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1050 Clay St

Nob Hill, SF 94108 0212015 5 units · 3 fl · 1911

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 1050 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 1911
2 or more units
5 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
Units5
Floors3
Year built1911
Total area3,624 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0212015
Ownership

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

Owner name
Yuet Har Wong Ma Revocable
Mailing address
Peter Davis Ma Succ Tte 829 Columba Ln Foster City CA 94404
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 1050 Clay Street in Nob Hill, owned by the Yuet Har Wong Ma Revocable Trust, houses 5 units and was constructed in 1911. The property has undergone several significant improvements to meet safety standards, most notably a mandatory soft-story seismic upgrade completed in 2015 at a cost of $50,000, bringing it into compliance with the 2012 IEBC requirements. Other maintenance work has included a roof replacement in 2011 costing $7,500. The building underwent routine housing inspections in the years 2000, 2002, 2009, and 2016, with the 2000 inspection revealing multiple safety concerns that were subsequently addressed by October 19, 2000. These violations included issues with fire safety equipment, security features, and gas system requirements, all of which were resolved.

Recent activity around the property has primarily involved street-level issues, with numerous 311 calls in 2024 regarding parking violations, abandoned vehicles, and garbage or debris on the street, though these external matters do not directly impact the building's condition or safety. The most recent internal building-related activity was a 2016 routine inspection, and there have been no documented fire incidents directly affecting the building. The property's compliance with the mandatory soft-story retrofit program is confirmed as "Work Complete, CFC Issued" under Tier 3, demonstrating adherence to current seismic safety requirements.

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

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Risk rating

How 1050 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
51th percentile

Out of 1125 buildings in this neighborhood, 551 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
64%
No DBI
violation
36%
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.

Number of units

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 43.8%
Moderate concern 35.1%
Severe concern 21.1%
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

1050 Clay St event timeline

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

2026
311 Request Apr 13
Garbage and debris
furniture

See all 8 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1050 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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