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607-609 34Th Ave

Outer Richmond, SF 94121 1577001A 2 units · 1924

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 607-609 34Th 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 1924
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
Floors
Year built1924
Total area1,659 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1577001A
Ownership

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

Owner name
Zou Family Trust
Mailing address
Zou Chao Wen & Jin Rui Wu T 607 34Th Ave San Francisco CA 94121
Last sale
072418

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.

609 34th Ave, San Francisco, CA 94121
607 34th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The Zou Family Trust property at 607-609 34th Avenue in the Outer Richmond is a two-unit multi-family residential building constructed in 1924, currently hosting two legal dwelling units. The building's history reveals significant regulatory scrutiny and permitting activity, particularly during 2012-2015, when the property underwent multiple legalizations and compliance actions. In 2012, the building faced several violations and complaints related to unauthorized unit conversions, including illegal kitchens and housing arrangements, which were ultimately addressed through proper permitting processes. These included the removal of illegal kitchens from the garage and laundry areas, along with the conversion and legalization of ground floor facilities, with permits totaling $30,000 for plumbing and electrical work. The most recent major improvement occurred in 2017, when additional ground floor kitchen facilities were properly permitted and installed.

The property has maintained compliance since these corrective actions, with no active building violations on record. Recent years have seen the majority of complaints relate to parking issues outside the building, with multiple reports between 2021 and 2024 regarding sidewalk and driveway obstructions, though most were either unable to be validated or resulted in citations. There have also been a couple of public works and illegal posting matters addressed in 2021. The building's current status is listed as compliant with all regulations, having successfully legalized its second unit in accordance with Ordinance No. 43-14.

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

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Risk rating

How 607-609 34Th 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
82th percentile

Out of 1040 buildings in this neighborhood, 187 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 85.4%
Moderate concern 9.7%
Severe concern 4.9%
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

607-609 34Th Ave event timeline

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

2024
311 Request Mar 17
Parking on sidewalk
Dark gray or black - Lexus - 6PUJ548

See all 2 events

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

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Every record we have

Full data for 607-609 34Th 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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