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109 Douglass St

Corona Heights, SF 94114 2650034 4 units · 2 fl · 1895

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 Corona Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Corona Heights average of 1.2.

Rent & eviction protection

Is 109 Douglass 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 1895
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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
Floors2
Year built1895
Total area4,550 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2650034
Ownership

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

Owner name
Wilbur T Wong Revocable Tr
Mailing address
Wong Wilbur T, Ttee 78 Sharon St San Francisco CA 94114
Last sale
120120

Landlord portfolio

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

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Augrented Insights
Initial analysis

109 Douglass Street is a two-story, four-unit multi-family residential building constructed in 1895 in the Corona Heights neighborhood, currently owned by the Wilbur T Wong Revocable Trust. The property has undergone numerous maintenance and safety upgrades over the years, with the most recent significant work including a sewer lateral replacement in April 2023 and an egress stairs replacement in June 2021, both of which were completed properly. There have been recurring fire safety system issues, with the most recent fire alarm and extinguisher system violations occurring in June 2024 and June 2023, though these were promptly corrected. A concerning history of building maintenance issues is documented from 2001-2005, including problems with fire escape ladders, fire extinguishers, the central alarm system, and a security door between units, all of which were resolved by January 2002. The building's plumbing infrastructure has been progressively updated, with sewer line work recorded in 2011 and various other maintenance projects focused on safety and code compliance, including multiple stairway and fence replacements.

Recent interactions with city services primarily involve routine maintenance and neighborhood issues rather than building-specific problems, with the latest municipal complaints in 2023-2024 relating to parking, tree damage, and various street maintenance matters. A notable planning history includes a disapproved variance request to legalize a fifth dwelling unit without providing off-street parking, though this was officially denied. The building's maintenance record shows ongoing attention to safety and code compliance, particularly regarding egress requirements and fire safety systems, with most recent violations being addressed promptly. The property has maintained active engagement with city inspection services through routine inspections and necessary repairs, demonstrating ongoing maintenance and safety compliance efforts.

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

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Risk rating

How 109 Douglass 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
39th percentile

Out of 348 buildings in this neighborhood, 212 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.

Neighborhood location

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

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month severity forecast
No violation 80.3%
Moderate concern 15.3%
Severe concern 4.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

109 Douglass St event timeline

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

2023
Plumbing Permit Apr 13
Cut and remove concrete and repplace clay to cast iron sewer lateral inside property line.
Complete

See all 2 events

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

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Every record we have

Full data for 109 Douglass 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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