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46-48 Valparaiso St

Russian Hill, SF 94133 0091035 2 units · 2 fl · 1909

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 46-48 Valparaiso 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 1909
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1909
Total area1,982 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0091035
Ownership

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

Owner name
Bava Toni Joanne
Mailing address
1399 Rhode Island St San Francisco CA 94107
Last sale
102215

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.

46 Valparaiso St, San Francisco, CA 94133
48 Valparaiso St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 46-48 Valparaiso Street in San Francisco's Russian Hill neighborhood, owned by Toni Joanne Bava, is a two-story flats and duplex structure built in 1909. The property has undergone several significant improvements over the past decades, with the most recent major work being a reroofing project completed in 2019 at a cost of $18,000. Historical improvements include foundational seismic bolting completed in 2009, installation of a new furnace in 2010, and a comprehensive electrical upgrade in 2005 that included new circuit breaker panels and wiring. The building's maintenance record shows regular attention to basic infrastructure needs, particularly regarding the roof, which has been replaced multiple times throughout its history.

In recent years, there have been some neighborhood maintenance and compliance issues, including a December 2022 complaint about junk storage in the garage setback, which was categorized as a blighted building issue by Housing Inspection Services. The property has also experienced some external maintenance concerns, with a missing side sewer vent cover reported and resolved in September 2024. Notably, there have been multiple parking enforcement calls between 2019 and 2020 regarding sidewalk parking and illegal parking in the vicinity of the property, though these parking issues appear to be primarily related to street use rather than building-specific concerns. The property has generated several 311 calls for various neighborhood maintenance issues, including for street cleaning and waste receptacle management, though many of these appear to be typical urban maintenance matters rather than building-specific problems.

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

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Risk rating

How 46-48 Valparaiso 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
77th percentile

Out of 1133 buildings in this neighborhood, 261 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

DBI tenant complaints (past 7 years)

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

Neighborhood location

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

DBI complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 75.1%
Moderate concern 16.4%
Severe concern 8.4%
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

46-48 Valparaiso St event timeline

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

2026
311 Request Mar 30
Other
other PGE - Streetlights

See all 5 events

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

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Every record we have

Full data for 46-48 Valparaiso St apartments

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

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