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704-706 42Nd Ave

Outer Richmond, SF 94121 1603046 11 units · 2 fl · 1923

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 Outer Richmond
Above average
avg 0.7
55
FewerMore

This building has 55 novs (7y), above the Outer Richmond average of 0.7.

Rent & eviction protection

Is 704-706 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 1923
2 or more units
11 units
Property type
Multi-Family Residential
Zoning
NC1
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
Units11
Floors2
Year built1923
Total area7,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1603046
Ownership

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

Owner name
Yu Family Trust
Mailing address
Frank & Tammy Yu Trustees 1200 Monterey Blvd San Francisco CA 94127
Last sale
010899

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.

706 42nd Ave, San Francisco, CA 94121
4043 Balboa St, San Francisco, CA 94121
704 42nd Ave, San Francisco, CA 94121
4041 Balboa St, San Francisco, CA 94121
4045 Balboa St, San Francisco, CA 94121
4047 Balboa St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 11-unit, 2-story multi-family residential building at 704-706 42nd Avenue was constructed in 1923 and is owned by the Yu Family Trust. The property has undergone several significant renovations over the years, with the most substantial occurring in 2017 when a major project valued at $80,000 was completed to legalize the remodel of multiple kitchens and bathrooms in various units, install a new water heater for common areas, and repair damaged joist members. This work was in response to multiple complaints and involved extensive plumbing and electrical upgrades across several units. In 2018, the southern wall received new siding and waterproofing treatment at a cost of $1,500. The building has experienced various maintenance and safety issues over time, including a cluster of violations in 2016-2017 related to interior surfaces, smoke detectors, plumbing issues, and lead paint hazards, all of which were abated by March 15, 2016.

Recent history shows recurring fire safety concerns, with multiple complaints between 2017 and 2024 regarding fire extinguishers and alarm systems, though most of these have been marked as resolved or corrected. A notable violation regarding sprinklers/ceiling clearance was referred to hearing in May 2018. The building has also faced several inspection-related issues, particularly in 2017 when multiple task force inspections were conducted, revealing concerns about unauthorized construction work and general maintenance violations. More recently, in late 2024, the property has had various reports of street issues including graffiti, debris, and utility concerns, which are typical for urban environments. Fire safety remains a recurring theme in the building's history, with the most recent complaint in October 2024 regarding blocked exits, which was promptly corrected. The available data indicates that most violations have been addressed through required repairs or compliance measures, though some historical patterns of deferred maintenance and unpermitted work are evident, particularly in 2017 when multiple violations triggered inspections and required legalization of certain improvements.

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

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Risk rating

How 704-706 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
6th percentile

Out of 1040 buildings in this neighborhood, 978 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
39%
No DBI
violation
61%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 12.8%
Moderate concern 36.1%
Severe concern 51.1%
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

704-706 42Nd Ave event timeline

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

2026
311 Request Apr 13
Garbage and debris
refrigerator appliance
Fire ComplaintFeb 28
Street Numbering

See all 10 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 704-706 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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