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2433 23Rd Ave

Parkside, SF 94116 2402002C 2 units · 2 fl · 1921

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 Parkside
At or below average
avg 0.8
0
FewerMore

This building has 0 novs (7y), at or below the Parkside average of 0.8.

Rent & eviction protection

Is 2433 23Rd 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 1921
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1921
Total area1,880 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2402002C
Ownership

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

Owner name
Kwan Fmly Tr
Mailing address
Kwan Henry N & Connie W Tru 1977 19Th Ave San Francisco CA 94116
Last sale
091817

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.

2433 23rd Ave, San Francisco, CA 94116
2433 A 23rd Ave, San Francisco, CA 94116
Augrented Insights
Initial analysis

The two-unit, two-story multi-family residential building at 2433 23rd Avenue in Parkside, owned by Kwan Family Trust, has undergone several significant modifications since its construction in 1921. The most notable recent development was the legalization of a second dwelling unit completed in 2018, consisting of a 670 sqft 1-bedroom, 1-bath apartment at the ground floor, following the city's Ordinance No.43-14. This process involved multiple permits, including a $13,100 legalization permit in 2015 and a revision to reconfigure rear stairs in 2018, along with corresponding electrical and plumbing upgrades for kitchen and laundry facilities. Earlier improvements from 1996 included the addition of rooms and a full bath on the ground floor, replacement of seven rear windows, bathroom remodeling, and termite control work.

The property has experienced several maintenance issues in recent months, with the most pressing being two sewage back-up incidents from the side sewer vent reported in December 2024. Other recent concerns include reports of excessive noise (still open as of December 2024), damaged side sewer vent cover, and multiple parking enforcement actions. While the building underwent substantial improvements in the 1990s and 2015-2018 period, the recent sewer-related problems and noise complaints may warrant attention. It's worth noting that the building has maintained compliance with unit count requirements, as evidenced by the January 2025 Rent Board call, which confirmed updates to the housing inventory. The property has also gone through regular seasonal maintenance challenges, as shown by multiple reports of Christmas tree disposal in January 2025 and various street cleaning issues.

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

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Risk rating

How 2433 23Rd 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
57th percentile

Out of 255 buildings in this neighborhood, 110 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 59.2%
Moderate concern 28.7%
Severe concern 12.1%
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

2433 23Rd Ave event timeline

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

2023
311 Request Aug 12
Blocking driveway cite tow
txtColor - txtModel - 9GHC159

See all 1 events

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

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Every record we have

Full data for 2433 23Rd Ave apartments

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

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