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536 Thornton Ave

Silver Terrace, SF 94124 5353B016 10 units · 2 fl · 1964

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Silver Terrace
Above average
avg 1.5
19
FewerMore

This building has 19 novs (7y), above the Silver Terrace average of 1.5.

Rent & eviction protection

Is 536 Thornton Ave 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 1964
2 or more units
10 units
Property type
Multi-Family Residential
Zoning
NC1
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
Units10
Floors2
Year built1964
Total area6,216 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5353B016
Ownership

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

Owner name
Topango Group Revoc Tr
Mailing address
Sullivan N A Ttee 172 Alta Ave Santa Cruz CA 95060
Last sale
080720

Landlord portfolio

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

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Augrented Insights
Initial analysis

536 Thornton Avenue is a two-story, 10-unit multi-family residential building constructed in 1964, currently owned by Topango Group Revoc Tr. The property has undergone several significant improvements over the years, with the most recent being a comprehensive remodel of Unit #10 in 2022 costing $25,000, which included updates to the bathroom, kitchen, flooring, and other interior features. The building completed mandatory safety upgrades including a soft-story retrofit in 2018 ($80,000) and garage fire-rated ceiling repairs in 2017 to address safety violations. Historical maintenance records show attention to fire safety systems, including the addition of a sprinkler head to the trash room (2007) and various fire system inspections with no merit findings in 2018-2022.

The property has experienced periodic maintenance issues, particularly in 2017 when multiple violations were recorded regarding fire safety, mold, wall damage, and combustible storage, though all were subsequently abated. A building fire incident with one civilian injury was recorded, though the date and specific details are not provided in the records. Recent concerns have primarily centered around parking violations and sidewalk maintenance, with multiple reports of sidewalk parking and some garbage debris issues in early 2025. The building's structural integrity appears to have been prioritized, with completed repairs for dry rot and other maintenance needs in previous years, including a reroofing project completed in 2018.

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

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Risk rating

How 536 Thornton Ave'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
0th percentile

Out of 71 buildings in this neighborhood, 71 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
13%
No DBI
violation
87%
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.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 6.7%
Moderate concern 18.7%
Severe concern 74.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

536 Thornton Ave apartment reviews

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The story over time

536 Thornton Ave event timeline

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

2026
311 Request Mar 10
Abandoned vehicle
Parking Enforcement

See all 16 events

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

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Every record we have

Full data for 536 Thornton Ave 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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