Free SF apartment background check

1455-1457 11Th Ave

Inner Sunset, SF 94122 1842011 4 units · 1 fl · 1909

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 Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1455-1457 11Th 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 1909
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units4
Floors1
Year built1909
Total area2,330 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1842011
Ownership

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

Owner name
Villa Vianza Llc
Mailing address
Tonella Timothy 1032 Irving St # 126 San Francisco CA 94122
Last sale
120208

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.

1457 A 11th Ave, San Francisco, CA 94122
1457 11th Ave, San Francisco, CA 94122
1455 11th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1455-1457 11th Avenue in the Inner Sunset is a one-story multi-family residential building constructed in 1909, currently owned by Villa Vianza LLC. The main building consists of four units and has undergone several significant modifications over the years. The most substantial recent changes occurred in 2014 when a rear cottage was legalized as a separate single-family dwelling (1457A), requiring various modifications including fire safety improvements and the installation of fire sprinkler heads. In 2004, the front building underwent notable repairs including addressing dry rot issues (costing $14,000), and work was done to replace a stucco banister with an iron guardrail. More recently, in 2021, a new gas line was installed from the house to the meter, and there have been routine safety inspections showing some fire safety equipment maintenance issues, though these were all properly addressed.

The property's recent history shows several community-related issues outside the building, including multiple parking enforcement cases for driveway blocking in 2024, and ongoing maintenance matters such as a tree root affecting the sidewalk (opened in 2021) and a curb defect reported in 2020. Historical building violations from 2001 and 2011 related to fire extinguishers and exterior lighting were all abated, and the only current open complaints involve external matters rather than building conditions. The property has maintained its compliance with housing safety requirements, as demonstrated by the resolution of previous violations and the proper handling of recent maintenance needs.

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 1455-1457 11Th 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
41th percentile

Out of 1493 buildings in this neighborhood, 881 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
76%
No DBI
violation
24%
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.

Director's hearing rate, owner's portfolio

Per-building rate of director's hearings across the owner's portfolio.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 68.6%
Moderate concern 15.0%
Severe concern 16.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1455-1457 11Th 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

1455-1457 11Th Ave event timeline

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

2021
Plumbing Permit Jun 21
Work category: 1p; provide new gas line from house to meter
Complete

See all 1 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 1455-1457 11Th 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 1455-1457 11Th Ave
Get alerted the moment a new violation or complaint is filed.