Free SF apartment background check

400-402 Pierce St

Hayes Valley, SF 94117 0826024 19 units · 4 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 Hayes Valley
Above average
avg 2.3
8
FewerMore

This building has 8 novs (7y), above the Hayes Valley average of 2.3.

Rent & eviction protection

Is 400-402 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
19 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
Units19
Floors4
Year built1900
Total area14,092 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0826024
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.

400 Pierce St, San Francisco, CA 94117
402 Pierce St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The 19-unit, 4-story apartment building at 400-402 Pierce Street in Hayes Valley, owned by Plaza Group LLC, was constructed in 1900 and has recently undergone several significant safety upgrades. Most notably, the building completed its mandatory soft-story retrofit in 2016 at a cost of $115,000, demonstrating compliance with San Francisco's seismic safety requirements. Recent fire safety improvements include two fire alarm upgrades filed in July 2023, with permits issued shortly thereafter, though a new violation related to sleeping area requirements was issued in December 2023. The building has experienced recurring fire safety concerns, with violations noted for blocked exits (2016 and 2019), sprinkler systems (2016), and extinguishers (2018 and 2022), though most have been corrected.

The property has undergone various unit improvements over the years, including kitchen and bathroom remodels in units #3 (2013), #9 (2018), and #12 (2016), along with window, siding, and general upkeep work. A significant cluster of violations was recorded in December 2021, addressing issues with ceilings, walls, floors, lights, and window seals, though these were abated by January 2022. The building has experienced multiple fire-related incidents, including gas leaks and smoke detector activations, though no civilian injuries were reported. Routine safety inspections have been conducted regularly, with the most recent violations focusing on fire safety equipment. Tenants should be aware of ongoing maintenance needs as evidenced by the recent sleeping area violation and periodic fire safety concerns, despite the building's overall investment in structural and safety improvements.

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

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Risk rating

How 400-402 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
16th percentile

Out of 1027 buildings in this neighborhood, 863 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
40%
No DBI
violation
60%
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.

Building size

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

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 39.7%
Moderate concern 49.1%
Severe concern 11.2%
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

400-402 Pierce St event timeline

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

2026
311 Request Apr 24
General maintenance not in list above
Residential Building
DBI ComplaintMar 12
Date last observed: 02-mar-26; floor: all; unit: all; exact location: main bldg; building type: residence/dwelling other plumbing; ; additional information: we (all of 402 pierce) have not had reliable/consistent hot water in 5 weeks. the property manager is not providing updates either. the longest the water will stay warm/"hot" is about 5 minutes if that. also i would like to remain anonymous;

See all 26 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 400-402 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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