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1651-1655 Mason St

Russian Hill, SF 94133 0128002 4 units · 3 fl · 1907

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Russian Hill — not a forecast
Above average
avg 1.9
3
FewerMore

This building has 3 novs (7y), above the Russian Hill average of 1.9.

Rent & eviction protection

Is 1651-1655 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 1907
2 or more units
4 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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1907
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units4
Floors3
Year built1907
Total area4,782 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0128002
Ownership

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

Owner name
Mailing address
Chan Beverly Trustee 1651 Mason St San Francisco CA 94133
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1655 Mason St, San Francisco, CA 94133
1651 Mason St, San Francisco, CA 94133
1653 Mason St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 1651-1655 Mason Street is a three-story, four-unit multi-family residential building located in San Francisco's Russian Hill neighborhood. Built in 1907, this building has undergone several significant improvements over the years, with the most recent major upgrades including the installation of a solar power system (2018) and an energy storage system (2020). In 2015-2016, substantial interior renovations were completed at 1653 Mason Street, including reconfigured layouts and modernized systems, followed by additional electrical and plumbing work. The building has received multiple maintenance and improvement updates, including foundation strengthening work in 2012 with the installation of concrete footings and a perimeter wall cap.

The property has experienced various challenges over its history, particularly related to water management and compliance issues. Notably, there were violations and complaints regarding water runoff and drainage systems in 2012, as well as concerns about hillside erosion in 2010. The building also faced some serious violations in 2008 regarding unauthorized unit modifications, unapproved wiring and plumbing, lack of smoke detectors, improper exiting, and building materials, though these issues were subsequently addressed. More recent minor complaints in 2018 and 2019 involved maintenance issues such as a broken freezer and toilet problems, and there were concerns about unauthorized solar panel installation in 2018, though these issues were resolved. The property has maintained active compliance with building codes since the significant violations of 2008 were addressed, and recent improvements focus on energy efficiency and modernization.

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

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Risk rating

How 1651-1655 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
39thpercentile

Out of 1133 buildings in this neighborhood, 691 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
68%
No DBI
violation
32%
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.

DBI tenant complaints (past 7 years)

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

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month risk forecast
Moderate failure risk 32%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1651-1655 Mason St apartment reviews

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On the map

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The story over time

1651-1655 Mason St event timeline

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

2020
Electrical Permit May 13
Install 13.5 energy storage system
Complete

See all 5 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1651-1655 Mason St apartments

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

Side by side

How 1651-1655 Mason St compares to the neighborhood

This building against comparable properties in Russian Hill. Toggle filters to narrow the peer group.

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

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