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21 Flood Ave

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

A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Sunnyside — not a forecast
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.

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 1908
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
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
Mailing address
21 Flood Ave San Francisco CA 94131
Last sale
—

Landlord portfolio

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

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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

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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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
10thpercentile

Out of 129 buildings in this neighborhood, 116 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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 risk forecast
High failure risk 62%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

21 Flood Ave apartment reviews

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On the map

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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.

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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.

Side by side

How 21 Flood Ave compares to the neighborhood

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