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128 Beaumont Ave

Lone Mountain, SF 94118 1136016 2 units · 2 fl · 1946

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 128 Beaumont 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 1946
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 built1946
Total area2,620 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1136016
Ownership

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

Owner name
Hsu Frank & Cheh
Mailing address
128-128a Beaumont Ave San Francisco CA 94118
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit multi-family residential building at 128 Beaumont Ave in the Lone Mountain neighborhood, owned by Frank & Cheh Hsu, was constructed in 1946 and has had several significant improvements over the years. Most recently, in August 2024, substantial renovations were initiated on the second floor including kitchen upgrades (cabinets, countertops, flooring, and appliances), bathroom remodeling, and the addition of a powder room and full bathroom, with an estimated cost of $76,000. Prior notable improvements include the replacement of an exterior staircase due to dry rot in 2016 (with new foundation work), an electrical update for rear stair illumination with motion sensor fixtures in 2016, and significant plumbing work in 2021 involving the installation of a new side sewer lateral from the foundation to the city main. The building's maintenance history shows attention to basic infrastructure, including reroofing projects completed in 1992 and 2009, and a gas line extension in 2012.

The property has had a series of abandoned vehicle reports in the vicinity between 2014 and 2023, though these appear to be unrelated to the building's condition or management. There were also two service requests documented through 311 calls - one in 2018 that was resolved with no issues found during inspection, and another in 2020 that was transferred to the Department of Public Health. The building's maintenance record suggests regular upkeep and modernization efforts by the owners, with no documented safety violations or major structural issues in recent years. The most recent permits indicate ongoing investment in the property's infrastructure and amenities, particularly focused on improving the second floor facilities.

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

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Risk rating

How 128 Beaumont 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
77th percentile

Out of 519 buildings in this neighborhood, 119 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.

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.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 82.0%
Moderate concern 12.8%
Severe concern 5.2%
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

128 Beaumont Ave event timeline

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

2025
Plumbing Permit Nov 28
Work category: 2pb; warranty replacement of house trap in backyard, including water retention and sewer line connections.
Complete
Plumbing PermitFeb 26
All work 2nd floor: new water lines for a bathroom as well as new lines for laundry. the (e) bathroom a new shower valve will be installed as well as a new shower drainage. (2) shower pans.

See all 8 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 128 Beaumont 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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