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1504-1506 23Rd Ave

Central Sunset, SF 94122 1868038A 2 units · 2 fl · 1938

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 1504-1506 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 1938
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
Floors2
Year built1938
Total area2,729 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1868038A
Ownership

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

Owner name
Angela Wu 2005 Lvg Tr
Mailing address
Wu Angela 321 Hazel Ave Millbrae CA 94030
Last sale
050500

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.

1504 23rd Ave, San Francisco, CA 94122
1506 23rd Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The 1504-1506 23rd Avenue property in the Central Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1938 and currently owned by the Angela Wu 2005 Living Trust. The building has undergone several significant improvements in recent years, most notably a comprehensive kitchen and bathroom remodel currently in progress (August 2024) with a reported cost of $76,000, and the installation of a new fire alarm system (2024) that includes multiple safety features such as smoke detectors, manual pull stations, and low-frequency horns in sleeping areas to comply with fire safety codes. In 2021, the property underwent a significant modification with the legalization of an unauthorized first-floor unit, completed by Morris Architecture LLC, which involved relocating the kitchen counter and sink within the unit.

The building's maintenance history shows regular updates to essential systems, including recent plumbing work (2024) involving updates to bathroom and kitchen fixtures, and electrical improvements such as a new subpanel installation (2023). While there have been several 311 calls regarding street cleaning and garbage issues in the vicinity of the property throughout 2023-2024, these appears to be more related to general neighborhood conditions rather than building-specific problems. Historical records indicate a single fire-related incident in 2007 involving combustible materials, which was resolved within a month, and there have been no reported civilian injuries in any subsequent fire-related responses. The property's current improvements demonstrate ongoing investment in building safety and resident comfort, with particular attention to modernizing kitchen and bathroom facilities and enhancing fire safety systems.

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

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Risk rating

How 1504-1506 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
96th percentile

Out of 814 buildings in this neighborhood, 33 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month severity forecast
No violation 88.8%
Moderate concern 8.9%
Severe concern 2.3%
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

1504-1506 23Rd Ave event timeline

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

2026
311 Request Jun 06
Garbage and debris
furniture

See all 19 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1504-1506 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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