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457-459 Monterey Blvd

Sunnyside, SF 94112 3117039 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 457-459 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 area2,274 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3117039
Ownership

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

Owner name
Chong William & Xiuqing Li
Mailing address
459 Monterey Blvd San Francisco CA 94127
Last sale
031109

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.

457 Monterey Blvd, San Francisco, CA 94112
459 Monterey Blvd, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 457-459 Monterey Blvd is a two-unit, two-story multi-family residential building located in San Francisco's Sunnyside neighborhood, owned by William Chong and Xiuqing Li. Built in 1946, this flats/duplex structure has undergone several significant modifications and faced various maintenance issues over the years. Most recently, in late 2023, there were multiple sewer issues reported between November and December, with at least eight incidents of sewage backup through a 4-inch vent. These recent plumbing problems suggest ongoing infrastructure challenges. In 2008, the building underwent substantial modifications, including the legalization of a half bath in garage #1, installation of washer/dryer units in both garages, and construction of a storage room in garage #2, with associated electrical work including a 200-amp service upgrade. Prior to these improvements, the building faced serious habitability issues in 2002, when multiple violations were recorded regarding inadequate heating, mold problems, water damage, bathroom maintenance, and security concerns, including the absence of proper smoke detectors. While these violations were abated by December 2002, they indicate a period of significant maintenance challenges.

The property's history also includes a cancelled permit from 2006 for a vertical addition at the rear of the building that was initially estimated at $371,000. The 2008 construction work appears to have been completed properly, as evidenced by the multiple permits and inspections recorded in conjunction with those improvements. A building complaint from February 2008 regarding unauthorized construction of two ground floor rooms at each garage was noted, though this appears to have been addressed through subsequent permitting and inspection processes. The most recent building history shows particular attention to plumbing issues, with multiple sewer-related service requests in late 2023, suggesting this remains an area requiring ongoing maintenance attention.

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

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Risk rating

How 457-459 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
72th percentile

Out of 129 buildings in this neighborhood, 36 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 (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 71.8%
Moderate concern 15.9%
Severe concern 12.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

457-459 Monterey Blvd event timeline

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

2026
311 Request Jan 30
Parking on sidewalk
Parking Enforcement

See all 5 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 457-459 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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