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735-737 42Nd Ave

Outer Richmond, SF 94121 1602006 2 units · 2 fl · 1945

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 Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 735-737 42Nd Ave 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 1945
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 built1945
Total area2,000 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1602006
Ownership

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

Owner name
Lau Francis & Anita
Mailing address
735 - 737 42nd Avenue San Francisco CA 94121
Last sale
102307

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.

735 42nd Ave, San Francisco, CA 94121
737 42nd Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 735-737 42nd Avenue in the Outer Richmond, owned by Francis and Anita Lau, is a two-story flats and duplex structure built in 1945. The property has undergone several significant maintenance and improvement projects over the years, including a complete reroofing in 2006 costing $5,800, and substantial interior renovations in 2005 that included updates to the kitchen (countertop and cabinets) and bathroom (shower, tub, and sink) valued at $15,000. The building experienced a cluster of violations in August 2002, when multiple issues were documented including problems with handrails, sinks, and egress obstruction, all of which were officially abated by February 2009. An earlier permit from 1987 for stair replacement and driveway concrete repair was noted as expired.

More recent incidents have been relatively minor and mostly external to the building itself. In early 2024, there was a report about an overgrown tree near communication lines, which was acknowledged by the Department of Public Works but deferred for future maintenance due to city-wide scheduling. In 2022, there was a complaint about sidewalk parking which could not be validated by responding officers, and in 2013, an abandoned food truck issue was reported and resolved as it was determined to be on private property. The building's maintenance record shows regular upkeep, though the 2002 violations indicate a period requiring significant attention to compliance issues, all of which have since been resolved.

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

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Risk rating

How 735-737 42Nd Ave'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
63th percentile

Out of 1040 buildings in this neighborhood, 385 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Construction spend, owner's portfolio

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 82.3%
Moderate concern 12.0%
Severe concern 5.7%
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

735-737 42Nd Ave event timeline

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

2025
Building Permit Sep 02
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
$16,700 · Complete

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 735-737 42Nd Ave 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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