Free SF apartment background check

515-517 Ofarrell St

Tenderloin, SF 94102 0323003 45 units · 12 fl · 1926

This building has a higher-than-average number of open problems nearby. 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 Tenderloin
At or below average
avg 12.0
0
FewerMore

This building has 0 novs (7y), at or below the Tenderloin average of 12.0.

Rent & eviction protection

Is 515-517 Ofarrell 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 1926
2 or more units
45 units
Property type
Multi-Family Residential
Zoning
RC4
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
Units45
Floors12
Year built1926
Total area25,896 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0323003
Ownership

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

Owner name
Dean M Gridley 2012 Rev Tru
Mailing address
Dean M Gridley, Trustee 21 Noe St San Francisco CA 94114
Last sale
000000

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

515 Ofarrell St, San Francisco, CA 94102
517 Ofarrell St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The 12-story, 45-unit building at 515 O'Farrell Street, owned by Dean M Gridley 2012 Rev Tru, was constructed in 1926 and has experienced several significant maintenance and safety issues in recent years. The property has a concerning history of elevator problems, with multiple reports of elevator outages affecting disabled residents between 2018 and 2021, and most recently in 2024. There is an active violation regarding sleeping area requirements as of November 2023, and the building has experienced consistent fire safety compliance issues, including multiple fire code violations between 2020 and 2024, with specific concerns about fire escapes, extinguishers, alarm systems, and emergency lighting. Recent complaints from 2024 indicate concerns about a defective utility door, possible flooding hazards, and ongoing mechanical equipment issues. The building has undergone some positive updates, including a comprehensive fire alarm system upgrade in 2021 costing over $36,000, and is currently undergoing a change to add a wash and fold service to the existing laundromat. Historical issues include a bed bug infestation (2011), hazardous materials concerns (2011), and recurring problems with heat and radiator systems (2021). The property's maintenance record shows both completed repairs and several permits that have expired or been cancelled, including a 2013 emergency evacuation signage project that was cancelled. Recent permits indicate some ongoing maintenance activity, including address modifications and backflow device inspections.

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

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Risk rating

How 515-517 Ofarrell 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
55th percentile

Out of 172 buildings in this neighborhood, 77 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
11%
No DBI
violation
89%
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 13.4%
Moderate concern 53.0%
Severe concern 33.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

515-517 Ofarrell St event timeline

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

2026
Fire Complaint Apr 29
Multiple Fire Code Violations
Violation Issued
Plumbing PermitFeb 17
Install a new fire sprinkler, fire pump and fire service line. ref 202507221333

See all 16 events

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

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Every record we have

Full data for 515-517 Ofarrell St 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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