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410 23Rd Ave

Central Richmond, SF 94121 1522034B 8 units · 3 fl · 1922

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Central Richmond — not a forecast
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 410 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 1922
2 or more units
8 units
Property type
Multi-Family Residential
Zoning
NC3
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1922
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units8
Floors3
Year built1922
Total area7,416 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1522034B
Ownership

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

Mailing address
James S Leong 1666 Chestnut St San Francisco CA 94123
Last sale

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

410 23rd Ave, San Francisco, CA 94121
5845 Geary Blvd, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 8-unit, 3-story multi-family residential building at 410 23rd Avenue in San Francisco's Central Richmond neighborhood, owned by the James S Leong Revocable Trust, has undergone significant improvements and maintenance since its construction in 1922. Most notably, the building completed a mandatory soft-story retrofit in 2016, addressing seismic safety requirements with the installation of wood shearwalls, hold downs, special moment frames, and reinforced concrete foundations, with the work categorized as Tier 4. Recent major improvements include a complete roof replacement in 2024 at a cost of $43,880 and a comprehensive fire alarm system upgrade in 2023 to meet current safety codes, demonstrating the owner's commitment to maintaining building safety standards.

The property has a history of addressing various maintenance and compliance issues, including a bathroom remodel in Unit 2 in 2019, restoration of electrical wiring in 2017, and resolution of multiple building violations in 2002 related to fire safety systems and egress. While there have been several complaints about the commercial portion of the property regarding vacant storefront ordinances between 2018-2020, these issues appear to have been resolved. Recent 311 calls show typical urban maintenance concerns including graffiti removal, pavement defects, and abandoned debris, with some issues still marked as open in 2023-2024. The building's historical records also show work from 1984 to bring the building up to code, reroofing in 1998, and various other improvements over the decades, indicating regular maintenance and upgrading of building systems.

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

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Risk rating

How 410 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
9thpercentile

Out of 2250 buildings in this neighborhood, 2048 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month risk forecast
Moderate failure risk 43%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

410 23Rd Ave apartment reviews

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On the map

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The story over time

410 23Rd Ave event timeline

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

2026
311 Request Jun 20
Garbage and debris
other loose garbage debris yard waste
311 RequestApr 20
Construction public

See all 20 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 410 23Rd Ave apartments

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

Side by side

How 410 23Rd Ave compares to the neighborhood

This building against comparable properties in Central Richmond. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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