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642 Peralta Ave

Bernal Heights, SF 94110 5633024 4 units · 2 fl · 1960

This building has more problems than most buildings in this neighborhood. 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 642 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 1960
2 or more units
4 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
Units4
Floors2
Year built1960
Total area3,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5633024
Ownership

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

Owner name
Wong Edgar
Mailing address
1542 Sacramento St San Francisco CA 94109
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

642 Peralta Avenue is a two-story, four-unit multi-family residential building located in Bernal Heights, constructed in 1960 and currently owned by Edgar Wong. The building has undergone several maintenance and safety compliance efforts over its history, with the most significant recent work occurring in 2015 when exterior repairs were completed to address wood dry-rot beneath windows, including the replacement of eight windows at the front of the building, at a cost of $25,000. Earlier improvements include a 2003 electrical upgrade for underground conversion with 100-amp service, and in March 2001, the building underwent a routine housing inspection that revealed multiple safety code violations which were subsequently addressed and abated by June 27, 2001. These violations included the need for proper gas utility shutoff tools, fire safety improvements such as sprinkler systems and fire extinguisher maintenance, and security enhancements like self-closing exterior doors.

The property has experienced various maintenance and service calls in recent years, with the most notable being a sewage backup incident in October 2024, though this was ultimately cancelled by the caller. Other recent 311 calls predominantly relate to external issues such as parking violations, garbage concerns, and noise complaints, with a notable pattern of reports regarding abandoned vehicles and debris in the vicinity throughout 2024. A gas leak incident was recorded at some point in the building's history, though no civilian injuries were reported, and there was one combustible materials complaint in 2010 which was determined to have no merit. The building's history suggests regular maintenance and prompt attention to violations when they occur, with no active violations or complaints currently on record.

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

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Risk rating

How 642 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
24th percentile

Out of 1276 buildings in this neighborhood, 970 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
59%
No DBI
violation
41%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

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.

12-Month severity forecast
No violation 43.1%
Moderate concern 35.6%
Severe concern 21.2%
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

642 Peralta Ave event timeline

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

2025
311 Request Oct 24
Public works
bsm complaint

See all 2 events

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

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Every record we have

Full data for 642 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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