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3549-3551 Pierce St

Marina, SF 94123 0441B007 3 units · 4 fl · 1925

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 Marina
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Marina average of 1.1.

Rent & eviction protection

Is 3549-3551 Pierce 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 1925
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
Floors4
Year built1925
Total area3,813 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0441B007
Ownership

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

Owner name
Pisoni Tiffany
Mailing address
3551 Pierce St San Francisco CA 94123
Last sale
040721

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.

3551 Pierce St, San Francisco, CA 94123
3549 Pierce St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 3549-3551 Pierce Street in the Marina neighborhood is a two-story flats and duplex structure built in 1925, currently owned by Tiffany Pisoni. The property has undergone several significant improvements over the past two decades, with the most substantial being a fourth-floor addition completed in 2015 at a cost of $244,888, which included new stucco exterior, matching roof, automatic sprinklers throughout, and bathroom additions. This major modification was followed by comprehensive plumbing and electrical work in 2017, including ground floor kitchen and bath remodeling and the addition of two full baths. The building's maintenance history shows consistent attention to structural elements, particularly regarding stairs, with repairs and replacements documented in 1995 and 2006.

Recent records indicate some concerning patterns, particularly regarding sewer issues, with documented backups in 2022 and 2021 through the 4-inch sewer vent system. Building inspections in 2020 and 2021 resulted in findings related to failure to protect, though specific details were not disclosed in the records. There was one environmental health complaint transferred to DBI Building Inspection in November 2019, and multiple building inspection requests were made, suggesting periodic monitoring of building conditions. More recent incidents include a closed case in September 2023 regarding an abandoned vehicle, which was resolved with a citation. The property underwent significant infrastructure improvements in 2017, including both plumbing and electrical upgrades, suggesting recent investment in the building's core systems.

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

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Risk rating

How 3549-3551 Pierce 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
82th percentile

Out of 988 buildings in this neighborhood, 178 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Number of floors

Building height affects maintenance complexity and is one of the size signals the model uses.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 74.6%
Moderate concern 12.1%
Severe concern 13.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

3549-3551 Pierce St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 3549-3551 Pierce 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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