Free SF apartment background check

3266-3274 21St St

Inner Mission, SF 94110 3609023 36 units · 6 fl · 1927

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
30
FewerMore

This building has 30 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 3266-3274 21St 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 1927
2 or more units
36 units
Property type
Multi-Family Residential
Zoning
NC3
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
Units36
Floors6
Year built1927
Total area25,679 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3609023
Ownership

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

Owner name
Sf Multifamily V Prop Owner
Mailing address
49 Powell St Fl 4 San Francisco CA 94102
Last sale
052621

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

3270 21st St, San Francisco, CA 94110
3266 21st St, San Francisco, CA 94110
3274 21st St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The six-story, 36-unit apartment building at 3266-3274 21st Street in the Inner Mission, built in 1927, is currently facing several significant maintenance and safety concerns. Most notably, there are active complaints from 2024 regarding broken glass window panes, windows not closing properly, and a concerning detachment of concrete from the parapet revealing exposed rebar. The building has experienced recurring elevator issues, with complaints in 2022 and 2024 documenting outages affecting disabled residents. A cluster of violations was recorded in August 2022, including problems with smoke detectors, stairway doors, elevator service, plumbing issues, and general maintenance concerns, though these were officially abated by November 2022.

The property has undergone various improvements and renovations in recent years, including multiple unit remodels (notably Unit 406 in 2023), kitchen and bathroom updates, and the proposed addition of three ADUs on the ground floor. A major fire alarm system installation was completed in 2020, following earlier complaints about alarm systems in 2008 and 2020. The building's maintenance history shows attention to plumbing infrastructure, with multiple updates to fixtures and systems, including boiler replacements in 2019 and 2009. Recent construction work has focused on ADA compliance, with plans for power door operators at exterior and interior entrances. However, the persistence of infrastructure issues, particularly regarding the elevator and recent safety concerns, suggests ongoing challenges with building maintenance and resident services.

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 3266-3274 21St 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
0th percentile

Out of 2380 buildings in this neighborhood, 2380 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
9%
No DBI
violation
91%
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.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 7.7%
Moderate concern 38.8%
Severe concern 53.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3266-3274 21St St 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

Create account

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

3266-3274 21St St event timeline

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

2026
311 Request May 16
Garbage and debris
human waste or urine
311 RequestMay 14
Garbage and debris

See all 37 events

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

Unlock complete timeline
Every record we have

Full data for 3266-3274 21St St 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.

Search another address Get full report
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
Most Popular Current plan

Renter

For the weeks when the stakes are highest

$10/mo

Billed $120/year — save $24 vs monthly

  • Unlimited basic reports
  • 5 premium AI reports per month
  • Download PDF & Excel reports
  • Full public records (200 rows per dataset)
  • Full event timeline — every year of history
  • Landlord portfolio & ownership insights
Start Your Search

Less than $0.34/day. Cancel anytime.

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

Watch 3266-3274 21St St
Get alerted the moment a new violation or complaint is filed.