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418-428 Pierce St

Hayes Valley, SF 94117 0826026 7 units · 3 fl · 1900

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

NOVs (7y) vs. neighborhood
Compared to a typical building in Hayes Valley
At or below average
avg 2.3
2
FewerMore

This building has 2 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 418-428 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 1900
2 or more units
7 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units7
Floors3
Year built1900
Total area13,784 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0826026
Ownership

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

Owner name
Plaza Group, Llc
Mailing address
308 Jessie St San Francisco CA 94103
Last sale
031099

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.

428 Pierce St, San Francisco, CA 94117
424 Pierce St, San Francisco, CA 94117
418 Pierce St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The 3-story, 7-unit apartment building at 418-428 Pierce Street in Hayes Valley, owned by Plaza Group, LLC, was constructed in 1900 and has undergone several significant maintenance and safety upgrades over the years. Recent improvements include a 2015 kitchen and bathroom remodel with associated electrical work valued at $35,000, and a street space permit issued in 2017. The building's fire safety systems have received attention, with a complete fire alarm system replacement in 2013 and a roof access issue corrected in the same year. Historical records show multiple code violations in 2003 related to heating, mold, water damage, and lead paint concerns, all of which were addressed by September 2008. The building has experienced recurring heating system issues, with complaints in 2003 and 2012, though subsequent inspections showed these problems were resolved. Routine safety inspections have been conducted regularly, with the most recent occurring in 2017. Structural maintenance includes the application of vinyl siding in 1999 and 2003, and dry rot repairs in 2001, demonstrating ongoing maintenance efforts by the ownership. The property has had relatively few recent complaints, with the last significant issues being a noise complaint in 2021 and a street cleaning matter in 2023, both of which were resolved.

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

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Risk rating

How 418-428 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
20th percentile

Out of 1027 buildings in this neighborhood, 822 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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 units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

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 33.5%
Moderate concern 45.1%
Severe concern 21.3%
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

418-428 Pierce St event timeline

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

2026
311 Request Jan 23
Garbage and debris
other loose garbage debris yard waste
Building Violation (NOV)Jan 20
An emergency response inspection ha revealed smoke and water damage throughout unit, manager has turned off utilities at mains for safety, rendering the unit uninhabitable. code/section: sfbc 102a monthly monitoring fee applies code/section: 110a, table 1a-k

See all 11 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 418-428 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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