Free SF apartment background check

80-90 Alta St

Telegraph Hill, SF 94133 0106036 12 units · 3 fl · 1961

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Telegraph Hill
Above average
avg 1.2
9
FewerMore

This building has 9 novs (7y), above the Telegraph Hill average of 1.2.

Rent & eviction protection

Is 80-90 Alta 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 1961
2 or more units
12 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
Units12
Floors3
Year built1961
Total area7,496 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0106036
Ownership

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

Owner name
Boschetti Giampaolo
Mailing address
955 Prague St San Francisco CA 94112
Last sale
062698

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.

86 Alta St, San Francisco, CA 94133
88 Alta St, San Francisco, CA 94133
82 Alta St, San Francisco, CA 94133
80 Alta St, San Francisco, CA 94133
90 Alta St, San Francisco, CA 94133
84 Alta St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The 12-unit multi-family residential building at 80-90 Alta Street, located in Telegraph Hill and owned by Giampaolo Boschetti, was constructed in 1961 and spans three stories. The property has experienced several maintenance and safety concerns over the years, with the most recent being a mold issue reported in January 2024 and ongoing concerns about fire extinguisher maintenance. Notable violations include a 2017 Soft Story Tier 3 issue due to an unfiled permit, which was abated in November 2017, and multiple fire safety violations in 2005 requiring repairs to fire escape ladders, wood stairs, and smoke detector inspections. The building underwent some structural work in 2005, including the replacement of staircase support beams and electrical system upgrades, though one electrical permit from 2005 is noted as expired. Recent maintenance challenges have included multiple sewage discharge incidents in late 2024, though these were subsequently resolved. The property has shown a pattern of fire safety inspections and violations, particularly regarding extinguishers, with the most recent violation issued in March 2024. Historical records show various routine inspections and repairs, including bathroom renovations in 2004 and a retaining wall construction in 1999. The building's compliance history indicates attention to various safety requirements, though with recurring maintenance issues that have required multiple interventions over time.

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

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Risk rating

How 80-90 Alta 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
1th percentile

Out of 684 buildings in this neighborhood, 677 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
12%
No DBI
violation
88%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Building size

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

12-Month severity forecast
No violation 8.0%
Moderate concern 78.2%
Severe concern 13.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

80-90 Alta St apartment reviews

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The story over time

80-90 Alta St event timeline

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

2026
311 Request Mar 05
Abandoned vehicle
Parking Enforcement

See all 15 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 80-90 Alta 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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