Free SF apartment background check

21 Flood Ave

Sunnyside, SF 94131 6776001 2 units · 2 fl · 1908

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 Sunnyside
Above average
avg 1.9
2
FewerMore

This building has 2 novs (7y), above the Sunnyside average of 1.9.

Rent & eviction protection

Is 21 Flood Ave 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 1908
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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
Units2
Floors2
Year built1908
Total area3,328 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6776001
Ownership

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

Owner name
Moran Ofelia
Mailing address
21 Flood Ave San Francisco CA 94131
Last sale
042919

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

Unlock complete report
Augrented Insights
Initial analysis

21 Flood Avenue is a two-family residential building constructed in 1908, owned by Ofelia Moran, that has undergone numerous significant and concerning changes over the years. Most notably, in October 2020, the property experienced a concerning series of events including a kitchen fire, electrical issues, and safety violations, revealing that the building had been illegally converted from its permitted two-family dwelling status into five separate units with five kitchens. This unauthorized conversion led to the issuance of multiple notices of violation (NOVs) in October 2020, with specific concerns about blocked egress stairs, unsecured roof access, and burned wiring. The building's safety issues were further highlighted by a complaint in October 2020 regarding hazardous outlet wiring, exposed wiring, and deteriorated electrical equipment, with reports of tenants living in a red-tagged building and using extension cords from vehicles, though notably, these complaints emerged after the fire incident.

In response to the regulatory findings, a permit was issued in January 2023 to remove two unauthorized basement units and one unauthorized first-floor unit, with an estimated cost of $4,000. Prior to these recent issues, the property had historical compliance matters, including a 2018 permit for various abatement work, notably the removal of unauthorized structures including sheds and fencing, which had been the subject of a 2008 violation. The building underwent some permitted modifications in the late 1980s including stair relocation and bathroom construction. Recent 311 calls from late 2024 show ongoing concerns with garbage and debris management around the property, though these are not directly related to the building's structural or safety issues. The building's history reflects a pattern of unauthorized construction and occupancy modifications, culminating in the most recent efforts to return the property to its original two-unit configuration as required by city enforcement actions.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 21 Flood Ave'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
10th percentile

Out of 129 buildings in this neighborhood, 116 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
38%
No DBI
violation
62%
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.

Building age

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

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

12-Month severity forecast
No violation 29.4%
Moderate concern 44.6%
Severe concern 26.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

21 Flood Ave apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

21 Flood Ave event timeline

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

2026
DBI Complaint Mar 20
Date last observed: 19-mar-26; exact location: main bldg; building type: residence/dwelling work w/o permit;
Building Inspection Division

See all 19 events

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

Unlock complete timeline
Every record we have

Full data for 21 Flood Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

Watch 21 Flood Ave
Get alerted the moment a new violation or complaint is filed.