Free SF apartment background check

88-94 Valparaiso St

Russian Hill, SF 94133 0091040 4 units · 2 fl · 1907

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 88-94 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 1907
2 or more units
4 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
Units4
Floors2
Year built1907
Total area2,720 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0091040
Ownership

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

Owner name
Huang Yi Ming
Mailing address
92 Valparaiso St San Francisco CA 94133
Last sale
092518

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.

94 Valparaiso St, San Francisco, CA 94133
90 Valparaiso St, San Francisco, CA 94133
92 Valparaiso St, San Francisco, CA 94133
88 Valparaiso St, San Francisco, CA 94133
88 A Valparaiso St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 88-94 Valparaiso Street is a two-story, four-unit multi-family residential building located in Russian Hill, built in 1907 and currently owned by Huang Yi Ming. The building has undergone several significant modifications and improvements over its history, with the most recent major work being the legalization of a first-floor unit in 2016 that included kitchen, bathroom, two bedrooms, and living room modifications, though concerns have been raised in 2024 regarding missing sprinkler system documentation for this work. Between 2016-2017, substantial improvements were made to the building's infrastructure, including bathroom remodeling, plumbing replacements, and electrical upgrades for ground floor units including installation of smoke detectors. The building has a history of compliance issues, notably in 2002-2003 when multiple violations were recorded related to fire safety equipment, smoke detectors, and water heater flue repairs, though these were subsequently abated. There was also a complaint in 2010 regarding heating system issues, interior paint condition, and flooring defects that was resolved by 2011.

Older records from the 1990s and 1980s show various permit applications related to code compliance and inspection work, suggesting ongoing maintenance and regulatory adherence efforts by previous owners. The building's current condition shows active maintenance, with recent 311 calls primarily related to street cleaning and parking issues around the property, though these are external to the building itself. A single fire-related incident involving steam or vapor was recorded, but no civilian injuries were reported. Regular inspections and permits indicate continued investment in building maintenance and code compliance, though the most recent complaint regarding missing sprinkler system documentation suggests an area requiring attention.

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

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Risk rating

How 88-94 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
74th percentile

Out of 1133 buildings in this neighborhood, 295 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 49.0%
Moderate concern 13.9%
Severe concern 37.1%
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

88-94 Valparaiso St event timeline

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

2025
311 Request Dec 31
Blocking driveway cite only
Parking Enforcement
311 RequestDec 19
Blocking driveway cite only

See all 6 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 88-94 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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