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671 24Th Ave

Central Richmond, SF 94121 1567010 2 units · 2 fl · 1992

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 Richmond
Above average
avg 0.5
6
FewerMore

This building has 6 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 671 24Th 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 1992
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 built1992
Total area2,828 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1567010
Ownership

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

Owner name
John T S Hung & Siew Yoong
Mailing address
Hung John T S & Siew Yoong 2533 Chestnut St San Francisco CA 94123
Last sale
060799

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 671 24th Avenue in San Francisco's Central Richmond district is a two-unit, two-story multi-family residential building constructed in 1992, currently owned by John T S Hung & Siew Yoong. The building underwent significant improvements in 1991 with both vertical and horizontal additions completed successfully. A notable sequence of violations occurred in April 2016, when multiple issues were identified including weatherproofing problems on the side wall, interior surface concerns including peeling paint (with lead hazard warnings), and other building violations, all of which were resolved by September 2016 following the issuance of several Notices of Violation. Earlier issues included a 2002 complaint about water leakage from the rear side of the building, which was promptly addressed.

The property has experienced various maintenance and environmental challenges over the years. A 1989 reroofing project appears to have expired without completion. In 2018, there was a reported problem with a collapsed sidewalk around a utility vault cover that required attention. The building faced some safety concerns in 2016-2018 with multiple instances of abandoned vehicles reported in the vicinity and issues with parking on the sidewalk, though these were typically resolved promptly. A fire-related complaint was logged in October 2018 and closed in May 2019 with conditions corrected. The most recent recorded incident was a general cleaning issue regarding loose garbage on the street in 2020, which was resolved. The property has maintained its legal compliance status since resolving the 2016 violations, with no active building violations on record as of the latest data.

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

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Risk rating

How 671 24Th 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
76th percentile

Out of 2250 buildings in this neighborhood, 540 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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.

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.

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 84.4%
Moderate concern 10.6%
Severe concern 4.9%
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

671 24Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 671 24Th 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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