Free SF apartment background check

3600 21St St

Eureka Valley/Dolores Heights, SF 94114 3605073 30 units · 3 fl · 1963

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 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 3600 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 1963
2 or more units
30 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
Units30
Floors3
Year built1963
Total area22,624 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3605073
Ownership

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

Owner name
Pietro & Pietro
Mailing address
325 West Poplar 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 30-unit apartment building at 3600 21st Street, owned by Pietro & Pietro, is a three-story multi-family residential structure built in 1963. The property has undergone several significant safety and maintenance upgrades over the years, with the most recent being a comprehensive fire alarm system upgrade (costing $100,600) scheduled for completion in 2024 to comply with current fire codes. Other major improvements include a complete reroofing project completed in 2022 ($92,190), the installation of a 12.74 kW solar PV system in 2022, and a mandatory soft-story retrofit completed in 2016 to enhance seismic safety. The building has experienced recurring fire safety issues, with multiple violations and complaints between 2020 and 2023 related to alarm systems, fire extinguishers, sprinkler systems, and sleeping area requirements, though most have been corrected.

The property has a history of various maintenance and safety-related incidents, including a significant 2013 incident involving a vehicle crashing through the rear fence and downhill into neighboring yards. Routine inspections have revealed various issues over the years, including a 2008 complaint about termite damage and water leaks. More recent concerns have centered around construction activity, with complaints about early morning work in 2023 and general construction noise in 2019. The building's front facade has received attention over the years, with window replacements and stucco work completed in 2006. Regular fire safety inspections have documented various compliance issues, with the most recent being a sleeping area violation from November 2023 that remains open. The property has maintained its soft-story retrofit compliance status as a Tier 2 building with work completed and CFC issued.

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 3600 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
5th percentile

Out of 1278 buildings in this neighborhood, 1214 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
28%
No DBI
violation
72%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 24.2%
Moderate concern 61.0%
Severe concern 14.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3600 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

3600 21St St event timeline

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

2025
Electrical Permit Oct 22
30 unit 6 story building replacing fas devices to comply with sffc sec. 1103.7.6.1 ref pa# 202407116228 original e202407115536
Complete

See all 14 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 3600 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 3600 21St St
Get alerted the moment a new violation or complaint is filed.