Free SF apartment background check

50 Stanyan Blvd

Lone Mountain, SF 94118 1085040 11 units · 2 fl · 1962

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Lone Mountain
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Lone Mountain average of 0.9.

Rent & eviction protection

Is 50 Stanyan Blvd 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 1962
2 or more units
11 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
Units11
Floors2
Year built1962
Total area7,836 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1085040
Ownership

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

Owner name
Toy Donald & Liang Rita
Mailing address
6215 Skyline Blvd Hillsborough CA 94010
Last sale
030821

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, 11-unit multi-family residential building at 50 Stanyan Blvd in the Lone Mountain neighborhood, owned by Toy Donald & Liang Rita, was constructed in 1962 and has undergone several significant improvements over the years. Most notably, the building completed a mandatory soft-story retrofit in 2016-2018 (as a Tier 3 property), including ground floor reinforcement, shear wall modifications, and the installation of new anchor systems, demonstrating compliance with seismic safety requirements. Recent building improvements include the addition of two accessory dwelling units to the ground floor (permit filed in 2021), and numerous maintenance upgrades such as re-roofing (2018, $31,000), vinyl window replacement (2004), and various unit renovations.

The property has experienced recurring fire safety and maintenance issues, particularly evident from 2003-2023. Several fire safety violations were recorded, including alarm system and extinguisher maintenance issues in 2023 (recently abated), and a 2017 fire code violation regarding combustible storage. Prior violations from 2003 included problems with smoke enclosure doors, electrical outlets, fire proofing materials, and garbage receptacle placement, all of which were subsequently resolved. The building has undergone routine inspections, and while earlier records from the 1990s-2000s indicate issues with carpet maintenance, plumbing, and mildew, these problems appear to have been addressed. Fire department records show multiple service calls between 2008-2023, primarily related to equipment inspections and minor incidents, with no reported civilian injuries. Recent 311 calls (2023-2024) have primarily concerned exterior issues such as graffiti, sidewalk blockages, and garbage removal, suggesting ongoing challenges with property maintenance and trash management around the building's perimeter.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 50 Stanyan Blvd'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
4th percentile

Out of 519 buildings in this neighborhood, 498 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
40%
No DBI
violation
60%
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.

Building size

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building age

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

12-Month severity forecast
No violation 63.2%
Moderate concern 24.5%
Severe concern 12.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

50 Stanyan Blvd event timeline

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

2025
Fire Complaint Sep 19
Alarm Systems
Violation Issued
Fire ComplaintSep 19
Extinguishers

See all 7 events

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

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Every record we have

Full data for 50 Stanyan Blvd apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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

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