Free SF apartment background check

1500-1508 Mason St

North Beach, SF 94133 0148012 6 units · 3 fl · 1908

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 North Beach
At or below average
avg 2.1
0
FewerMore

This building has 0 novs (7y), at or below the North Beach average of 2.1.

Rent & eviction protection

Is 1500-1508 Mason 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 1908
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RM2
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 built1908
Total area6,176 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0148012
Ownership

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

Owner name
Mark Bernard
Mailing address
Evan Mark 2020 Lvg Tr 1788 Castle Hill Rd Walnut Creek CA 94595
Last sale
090897

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.

1500 Mason St, San Francisco, CA 94133
1506 Mason St, San Francisco, CA 94133
1508 Mason St, San Francisco, CA 94133
1504 Mason St, San Francisco, CA 94133
1502 Mason St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-story multi-family residential building at 1500-1508 Mason Street in North Beach, owned by Mark Bernard, was constructed in 1908 and contains 6 units with ground floor retail space. The property has recently undergone several significant improvements, including a bathroom remodel and electrical system upgrade in late 2024, with the latter consisting of replacing Federal Pacific equipment, installing a 150-amp disconnect, new sub-panel, and breakers for all units. During the summer of 2024, the building's plumbing infrastructure was also updated with the installation of a new 40-gallon gas water heater in the kitchen.

The building's maintenance history shows attention to both routine upkeep and significant improvements, though there have been some concerning issues requiring remediation. In 2015, the property was cited as a "nuisance" under the San Francisco Housing Code, with violations including peeling paint on the penthouse stairwell, missing carbon monoxide detectors, and several other safety-related concerns. These violations were abated by September 2015. More recent issues include some plumbing problems in September 2024 with a sewer vent discharge incident and a garbage-related complaint in June 2024, both of which have been resolved. The building has also seen regular routine inspections over the years (1999, 2004, 2007, and 2015), indicating ongoing oversight of maintenance and compliance with housing codes. Recent complaints through the 311 system in 2024 have primarily focused on external issues such as illegal parking and sidewalk cleanliness, rather than internal building conditions.

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

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Risk rating

How 1500-1508 Mason 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 362 buildings in this neighborhood, 221 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
66%
No DBI
violation
34%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 31.7%
Moderate concern 19.0%
Severe concern 49.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1500-1508 Mason St event timeline

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

2025
311 Request Jul 03
Abandoned vehicle
Parking Enforcement
311 RequestJul 03
Abandoned vehicle

See all 10 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1500-1508 Mason 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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