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450 Peralta Ave

Bernal Heights, SF 94110 5541002 2 units · 2 fl · 1967

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 450 Peralta 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 1967
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 built1967
Total area2,138 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot5541002
Ownership

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

Owner name
K P Mauzey 2007 Trust
Mailing address
Karl P Mauzey, Ttee 450 Peralta Ave San Francisco CA 94110
Last sale
102814

Landlord portfolio

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

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Augrented Insights
Initial analysis

This two-unit residential building, located at 450 Peralta Ave in Bernal Heights, was constructed in 1967 and is currently owned by the K P Mauzey 2007 Trust. The property has undergone several significant maintenance and improvement projects over the years, including a water supply line replacement from the meter to the house in 2016, removal and replacement of roofing in 2004 and 1990, and deck repairs at the upper level in 1997. One notable incident occurred in 2005 when unauthorized construction of a steel stair with wood platform and staircase at the rear of the building led to multiple building violations and abatement proceedings, which were finally resolved in 2010 when a $15,000 permit was obtained to legalize the previously unauthorized work.

The building has experienced some maintenance issues that have affected resident comfort and safety, including a 2017 complaint about a broken downspout causing water leakage and debris issues. More recent records from late 2024 show multiple infrastructure and maintenance matters in the vicinity, including tree maintenance concerns, driveway blocking incidents, and various public works requests. There were also several fire safety violations recorded in late 2005 related to a fire hazard, though these were subsequently closed. While most historical building issues have been addressed through proper permits and corrections, the property has experienced various maintenance challenges typical of a residential building of its age and configuration.

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

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Risk rating

How 450 Peralta 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
72th percentile

Out of 1276 buildings in this neighborhood, 357 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Neighborhood location

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

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 72.2%
Moderate concern 23.3%
Severe concern 4.4%
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

450 Peralta Ave event timeline

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

2026
311 Request Jun 01
Abandoned vehicle
Parking Enforcement

See all 2 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 450 Peralta 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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