Free SF apartment background check

859-863 Clayton St

Cole Valley/Parnassus Heights, SF 94117 1271002 6 units · 3 fl · 1910

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 Cole Valley/Parnassus Heights
Above average
avg 0.9
1
FewerMore

This building has 1 novs (7y), above the Cole Valley/Parnassus Heights average of 0.9.

Rent & eviction protection

Is 859-863 Clayton 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 1910
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RH2
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 built1910
Total area4,935 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1271002
Ownership

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

Owner name
Ng 2002 Revocable Intervivo
Mailing address
Edmond S & Sophie W Ng Trus 530 11Th Ave San Francisco CA 94118
Last sale
030321

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.

863 A Clayton St, San Francisco, CA 94117
859 Clayton St, San Francisco, CA 94117
863 Clayton St, San Francisco, CA 94117
861 Clayton St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-story, 6-unit multi-family residential building at 859-863 Clayton Street, built in 1910, has undergone several significant improvements over the past decade to address safety and modernization requirements. Most notably, the building completed its mandatory soft-story retrofit in 2018-2020, costing approximately $138,000, to comply with earthquake safety regulations, and installed a new fire alarm system with monitoring in 2021 at a cost of nearly $19,000. The property added an accessory dwelling unit (ADU) to the ground floor in 2019, comprising two bedrooms, living room, kitchen, and bathroom. Recent improvements include comprehensive fire safety upgrades with sprinklers installed throughout the ground floor, electrical system modernization, and unit renovations, particularly in Unit #2, which received kitchen and bathroom remodels in 2018-2019. The building's mechanical systems have also been updated, including furnace installations and gas line modifications, with the most recent work being a kitchen drain replacement in 2023.

The building has a history of maintenance and compliance issues that have been addressed, including several violations related to interior surfaces, handrail requirements, and sanitation problems in the early 2000s. A notable complaint regarding mold in one unit was filed in 2007, and there were previous violations related to handrails and window repairs in 2005, though all these issues have been resolved. More recent fire safety concerns from 2017 were addressed, and the building's systems have largely been upgraded to current safety standards, including new sprinklers, fire alarms, and electrical systems. While there have been multiple reports of garbage and debris issues in the vicinity of the property (as evidenced by recent 311 calls), these appear to be related to street cleaning matters rather than building-specific maintenance issues. The property has maintained active compliance with San Francisco's housing and safety regulations, with all major retrofits and improvements completed, including the removal of the earthquake safety warning placard once the work was certified complete.

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

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Risk rating

How 859-863 Clayton 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
58th percentile

Out of 526 buildings in this neighborhood, 221 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Property class: mixed-use w/ SFR

Mixed-use property including a single-family residential component.

12-Month severity forecast
No violation 64.5%
Moderate concern 21.0%
Severe concern 14.6%
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

859-863 Clayton St event timeline

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

2025
Building Permit Mar 07
Unit-1 (unit in back of building): remodel (e) kitchen in kind-replace cabinet, counter top, sink in kind. remodel (e) bathroom in kind- replace sink, toilet, floor tiles in kind. new electrical sub panel, light and outlet. no change to floor layout. no change to wall layout. no structural work.
$30,000 · Complete
Plumbing PermitMar 07
One bathroom and kitchen remodel. (1)shower pan

See all 19 events

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

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Every record we have

Full data for 859-863 Clayton St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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