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516-518 4Th Ave

Inner Richmond, SF 94118 1546035

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 Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 516-518 4Th 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 2008
2 or more units
? units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units
Floors3
Year built2008
Total area4,081 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1546035
Ownership

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

Owner name
Zhou/Chen Fmly Tr 2016
Mailing address
Jian Hua Zhou & Li Rong Che 518 4Th Ave San Francisco CA 94118
Last sale
062812

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.

516 04th Ave, San Francisco, CA 94118
518 04th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The three-story multi-family residential building at 516-518 4th Avenue in San Francisco's Inner Richmond neighborhood was constructed in 2008 following a significant expansion project that began in late 2005, with a reported cost of $565,000. The building was designed as a flats and duplex structure, with the Zhou/Chen Family Trust purchasing the property in 2016. The construction included comprehensive safety features such as a fire sprinkler system with 67 heads (installed at a cost of $13,800 in 2008), and an extensive electrical installation with 48 lights, 40 switches, 60 receptacles, 24 circuits, and additional appliances including dishwashers and garbage disposals. During the construction phase, there was one building complaint filed in October 2005 regarding unauthorized construction and debris, though this was promptly resolved within four days.

The building has experienced some maintenance and habitability issues, most notably in 2016 when two complaints were filed simultaneously: one regarding persistent sewer odor issues in the bottom unit, and another concerning lack of heating for three months. Records also show significant plumbing improvements in 2008, including the installation of six and a half bathrooms, two kitchens, and laundry facilities with new gas piping. The property has been generally well-maintained since completion, with only routine municipal service calls recorded in recent years, including a 2022 street cleaning issue involving loose garbage, and two instances of pole graffiti in 2017 and 2014. While the building's permits and work history demonstrate a comprehensive approach to safety and amenities during construction, the 2016 complaints regarding heating and plumbing suggest there may have been some initial post-construction teething issues, though these complaints are no longer active in the system.

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

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Risk rating

How 516-518 4Th 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
100th percentile

Out of 1723 buildings in this neighborhood, 0 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
96%
No DBI
violation
4%
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.

Building size

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

Construction spend, owner's portfolio

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 90.5%
Moderate concern 6.0%
Severe concern 3.4%
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

516-518 4Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 516-518 4Th 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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