Free SF apartment background check

2411 23Rd Ave

Parkside, SF 94116 2402033 8 units · 2 fl · 1958

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 Parkside
At or below average
avg 0.8
0
FewerMore

This building has 0 novs (7y), at or below the Parkside average of 0.8.

Rent & eviction protection

Is 2411 23Rd 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 1958
2 or more units
8 units
Property type
Multi-Family Residential
Zoning
NC2
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
Units8
Floors2
Year built1958
Total area6,240 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2402033
Ownership

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

Owner name
S&P Ng Family Trust 2007
Mailing address
Samuel Yeung Yin & Patricia 950 Stockton St Ste 403 San Francisco CA 94108
Last sale
070198

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

2411 23rd Ave is a two-story, 8-unit multi-family residential building constructed in 1958, currently owned by S&P Ng Family Trust 2007. The property has undergone several significant safety upgrades in recent years, including a completed soft-story retrofit in 2017 (estimated cost $65,000) as part of the city's seismic safety requirements and the installation of low-frequency fire alarm sounders in sleeping areas to enhance fire safety in 2017. The building's maintenance history shows attention to basic infrastructure needs, with completed projects including a reroofing in 2009 ($8,600), window replacements in 2009, and a fire alarm system upgrade.

The building has experienced multiple maintenance and safety issues over the years, with some persistent concerns. Notable recent issues include a complaint in October 2024 regarding possible illegal group housing and heating problems. A significant incident occurred in 2011 involving a hole between the garage and bathroom causing air quality issues and the presence of abandoned vehicles. The building underwent various safety corrections in 2001, addressing multiple violations including lead paint concerns, fire escape egress, and fire door requirements, though all these violations were abated by February 2001. More recent complaints (2023-2024) primarily relate to exterior maintenance and parking issues, with multiple reports of vehicles blocking driveways and sidewalk parking. Two fire-related incidents were recorded, both involving alarm systems in 2011 and 2017, with conditions corrected promptly. The property has maintained compliance with soft-story retrofit requirements and has received regular attention to fire safety systems, suggesting ongoing management attention to critical safety systems.

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 2411 23Rd 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
12th percentile

Out of 255 buildings in this neighborhood, 224 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
46%
No DBI
violation
54%
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.

NOV rate, owner's portfolio

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month severity forecast
No violation 35.8%
Moderate concern 28.8%
Severe concern 35.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2411 23Rd 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

2411 23Rd Ave event timeline

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

2025
311 Request May 16
Blocking driveway cite tow
Parking Enforcement

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 2411 23Rd 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 2411 23Rd Ave
Get alerted the moment a new violation or complaint is filed.