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735-739 Clay St

Financial District North, SF 94108 0226045 3 units · 3 fl · 1907

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 Financial District North
At or below average
avg 3.2
0
FewerMore

This building has 0 novs (7y), at or below the Financial District North average of 3.2.

Rent & eviction protection

Is 735-739 Clay 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 1907
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
CCB
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 built1907
Total area5,222 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0226045
Ownership

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

Owner name
Kwong Sang Investment Llc
Mailing address
616 Grant Ave San Francisco CA 94108
Last sale
051619

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.

739 Clay St, San Francisco, CA 94108
735 Clay St, San Francisco, CA 94108
Augrented Insights
Initial analysis

The three-story multi-family residential building at 735-739 Clay Street, constructed in 1907 and owned by Kwong Sang Investment LLC, contains four units and includes both residential and commercial space. The property has undergone several significant safety improvements, including a seismic retrofit in 2001 costing $30,000, and has had multiple fire safety-related incidents and violations, particularly notable in recent years. The building experienced three separate fire code violations between 2017-2023, including issues with fire extinguishers, alarm systems, and exit maintenance, though all were subsequently corrected or abated. The property has also faced irrigation and maintenance challenges, as evidenced by multiple 311 calls regarding garbage, debris, and graffiti between 2024-2025. Two notable planning records include an illegal short-term rental case from 2023 that was resolved prior to the issuance of any formal notice and a conditional use authorization request regarding unit merging from 2023 that was ultimately cancelled. Two fire incidents were recorded - one at 744 Clay Street with detector activation and another at 735 Clay Street with a malfunctioning alarm system, neither resulting in civilian injuries.

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

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Risk rating

How 735-739 Clay 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
71th percentile

Out of 145 buildings in this neighborhood, 42 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No DBI
violation
23%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 56.0%
Moderate concern 38.1%
Severe concern 5.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

735-739 Clay St apartment reviews

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The story over time

735-739 Clay St event timeline

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

2026
311 Request Apr 21
Not offensive
building commercial
311 RequestApr 01
Water leak

See all 15 events

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

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Every record we have

Full data for 735-739 Clay 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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