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3959 18Th St

Eureka Valley/Dolores Heights, SF 94114 3584083 2 units · 2 fl · 1900

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 Eureka Valley/Dolores Heights
Above average
avg 1.3
6
FewerMore

This building has 6 novs (7y), above the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3959 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units2
Floors2
Year built1900
Total area1,972 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3584083
Ownership

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

Owner name
Infanto Mary
Mailing address
3959 18th St San Francisco CA 94114
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 3959 18th Street in the Eureka Valley/Dolores Heights neighborhood is a two-story flats and duplex structure built in 1900, currently owned by Mary Infanto. The property has experienced several significant maintenance issues over the past five years, most notably in 2019 when multiple building violations were documented regarding exterior maintenance, including peeling paint, window glazing seal repairs, weatherproofing issues on the siding, and lead hazard concerns. These violations were all addressed and officially abated by August 30, 2021. The building's exterior maintenance history shows a pattern of neglect, with a 2017 complaint documenting unpainted surfaces for over 15 years, resulting in fading, peeling, and deteriorating wood components.

More recently, the property has encountered a sewer issue in December 2023 involving a 4-inch vent line backup, which was resolved by PUC Sewer Operations. The surrounding area has experienced recurring graffiti issues, with multiple reports between 2023 and 2024, though most were closed due to technical issues with reporting systems. Historical records show the building underwent reroofing work in 1988, and street space permits were issued in late 2019 (December and January 2020) for scaffolding-related activities, suggesting exterior work was being undertaken at that time. The building's documented history indicates periodic maintenance challenges, particularly regarding exterior preservation, though the owner has generally responded to violations when formally issued.

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

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Risk rating

How 3959 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
41th percentile

Out of 1278 buildings in this neighborhood, 754 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

NOV rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 60.8%
Moderate concern 26.4%
Severe concern 12.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3959 18Th St apartment reviews

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The story over time

3959 18Th St event timeline

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

2020
Building Permit Jan 23
Street space
Issued

See all 8 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3959 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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