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834-840 York St

Inner Mission, SF 94110 4087007 4 units · 2 fl · 1900

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
9
FewerMore

This building has 9 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 834-840 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
4 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
Units4
Floors2
Year built1900
Total area4,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4087007
Ownership

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

Owner name
Chu Patricia J
Mailing address
591 Los Palmos Dr San Francisco CA 94127
Last sale
112015

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.

834 York St, San Francisco, CA 94110
838 York St, San Francisco, CA 94110
840 York St, San Francisco, CA 94110
836 York St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 834-840 York Street in San Francisco's Inner Mission neighborhood is a 2-story, 4-unit multi-family residential building constructed in 1900, currently owned by Patricia J. Chu. The building has undergone several significant maintenance and improvement projects over the years, including a complete reroofing in 2009 (cost: $12,000), electrical panel replacement in 2010, and furnace installations in 2016. A comprehensive electrical upgrade occurred in late 2004, replacing numerous circuits and installing new heaters throughout the building. However, the property experienced notable maintenance issues in August 2021, when multiple violations were filed regarding interior surfaces, including damaged walls, windows, floors, and plumbing fixtures, as well as concerns about lead paint hazards. These violations were officially abated by October 29, 2021. Earlier violations from 2003 and 2004 included plumbing issues and an unpermitted kitchen remodel that was eventually addressed in 2005-2012.

More recent concerns have emerged regarding the property's exterior environment, with multiple 311 calls in 2023 primarily related to sidewalk cleaning and garbage management, though these were generally resolved promptly. The most recent incident, recorded in November 2023, involves a damaged tree that was reported but remains open as of the current date. While the building has a history of maintenance challenges and violations, it's worth noting that most of these issues have been addressed through proper channels, often within reasonable timeframes, and there have been no new violations filed since 2021. The property's permit history shows regular maintenance and upgrades to critical systems, including electrical, plumbing, and heating infrastructure.

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

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Risk rating

How 834-840 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
28th percentile

Out of 2380 buildings in this neighborhood, 1714 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
51%
No DBI
violation
49%
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.

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 48.9%
Moderate concern 22.3%
Severe concern 28.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

834-840 York St event timeline

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

2026
Plumbing Permit Mar 24
Move sink, add dishwasher, add garbege disposal.
Issued
Plumbing PermitMar 24
Move kitchen sink, add dishwasher, add garbage disposal.

See all 15 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 834-840 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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