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3959 Mission St

Bernal Heights, SF 94112 5802029 4 units · 2 fl · 1952

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 3959 Mission 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 1952
2 or more units
4 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
Units4
Floors2
Year built1952
Total area3,098 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot5802029
Ownership

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

Owner name
Liang Damon Jian F & Jenny
Mailing address
3959 Mission St Apt 1 San Francisco CA 94112
Last sale
041618

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 3959 Mission Street in Bernal Heights, owned by Liang Damon Jian F & Jenny, was constructed in 1952 and has experienced several significant events over its history. Most notably, between 2000-2012, the building underwent various safety improvements following multiple fire safety and security violations, including the installation of smoke detectors, fire extinguisher maintenance, and security door upgrades, all of which were successfully abated. In recent years, there have been several plumbing and maintenance issues, with a water heater replacement project completed in 2017 and a significant plumbing complaint regarding toilet water fill issues reported in 2021 that persisted for two years before being documented. The building has also undergone various infrastructure improvements including reroofing in 2009 and conversion to underground electrical service in 2003, though both permits are now expired.

The property has been subject to routine safety inspections throughout the years, with the most recent documented routine inspection occurring in 2015. Recent 311 calls from 2024 primarily relate to street cleaning issues, including reports of garbage and debris, with one plumbing-related complaint in 2021 that received housing inspection follow-up. The building's historical records show consistent attention to addressing safety and maintenance issues, particularly in the early 2000s, though some recent plumbing concerns suggest ongoing maintenance challenges. The property's location has experienced typical urban issues as evidenced by multiple reports of street cleaning needs and parking enforcement calls in the vicinity, which are not directly related to building conditions but reflect the neighborhood context.

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

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Risk rating

How 3959 Mission 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
10th percentile

Out of 1276 buildings in this neighborhood, 1148 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
47%
No DBI
violation
53%
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.

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.

12-Month severity forecast
No violation 31.7%
Moderate concern 26.4%
Severe concern 41.9%
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

3959 Mission St event timeline

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

2021
DBI Complaint Jun 30
Caller reports that the toilet water inside of bathroom toilet won't fill up and has asked landlord to fix issue. landlord has not assisted with repairs and issue has been going on for two years.
Housing Inspection Services

See all 1 events

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

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Every record we have

Full data for 3959 Mission 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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