
Ownership

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

Owner name
Joseph Demartini 2004 Rev L
Mailing address
Demartini Joseph Trustee 1753 Union St San Francisco CA 94123
Last sale
061600

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.

1751 Union St, San Francisco, CA 94123
1749 Union St, San Francisco, CA 94123
1753 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 1749-1753 Union Street in Cow Hollow, owned by Joseph Demartini 2004 Rev L, has a documented history dating back to its 1907 construction. The three-story building, classified as Flat & Store with 4 units or less, has undergone several notable changes and maintenance activities over the past decades. Most recently, in 2018, the property underwent significant infrastructure improvements including a trenchless and hand-dug sewer replacement extending about 25 feet from the house trap, completed in August of that year. Prior to these improvements, the building's commercial space transitioned from a clothing store to a grocery store in early 2012, accompanied by minor electrical work including the installation of four lights and one receptacle, with no construction changes required for the change of use. The property has seen routine maintenance activities such as street space permits in 2018 and 2012, reroofing work in 1996 (though this permit expired), and a kitchen remodel with lighting updates in 1993.

The most recent external incident related to the property occurred in August 2024, when a report of an encampment was made to the Healthy Streets Operation Center, though responding officers were unable to locate the reported situation. While this incident is not directly related to the building's condition or operations, it reflects the broader urban environment of the neighborhood. The building's permit history suggests regular maintenance and timely upgrades to essential systems, with no recorded violations or major safety concerns in recent years.

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

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Risk rating

How 1749-1753 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
30th percentile

Out of 861 buildings in this neighborhood, 603 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
65%
No DBI
violation
35%
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.

Neighborhood (ZIP code)

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 59.1%
Moderate concern 29.9%
Severe concern 11.0%
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

1749-1753 Union St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 1749-1753 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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