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3678-3680 16Th St

Duboce Triangle, SF 94114 3561029 3 units · 3 fl · 1900

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Duboce Triangle
At or below average
avg 2.3
1
FewerMore

This building has 1 novs (7y), at or below the Duboce Triangle average of 2.3.

Rent & eviction protection

Is 3678-3680 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1900
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units3
Floors3
Year built1900
Total area4,185 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3561029
Ownership

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

Mailing address
1428 6th St Apt 306 Santa Monica CA 90401
Last sale
050620

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.

3678 16th St, San Francisco, CA 94114
3680 16th St, San Francisco, CA 94114
3680 A 16th St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The property at 3678-3680 16th Street in the Duboce Triangle is a two-unit multi-family residential building constructed in 1900, currently owned by 3680 16th Street LLC. The building underwent significant renovation between 2019-2021, converting an existing workshop and storage space into an additional dwelling unit and performing extensive bathroom and kitchen remodels on all floors, including addressing severe dry rot issues. A comprehensive fire safety upgrade was completed in 2020-2021, including the installation of a new fire sprinkler system throughout the building at a cost of $38,600, with subsequent monitoring system installation.

The property has experienced several concerning issues in recent years, particularly related to water management and drainage. Multiple complaints from 2021-2023 indicate problematic drainage systems and water damage affecting neighboring properties, though some of these complaints have since been closed. Additional concerns emerged in 2023 regarding unpermitted demolition and excavation work in the rear garage and backyard areas, with ongoing complaints about unauthorized concrete removal. The building's infrastructure received attention through various permits, including sewer replacement work in 2021 and the installation of new furnaces in 2020. Historical records show earlier maintenance work included reroofing in 2007 and addressing dry rot concerns through multiple permits. The property has had three recorded fire alarm-related incidents between 2019-2021, though none resulted in injuries or significant damage.

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

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Risk rating

How 3678-3680 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
18th percentile

Out of 287 buildings in this neighborhood, 235 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
48%
No DBI
violation
52%
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.

DBI tenant complaints (past 7 years)

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

DBI complaints, owner's portfolio

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

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 47.8%
Moderate concern 45.3%
Severe concern 6.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3678-3680 16Th St apartment reviews

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The story over time

3678-3680 16Th St event timeline

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

2025
Building Permit Jul 31
Comply w/planning nov 20220115359 enf work replacement in-kind; filing in of rear 1sr fl wall including installing of windows & door; leveling roof over rear porch; replacing of rear stair and landing (in-kind) from 3rd fl to rear yard and stair from 2nd fl to rear yard to comply with
$1 · Complete

See all 19 events

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

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Every record we have

Full data for 3678-3680 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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