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1391-1393 23Rd Ave

Central Sunset, SF 94122 1778017A 3 units · 3 fl · 1939

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 Central Sunset
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1391-1393 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 1939
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units3
Floors3
Year built1939
Total area2,352 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1778017A
Ownership

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

Owner name
Iong Matthew Ka Leong & Ann
Mailing address
38 Williar Ave San Francisco CA 94112
Last sale
081219

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.

1391 23rd Ave, San Francisco, CA 94122
1393 23rd Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1391-1393 23rd Avenue is a three-story, multi-family residential building constructed in 1939 in the Central Sunset neighborhood, currently owned by Iong Matthew Ka Leong & Ann and containing three units. The building has undergone several significant renovations over the past few decades, with the most substantial and recent improvements occurring in 2017, when two new bedrooms and two bathrooms were added to the ground floor, along with electrical upgrades including a new main panel and heater installations, at a cost of $60,000. These improvements were properly documented through building, plumbing, and electrical permits, demonstrating compliance with safety regulations. In 2016, the property received a kitchen remodel with new cabinets, countertops, and appliances in unit 1391, along with associated plumbing and electrical work.

The building's maintenance record shows attention to infrastructure needs, with earlier historical work including the rebuilding of rear stairs in 1997 and minor stucco repairs in 1990. The property has experienced some issues related to parking and street cleaning in the surrounding area, with multiple 311 calls recorded between 2019 and 2024 regarding illegal parking and garbage concerns, though these external issues do not directly affect the building's condition. The most recent 311 calls in 2024 were related to garbage and debris on the street, which were resolved by city agencies. A notable planning record indicates the addition of two bedrooms and two half-baths with indirect street access and window enlargements at the rear ground floor, though this appears to reference the previously documented 2017 renovations. The building's overall record suggests regular maintenance and responsible management, with no major safety concerns or building code violations on file.

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

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Risk rating

How 1391-1393 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
32th percentile

Out of 814 buildings in this neighborhood, 554 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Estimated permit spend (past 7 years)

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

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 63.1%
Moderate concern 24.0%
Severe concern 12.8%
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

1391-1393 23Rd Ave event timeline

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

2026
311 Request May 26
Not offensive
other
311 RequestJan 23
Public health

See all 3 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1391-1393 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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