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1550 Vallejo St

Russian Hill, SF 94109 0550015 4 units · 3 fl · 1972

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 Russian Hill
At or below average
avg 1.9
0
FewerMore

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

Rent & eviction protection

Is 1550 Vallejo 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 1972
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH3
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
Floors3
Year built1972
Total area4,895 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0550015
Ownership

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

Owner name
Quon Family Trust
Mailing address
Richard J & Lorene L Quon 1550 Vallejo St Apt 4 San Francisco CA 94109
Last sale
012899

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located in San Francisco's Russian Hill neighborhood, this 4-unit, 3-story multi-family residential building owned by the Quon Family Trust was constructed in 1972. The building has undergone significant recent improvements, with major work completed between 2019 and 2024. Most notably, in 2024, the property received a new $28,000 roof and underwent window replacements on the back side of the building. Unit renovations have been a priority, with completed upgrades including a $75,000 remodel of Unit #3's kitchen and bathroom in 2023, and a $30,000 renovation of Unit #1's kitchen and bathroom in 2019. The building's fire safety systems have received particular attention, with a comprehensive upgrade to the fire alarm system completed in 2022 that included pull stations, smoke detectors, and off-site monitoring, though subsequent revisions in 2023 modified the installation plan for pull stations on the 2nd and 3rd floors.

The property has maintained active upkeep with regular improvements, including electrical upgrades for an electric gate and sub-panel replacement in 2021, and ongoing maintenance of common areas. Historical records show reroofing work was done in 1990, and the building has had minimal complaints, with only one routine housing inspection in 2001. Recent 311 calls have primarily concerned street cleaning and parking issues near the property, rather than building-specific problems. The property's maintenance record shows consistent investment in both unit improvements and building systems, with all recent permits marked as complete, indicating proper adherence to regulatory requirements.

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

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Risk rating

How 1550 Vallejo 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
81th percentile

Out of 1133 buildings in this neighborhood, 215 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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 (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 70.7%
Moderate concern 10.2%
Severe concern 19.0%
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

1550 Vallejo St event timeline

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

2025
Building Permit Aug 13
Repair existing stucco on backside of building under deck 1st floor opened up for inspection to comply with city ordinance. like for like, same materials. not street visible.
$5,000 · Complete

See all 13 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1550 Vallejo St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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