Free SF apartment background check

1455-1461 Powell St

North Beach, SF 94133 0148030 5 units · 4 fl · 1908

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 1455-1461 Powell 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
5 units
Property type
Multi-Family Residential
Zoning
NBEACH
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
Units5
Floors4
Year built1908
Total area11,039 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0148030
Ownership

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

Owner name
Mah Mark K K & Siu-Mui
Mailing address
732 Union St San Francisco CA 94133
Last sale
022097

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.

1457 Powell St, San Francisco, CA 94133
1455 Powell St, San Francisco, CA 94133
1459 Powell St, San Francisco, CA 94133
1461 Powell St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 1455-1461 Powell Street is a 4-story, 5-unit mixed-use building constructed in 1908, containing residential units and commercial space. The building has a documented history of maintenance and safety issues, with recent concerns centered around plumbing problems. Most notably, in September 2020, there were significant sewer/wastewater overflow issues affecting commercial pedicure stations, allegedly caused by laundry activities from an upstairs unit. The building has experienced persistent water-related problems over the years, with multiple complaints between 2016-2020 documenting roof leaks, interior water damage, and plumbing issues. These included a troubling complaint in 2014 detailing extensive mold/mildew, wood rot, and pest infestations affecting multiple residential units.

The building's maintenance history shows both completed repairs and ongoing concerns, with notable improvements including the installation of an automatic fire sprinkler system in 1990 and repairs to wooden stairs in 2013. However, there have been multiple instances of building code violations related to safety and habitability, including problems with stair maintenance, building sanitation, and fire safety equipment. Recent 311 calls (2022-2024) show continued issues in the vicinity, primarily involving graffiti and waste on nearby public property. Planning records indicate past concerns over unlawful short-term rentals and unauthorized commercial events in residential units, though these appear to have been addressed according to the records.

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

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Risk rating

How 1455-1461 Powell 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
20th percentile

Out of 362 buildings in this neighborhood, 290 are predicted to be safer.

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

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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.

12-Month severity forecast
No violation 34.3%
Moderate concern 50.5%
Severe concern 15.2%
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

1455-1461 Powell St event timeline

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

2026
311 Request Mar 07
Pavement defect
Street Defect

See all 9 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1455-1461 Powell 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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