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451 Monterey Blvd

Sunnyside, SF 94112 3117040 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 Sunnyside
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Sunnyside average of 1.9.

Rent & eviction protection

Is 451 Monterey Blvd 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 area3,360 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3117040
Ownership

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

Owner name
Jorge & Irma Perez 2010 Sur
Mailing address
Perez Jorge Luis 195 Lunado Way San Francisco CA 94127
Last sale
030521

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 451 Monterey Blvd in Sunnyside, owned by Jorge & Irma Perez since 2010, has undergone several significant maintenance and improvement projects since its construction in 1946. The property has received substantial plumbing upgrades, including a complete sewer lateral replacement in 2011, gas houseline extension in 2013, and most recently, a housetrap replacement from cast iron sewer to curb in 2021, demonstrating ongoing infrastructure maintenance. The building has also seen some modernization efforts, including a kitchen remodel in 2005 and window replacement in the same year, both completed successfully.

Recent issues have raised some concerns about resident experience, particularly a sewage backup incident in December 2021 and a bed bug infestation reported in June 2019. The property has experienced recurring parking enforcement issues, with multiple complaints about driveway blocking between 2018 and 2024, though these are external matters not directly related to building conditions. The building's maintenance record shows regular upkeep of major systems, including electrical and plumbing, with all permitted work properly completed and inspected. The property's permit history indicates responsible ownership, with appropriate permits obtained for all significant work, including a street space permit in 2011 and various plumbing repairs over the years.

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

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Risk rating

How 451 Monterey Blvd'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
61th percentile

Out of 129 buildings in this neighborhood, 50 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
75%
No DBI
violation
25%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Neighborhood location

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

12-Month severity forecast
No violation 47.8%
Moderate concern 18.0%
Severe concern 34.2%
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

451 Monterey Blvd event timeline

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

2025
Building Permit Sep 05
Re-roofing, no torch down. no structural change or new roof penetrations
$22,000 · Complete

See all 2 events

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

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Every record we have

Full data for 451 Monterey Blvd 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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