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1109 York St

Inner Mission, SF 94110 4210031 2 units · 2 fl · 1900

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
At or below average
avg 2.6
1
FewerMore

This building has 1 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 1109 York 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
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
Units2
Floors2
Year built1900
Total area2,036 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4210031
Ownership

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

Owner name
Vazquez Silvia Delcarmen
Mailing address
1109 York 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

The two-family residential building at 1109 York Street in the Inner Mission, owned by Silvia Delcarmen Vazquez, has been in operation since 1900 and consists of two stories. The property is currently under significant scrutiny due to recent housing code violations filed in January 2024, alleging unauthorized modifications that created additional dwelling units and safety concerns. These violations include multiple serious infractions such as inadequate smoke detectors, improper exiting, insufficient fire resistance materials, inadequate ceiling height, lack of approved heating sources, and various issues with plumbing, electrical systems, egress routes, and light/ventilation requirements.

Most notably, the building's current occupancy situation is particularly concerning, with records indicating the presence of three dwelling units despite the legal classification as an R-3 two-family dwelling, including an allegedly occupied unpermitted unit with kitchen, sink, and bath facilities on the ground floor behind the garage. The property has undergone several permit applications over the years, including a solar panel installation in 2022 and multiple historical permits for various modifications, though some permits have been cancelled or expired. Recent municipal service calls (from early 2024 to September 2024) have primarily focused on street cleaning and parking enforcement issues around the property, with multiple reports of illegal parking and garbage concerns that were subsequently resolved. The building's current status shows active efforts to address the violations through a planning application under review for the legalization of previously unpermitted units and structures, while recent inspections have noted various unsafe conditions requiring correction.

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

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Risk rating

How 1109 York 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
19th percentile

Out of 2380 buildings in this neighborhood, 1928 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

DBI tenant complaints (past 7 years)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 35.2%
Moderate concern 52.1%
Severe concern 12.7%
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

1109 York St event timeline

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

2025
Planning Record Mar 17
Subpoena - 1109 York
Closed - Informational

See all 5 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1109 York 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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