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771-775 Ofarrell St

Tenderloin, SF 94109 0321031 6 units · 3 fl · 1923

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 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 771-775 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 1923
2 or more units
6 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
Units6
Floors3
Year built1923
Total area7,348 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0321031
Ownership

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

Owner name
Lee Kai Man & Lo May Wong T
Mailing address
877 Darien Way San Francisco CA 94127
Last sale
091919

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.

771 Ofarrell St, San Francisco, CA 94109
775 Ofarrell St, San Francisco, CA 94109
773 Ofarrell St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The three-story multi-family residential building at 771-775 O'Farrell Street in the Tenderloin, built in 1923, consists of 6 units and has undergone several significant maintenance and safety upgrades over the past decade. Most recently, in October 2023, the building completed a sanitary lateral replacement, following earlier improvements including a subpanel replacement in 2022 and a voluntary fire system upgrade in 2016 that included control unit and smoke detector replacements. The building had notable maintenance issues between 2002-2012, including multiple violations related to interior surfaces, sanitation, and fire safety, most of which were resolved by June 2012. These historical violations included problems with deteriorated paint (potential lead hazard), mold/mildew, window glazing, fire escape maintenance, and various interior surface issues. Three significant complaints from the 2004-2008 period addressed plumbing and fire safety concerns such as leaks, rusty fixtures, and missing smoke detectors, all of which were promptly resolved.

The property has seen ongoing attention to building systems and tenant comfort, with various improvements including a kitchen and bathroom remodel in Apartment 42 (2008), and structural maintenance work such as reroofing (1991) and awning installation (2003). Recent years have shown active management of both building systems and surrounding public spaces, with 311 calls mostly related to street cleaning, graffiti removal, and public safety concerns being promptly addressed. A series of complaints about garbage and debris on nearby streets was documented in 2024, though these were mostly exterior to the building itself. The most recent building-specific complaints have been resolved, and there are no active housing violations on record as of October 2023.

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

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Risk rating

How 771-775 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
94th percentile

Out of 172 buildings in this neighborhood, 10 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 30.8%
Moderate concern 39.3%
Severe concern 30.0%
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

771-775 Ofarrell St event timeline

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

2026
DBI Complaint Feb 17
Residential building issue - clutter/hoarder - unit interior, storage
Housing Inspection Services
311 RequestFeb 16
Clutter hoarder unit interior storage

See all 9 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 771-775 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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