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1558-1560 Clay St

Nob Hill, SF 94109 0217011 2 units · 2 fl · 1908

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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1558-1560 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 1908
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM3
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 built1908
Total area2,266 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0217011
Ownership

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

Owner name
Bow & Jennie Wong Family Tr
Mailing address
Wong Jonathan, Ttee 325 Colon Ave San Francisco CA 94127
Last sale
000000

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.

1558 Clay St, San Francisco, CA 94109
1560 Clay St, San Francisco, CA 94109
Augrented Insights
Initial analysis

This two-unit residential building, located at 1558-1560 Clay Street in the Nob Hill neighborhood, is a 2-story flats/duplex structure built in 1908 and currently owned by the Bow & Jennie Wong Family Trust. The property has undergone significant renovations in recent years, most notably in 2023, when approximately 1,000+ square feet of habitable space was created in the existing ground floor utility areas, including a kitchenette, wine room, gym, media room, and bathroom, with associated plumbing and electrical work costing $180,000. This project required multiple permits and revisions, including a recent November 2024 revision to document the removal of a non-load bearing wall between the media room and hallway.

The building's maintenance history shows attention to safety features, including the replacement of rear egress stairs in 2019 (costing $20,000) and the removal of a problematic utility ladder in 2010 following a violation notice. Historical plumbing issues were documented in 2003 regarding sewage leaks between buildings, but these were promptly addressed within days of being reported. The property underwent various improvements in the early 1990s, including kitchen and bathroom remodels. Recent infrastructure upgrades include a heat pump installation (2023) and the addition of a new subpanel with 200-amp service. A tenant buyout occurred in May 2022 for $25,000, involving one tenant at 1560 Clay Street. The building's recent maintenance and improvement history suggests active property management, with most recent permits showing completed work rather than outstanding maintenance issues.

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

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Risk rating

How 1558-1560 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
98th percentile

Out of 1125 buildings in this neighborhood, 22 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 (ZIP code)

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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 89.9%
Moderate concern 7.8%
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.
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The story over time

1558-1560 Clay St event timeline

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

2026
Building Permit Jun 03
Restore the original bedroom("chamber") shown on the 1907 approved floor plans titled building for mr. h. seiler-copy attached.
$1 · Issued

See all 15 events

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

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Every record we have

Full data for 1558-1560 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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