Free SF apartment background check

3660-3664 16Th St

Duboce Triangle, SF 94114 3561025 3 units · 2 fl · 1900

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 Duboce Triangle
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Duboce Triangle average of 2.3.

Rent & eviction protection

Is 3660-3664 16Th 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 1900
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1900
Total area2,903 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3561025
Ownership

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

Owner name
Zanco Trust The
Mailing address
Vernice Zanco 3140 Geary Blvd San Francisco CA 94118
Last sale
121495

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.

3664 16th St, San Francisco, CA 94114
3662 16th St, San Francisco, CA 94114
3660 16th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 3660-3664 16th Street is a two-story multi-family residential building located in the Duboce Triangle neighborhood, containing three units and built in 1900. The building has undergone several significant renovations and faced various maintenance challenges over the past two decades. Most recently, in April 2024, major interior renovations were proposed for units 3660 (including new bathrooms, bedroom modifications, and kitchen work) and 3662 (including bathroom and kitchen renovations), though these permits are currently in "Filed" status. The building has had recurring moisture-related issues, including documented mold problems in 2014 (affecting multiple units), and more recently in 2022 with water damage and mold identification work costing $2,000.

The property has a history of structural and maintenance concerns, including the replacement of damaged shingles in 2022 (costing $27,000), repairs to the front stair landing in 2017, and replacement of the rear wood stairway in 2015 (both required to address safety concerns). Previous building violations from 2001 and 2004 related to lead paint concerns, stair repair requirements, and security issues were all resolved by March 2004. There were also several maintenance-related complaints between 2014-2015, including reports of rot-damaged exterior elements, bathroom mold, and garage issues. While many historical violations have been addressed, the most recent developments suggest ongoing investment in unit improvements, with particular attention to addressing past water-related issues through current renovations. The property's age and history indicate regular maintenance challenges typical of historic buildings, though recent permitting activity shows continued investment in improvements.

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

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Risk rating

How 3660-3664 16Th 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
95th percentile

Out of 287 buildings in this neighborhood, 14 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

NOV rate, owner's portfolio

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

DBI complaints, owner's portfolio

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

12-Month severity forecast
No violation 70.1%
Moderate concern 19.1%
Severe concern 10.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3660-3664 16Th St apartment reviews

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The story over time

3660-3664 16Th St event timeline

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

2025
Building Permit Dec 15
No work oiin ground fl and 3rd fl. ovv2nd fl : 3662 16th st: construct firewall approx 9'8 above grade
$2,000 · Filed
Building PermitFeb 12
G/f #3660: construct 2 new bath, renovate e bath. demo partition wall to add new bedroom. relocate water heater/range. demo stair that connects g/f to 3/f. 2nd fl #3662: construct new bath 2, renovate e bath,renovate e kitchen.

See all 6 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3660-3664 16Th 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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