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725-735 14Th St

Duboce Triangle, SF 94114 3542038 6 units · 3 fl · 1911

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Duboce Triangle
Above average
avg 2.3
16
FewerMore

This building has 16 novs (7y), above the Duboce Triangle average of 2.3.

Rent & eviction protection

Is 725-735 14Th St 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 1911
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RM2
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
Units6
Floors3
Year built1911
Total area4,140 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3542038
Ownership

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

Owner name
So Albert Siu-Lun
Mailing address
4239a 21st St San Francisco CA 94114
Last sale
011607

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.

727 14th St, San Francisco, CA 94114
725 14th St, San Francisco, CA 94114
733 14th St, San Francisco, CA 94114
731 14th St, San Francisco, CA 94114
729 14th St, San Francisco, CA 94114
735 14th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The 6-unit, 3-story multi-family residential building at 725-735 14th Street, owned by So Albert Siu-lun, was constructed in 1911 and has undergone several significant upgrades to maintain safety and compliance with current codes. Most notably, in 2024, the building is receiving comprehensive fire alarm system upgrades, including the installation of manual pull stations, smoke detectors, and modern horn/strobe units with low-frequency sounders in sleeping areas, with work continuing as of April 2024. The property has completed its mandatory soft-story seismic retrofit, achieving compliance with the San Francisco building code, and underwent a seismic retrofit of the basement level in 2014.

The building faced notable maintenance challenges in early 2022, with multiple housing complaints regarding heating issues, lighting problems, and ceiling damage, though all these violations were abated by March 31, 2022. The building has shown responsiveness to regulatory requirements, with recent plumbing work completed in 2022 for wall heater installation, and completed electrical work in 2024 to upgrade fire safety systems. Historical records show periodic maintenance and upgrades including reroofing work in the 1990s and regular routine inspections. Recent 311 calls from late 2024 primarily concern exterior maintenance issues like graffiti and debris. A carbon monoxide detector activation incident was recorded with no actual CO detected, and there was one assistance call for an invalid individual, both with no civilian injuries reported.

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

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Risk rating

How 725-735 14Th St'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
6th percentile

Out of 287 buildings in this neighborhood, 270 are predicted to be safer.

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

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

Number of units

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

12-Month severity forecast
No violation 11.2%
Moderate concern 16.6%
Severe concern 72.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

725-735 14Th St apartment reviews

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The story over time

725-735 14Th St event timeline

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

2026
311 Request Jun 16
Not offensive
building commercial
311 RequestJun 07
Other

See all 18 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 725-735 14Th St 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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