Free SF apartment background check

1640 Vallejo St

Pacific Heights, SF 94123 0551014 8 units · 3 fl · 1906

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 Pacific Heights
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Pacific Heights average of 1.4.

Rent & eviction protection

Is 1640 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 1906
2 or more units
8 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
Units8
Floors3
Year built1906
Total area7,126 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0551014
Ownership

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

Owner name
Mosser Anabelle I
Mailing address
308 Jessie St San Francisco CA 94103
Last sale
031921

Landlord portfolio

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

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Augrented Insights
Initial analysis

1640 Vallejo Street is a three-story, multi-family residential building in Pacific Heights, constructed in 1906, containing 8 units and managed by Mosser Anabelle I. The building has undergone significant renovations and safety upgrades in recent years, including the installation of a new fire alarm system in 2020 (completed at a cost of $21,235), and the addition of two new accessory dwelling units (ADUs) in the basement in 2019-2020 (totaling around $150,000) with complete electrical and plumbing work. Major structural and safety improvements have been made, including stucco repair and dry rot remediation work in 2022 ($55,000), balcony repairs ($20,000) in 2017, and comprehensive unit renovations in units 2, 6, and 8 between 2017-2015 involving kitchen and bathroom updates with new fixtures, lighting, and safety systems.

The building has a documented history of addressing safety and maintenance issues, with three fire-related incidents on record (none involving civilian injuries), and recent fire alarm system violations issued in January 2024 that were promptly corrected. Older housing violations from 2008 regarding security and fire safety were abated in 2016. The property has completed its mandatory seismic soft-story retrofit program (Tier 3) and received a Certificate of Final Completion. Recent tenant concerns have primarily focused on routine building maintenance issues, with multiple reports of garbage and debris on the property in mid-2024, and a mold and mildew complaint in August 2024 that was accepted for inspection. The building's management has generally responded promptly to violations and complaints, as evidenced by the relatively quick resolution of most recent issues, including a construction complaint during the 2020 shelter-in-place order and various inspection findings.

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

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Risk rating

How 1640 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
37th percentile

Out of 963 buildings in this neighborhood, 607 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
57%
No DBI
violation
43%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

12-Month severity forecast
No violation 42.2%
Moderate concern 45.0%
Severe concern 12.8%
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

1640 Vallejo St event timeline

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

2025
Fire Incident Oct 23 Serious
500 Service Call, other
Injuries: 0 · Fatalities: 0
Fire IncidentApr 23
113 Cooking fire, confined to container

See all 21 events

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

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Every record we have

Full data for 1640 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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