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1555-1559 Clay St

Nob Hill, SF 94109 0218021 3 units · 2 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 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 1555-1559 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
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
Units3
Floors2
Year built1907
Total area4,115 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0218021
Ownership

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

Owner name
Wong Leland
Mailing address
1557 Clay St San Francisco CA 94109
Last sale
020620

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.

1559 Clay St, San Francisco, CA 94109
1555 Clay St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 1555-1559 Clay Street in Nob Hill, owned by Leland Wong, is a two-story flats and duplex structure built in 1907. The property has undergone several notable modifications over the years, including a significant kitchen relocation and family room conversion project completed in 2018 at a cost of $30,000, as well as a completed horizontal addition from 1998. A concerning safety issue was reported in 1997 regarding defective fireproofing in the rearside passageway ceiling, which was potentially asbestos-containing, though this complaint was promptly abated within four days.

Recent activity at the property has primarily involved external maintenance and enforcement matters. In 2023, there was a documented case of driveway blocking resulting in a citation, following a similar incident in 2019. The building's immediate surroundings have experienced periodic issues with street cleanliness, with multiple reports of human/animal waste and loose garbage between 2018 and 2019, though these were promptly addressed. An inspection of a tree maintenance request in December 2022 concluded that the tree was not an urgent safety hazard. Of particular note is a tenant buyout reported in May 2018 at 1559 Clay Street, where a payment of $25,000 was made to one tenant. The building has maintained a relatively low number of complaints and violations over recent years, with most reported issues being routine municipal service matters rather than significant building-specific concerns.

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

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Risk rating

How 1555-1559 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
62th percentile

Out of 1125 buildings in this neighborhood, 428 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Neighborhood (ZIP code)

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

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 43.2%
Moderate concern 17.1%
Severe concern 39.7%
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

1555-1559 Clay St 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 1555-1559 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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