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683-685 44Th Ave

Outer Richmond, SF 94121 1587015 2 units · 2 fl

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 683-685 44Th 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 unknown
2 or more units
2 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
Units2
Floors2
Year built—
Total area2,472 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1587015
Ownership

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

Owner name
Choi San San & Wu Hai Feng
Mailing address
Chun Serena Lau & Kelvin Fu 683 44Th Ave San Francisco CA 94121
Last sale
010821

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.

683 44th Ave, San Francisco, CA 94121
685 44th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 683-685 44th Avenue in San Francisco's Outer Richmond neighborhood is a two-story flats and duplex structure built in 1946, currently owned by Choi San San and Wu Hai Feng. The property has undergone significant recent renovations, with major improvements completed in 2020-2021 including comprehensive upgrades to all three floors: the ground floor received a new media room and half bathroom with relocated utilities, while both the second and third floors underwent kitchen and bathroom remodels with the addition of new bathrooms. The second floor renovation also included conversion of an existing dining room into a bedroom. These projects were accompanied by complete electrical rewiring of the unit and coordinated plumbing work, all with proper permits and completed status.

The building's maintenance history shows attention to structural and safety issues, with a foundation replacement project filed in 2015 (though its current status is unclear in the records), and earlier improvements including window installations in 2010 and 1993, a reroofing project in 1995, and dry rot repairs in 1993. The property has experienced some typical urban neighborhood issues, as evidenced by three parking enforcement calls between 2019-2022 regarding driveway blocking, and two reports about trash container management in 2016, though these appear to have been resolved. Importantly, there are no recorded safety violations, building code infractions, or other concerning incidents in the provided data, suggesting the property is well-maintained and compliant with current regulations.

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

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Risk rating

How 683-685 44Th 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
90th percentile

Out of 1040 buildings in this neighborhood, 104 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 86.7%
Moderate concern 10.5%
Severe concern 2.7%
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

683-685 44Th Ave event timeline

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

2021
Plumbing Permit Feb 18
Upgrade kitchen, bathroom, and add a new bathroom- 2nd floor
Complete
Plumbing PermitFeb 18
Add a half bathroom in a new media room on 1st floor.

See all 9 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 683-685 44Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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