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4071-4073 Mission St

Bernal Heights, SF 94112 5835040 2 units · 2 fl · 1948

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 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 4071-4073 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 1948
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 built1948
Total area2,294 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5835040
Ownership

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

Owner name
Lau Cheng Chuan
Mailing address
4073 Mission St San Francisco CA 94112
Last sale
101895

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.

4073 Mission St, San Francisco, CA 94112
4071 Mission St, San Francisco, CA 94112
Augrented Insights
Initial analysis

The two-story multi-family residential building at 4071-4073 Mission Street in Bernal Heights, owned by Lau Cheng Chuan, was constructed in 1948 and contains two units. The building's maintenance history shows attention to major systems, with three documented reroofing projects - most recently in 2014 and previously in 1993 - as well as a significant electrical upgrade in 2003 that included underground service conversion and 125-amp main service upgrade with two meters.

Recent concerns regarding the property include an inadequately maintained building exterior complaint in October 2023, and ongoing issues with sidewalk defects apparently related to tree root damage, as evidenced by multiple 311 calls between 2021-2023. The building experienced a sewage backup incident in January 2022, which was subsequently resolved. The property has generated several parking-related complaints, though these incidents typically involved vehicles not directly related to the building itself. While there have been two fire department responses recorded as false alarms, no injuries or property damage were reported in either case. The building's infrastructure concerns, particularly regarding the sidewalk and tree root impacts, appear to be the most persistent issues affecting the property.

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

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Risk rating

How 4071-4073 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
87th percentile

Out of 1276 buildings in this neighborhood, 166 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 80.2%
Moderate concern 12.2%
Severe concern 7.6%
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

4071-4073 Mission St event timeline

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

2025
311 Request Apr 17
Parking on sidewalk
Parking Enforcement

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4071-4073 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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