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109-111 Masonic Ave

Lone Mountain, SF 94118 1108001B 2 units · 2 fl · 1940

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 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 109-111 Masonic 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 1940
2 or more units
2 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
Units2
Floors2
Year built1940
Total area2,763 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1108001B
Ownership

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

Owner name
Luigi & Maria Demartini Fml
Mailing address
Jean De Maroni 232 Aragon Blvd San Mateo CA 94402
Last sale
120294

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.

111 Masonic Ave, San Francisco, CA 94118
109 Masonic Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 109-111 Masonic Ave is a two-unit, two-story multi-family residential building located in the Lone Mountain neighborhood, owned by Luigi & Maria Demartini Fml and built in 1940. The building has undergone several significant renovations, including multiple window installations (2006 & 2010), reroofing projects (1992 & 2009), bathroom renovations (2013), and termite remediation work (1995). A notable incident occurred in 1988 when the building sustained fire damage requiring insurance repairs. In mid-2013, the property faced multiple housing code violations including damaged walls and ceilings, mold and mildew issues, combustible storage concerns, lead paint hazards, and yard maintenance violations, though all were resolved by October 2013.

Recent maintenance of the property has included various plumbing work in 2013, and more recent building improvements such as bathroom renovations. Between 2023 and 2024, there have been multiple 311 calls primarily related to street cleaning and graffiti removal in the vicinity, with the most recent building-related work recorded being garbage can overflow issues in October 2023. The property's maintenance history shows regular upkeep of major systems, though the 2013 violations indicated a period of significant interior maintenance needs that were promptly addressed. The building's permit history demonstrates ongoing improvements and maintenance, including energy-efficient window installations and bathroom updates, suggesting active property management and maintenance practices.

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

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Risk rating

How 109-111 Masonic 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
51th percentile

Out of 519 buildings in this neighborhood, 254 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

DBI complaint rate, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 83.4%
Moderate concern 12.3%
Severe concern 4.3%
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

109-111 Masonic Ave event timeline

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

2026
311 Request Mar 15
Garbage and debris
city garbage can overflowing

See all 3 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 109-111 Masonic Ave apartments

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

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