Free SF apartment background check

3371 21St St

Eureka Valley/Dolores Heights, SF 94110 3617068 2 units · 2 fl · 1900

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3371 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1900
Total area2,400 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3617068
Ownership

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

Owner name
Krakower Fmly Tr
Mailing address
Krakower David & Estrelita 1410 Lexington Ave San Mateo CA 94402
Last sale
000000

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The property at 3371 21st Street is a two-unit, two-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood, built in 1900 and currently owned by the Krakower Family Trust. The building has a documented history of sewer-related issues, with four sewer backup incidents reported between 2021 and 2024, including the most recent occurrence in January 2024. The electrical system was updated in 2003 with an underground service conversion to a 100-amp, two-meter system. A significant building complaint was filed in July 2000, detailing multiple maintenance issues including pest problems, unsanitary kitchen conditions, inadequate heating, window problems, and security concerns with the sliding door, though this complaint was marked as abated on the same day. More recent infrastructure concerns include tree maintenance issues near the building in 2024, with one case still open as of June 2024. The property has undergone limited documented improvements, including a reroofing project from 1994, whose permit has since expired.

The building has experienced recurring maintenance challenges, particularly relating to the sewer system, with multiple service requests showing consistent problems with the 4-inch sewer vent. Other documented incidents include vehicle parking violations in October 2022 and a complaint about waste receptacle management in March 2021, though these were resolved with no ongoing implications for residents. The property's age and limited record of major renovations or improvements since the turn of the century suggest it may be operating with relatively dated infrastructure systems, though the electrical update in 2003 indicates some modernization efforts have been made. The significant period between the initial building complaint in 2000 and subsequent incidents suggests that while the property has faced various maintenance challenges, these have generally been addressed through normal municipal service channels.

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 3371 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
63th percentile

Out of 1278 buildings in this neighborhood, 473 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 81.6%
Moderate concern 12.0%
Severe concern 6.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3371 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

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

3371 21St St event timeline

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

2026
311 Request Apr 30
Parking on sidewalk
Parking Enforcement

See all 1 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 3371 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.

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 3371 21St St
Get alerted the moment a new violation or complaint is filed.