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2100-2104 18Th St

Potrero Hill, SF 94107 4010001B 3 units · 2 fl · 1941

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 Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 2100-2104 18Th 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 1941
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH2
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
Floors2
Year built1941
Total area2,550 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4010001B
Ownership

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

Owner name
Sabbadini Barbara C
Mailing address
930 Tournament Dr Hillsborough 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.

2104 18th St, San Francisco, CA 94107
2100 18th St, San Francisco, CA 94107
2102 18th St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The 3-unit residential building at 2100-2104 18th Street in Potrero Hill, owned by Barbara C Sabbadini, has undergone several significant improvements since its construction in 1941. In 2005, the property received substantial updates including the installation of 31 vinyl windows at a cost of nearly $10,000, while earlier maintenance records show a complete reroofing project was completed in 2000 for $7,000. The building experienced notable violations in August 2005 related to fire safety and security, specifically concerning fire proofing materials and exterior door self-closing mechanisms, though these issues were promptly addressed and abated by October 31, 2005. The property has undergone routine health and safety inspections by Housing Inspection Services in 1999 and 2005-2010, with all cases marked as Not Active.

Recent activity around the property, while not directly related to the building's condition, includes multiple infrastructure issues on the adjacent sidewalks, with three separate reports of lifted sidewalks between 2019 and 2022. There have also been various street maintenance concerns in the vicinity, including garbage and debris issues, pavement defects, and a 2020 incident involving graffiti on a mailbox. A rent board service request was logged in March 2022, though the specifics of this inquiry are not detailed in the records. The most recent building permit activity on record is from 2005, suggesting no major structural or system modifications have occurred in the past 18 years.

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

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Risk rating

How 2100-2104 18Th 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
66th percentile

Out of 726 buildings in this neighborhood, 247 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.

Construction spend, owner's portfolio

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

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 58.2%
Moderate concern 32.2%
Severe concern 9.6%
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

2100-2104 18Th St event timeline

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

2026
Building Permit Feb 18
Re-roofing: remove existing roof and install new torch roof.
$18,400 · Complete

See all 1 events

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

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Every record we have

Full data for 2100-2104 18Th 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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