Free SF apartment background check

320 Masonic Ave

North Panhandle, SF 94118 1149016 2 units · 2 fl · 1905

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in North Panhandle
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 320 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 1905
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1905
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1149016
Ownership

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

Owner name
Frederick & Patricia Postel
Mailing address
Frederoc F & Patricia A Pos 23 Sinaloa Ct Novato CA 94947
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.

2299 Turk Blvd, San Francisco, CA 94118
320 Masonic Ave, San Francisco, CA 94118
2297 Turk Blvd, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit residential building at 320 Masonic Avenue in the Park North neighborhood, owned by Frederick & Patricia Postel, was constructed in 1905 and is classified as a Flats & Duplex structure. The property has undergone several significant maintenance and improvement projects over the years, with the most substantial being a $27,480 siding replacement project in 2016 and a sewer line repair in 2015. Earlier renovations in 1993 included kitchen cabinet replacements and wall repairs, while the building's plumbing system received attention through a water heater replacement in 2009.

Of particular concern are two plumbing-related complaints filed in December 2019, reporting sewage and toilet paper discharge from the sidewalk vent near the curb, though one of these complaints was subsequently abated. The property has experienced several smoke detector activations through the years, though all were determined to be either malfunction-related or unintentional with no associated fires or injuries. The building's maintenance record shows attention to basic infrastructure, including a foundation repair and window improvements attempted in 1995. More recently, there have been multiple reports of overflowing city garbage cans near the property in late 2024, though these appear to be municipal service issues rather than direct building maintenance concerns. The property has also experienced some graffiti and lighting issues in the neighborhood, as evidenced by 311 calls, though these are external to the building itself.

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

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Risk rating

How 320 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
18th percentile

Out of 797 buildings in this neighborhood, 654 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
52%
No DBI
violation
48%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaint rate, owner's portfolio

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

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 49.5%
Moderate concern 37.9%
Severe concern 12.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

320 Masonic Ave apartment reviews

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The story over time

320 Masonic Ave event timeline

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

2025
311 Request Feb 01
Offensive
sidewalk in front of property

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

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