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1357-1359 Mason St

Nob Hill, SF 94133 0181002A 2 units · 2 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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1357-1359 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 1923
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RC3
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 built1923
Total area2,722 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0181002A
Ownership

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

Owner name
Yee Gene W Y & Flora H
Mailing address
1357 Mason St San Francisco CA 94133
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.

1359 Mason St, San Francisco, CA 94133
1357 Mason St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 1357-1359 Mason Street in Nob Hill, owned by Gene W Y and Flora H Yee, is a two-story flats and duplex structure built in 1923. The property has experienced recurring parking-related issues between 2021 and 2022, with multiple incidents of driveway blocking and sidewalk parking, particularly involving a gold Toyota 4Runner, though enforcement responses resulted in either citations or officers being unable to locate the offending vehicles. There were also service requests related to street cleaning, including missed trash collection in November 2024 and other loose garbage in August 2022. Two fire incidents have been recorded at the property, including a cooking fire that was confined to a container with no civilian injuries and an unintentional alarm system activation, both showing no injuries or significant damage. The building's maintenance and incident history suggests regular enforcement response to parking violations and prompt resolution of sanitation issues, with no major safety concerns reported through the fire incident records.

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

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Risk rating

How 1357-1359 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
94th percentile

Out of 1125 buildings in this neighborhood, 68 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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 age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Neighborhood location

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 82.6%
Moderate concern 10.4%
Severe concern 7.0%
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

1357-1359 Mason St event timeline

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

2023
311 Request Oct 15
Bulky items
Furniture

See all 1 events

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

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Every record we have

Full data for 1357-1359 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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