Free SF apartment background check

100 5Th Ave

Lake Street, SF 94118 1364036 9 units · 3 fl · 1922

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 Lake Street
Above average
avg 0.6
11
FewerMore

This building has 11 novs (7y), above the Lake Street average of 0.6.

Rent & eviction protection

Is 100 5Th Ave 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 1922
2 or more units
9 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units9
Floors3
Year built1922
Total area8,006 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1364036
Ownership

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

Owner name
Linda A Bozzo Tr
Mailing address
Bozzo Linda A Trustee 1163 Bowdoin St San Francisco CA 94134
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story, nine-unit multi-family residential building at 100 5th Avenue, constructed in 1922, has a documented history of maintenance and compliance issues that warrant attention. Most recently, the property has faced recurring boiler permit violations, with active complaints in 2023 and prior violations in 2022, 2021, and 2016 related to the boiler with serial number 473785-200403. The building underwent a soft-story retrofit in 2018 (cost: $69,000), achieving Work Complete status with a Certificate of Final Completion issued. Several infrastructure improvements include the installation of a new boiler make-up line (2018), backflow device replacement (2016), and hot water tank replacement (2015). The property has experienced multiple fire safety compliance issues, particularly regarding fire extinguishers, with violations noted in 2016, 2021, 2022, and most recently in October 2023, though these were generally corrected promptly.

Additional historical context includes a lead paint hazard complaint from 2013 that was addressed, and various routine inspections revealing issues such as peeling paint and hallway maintenance concerns. The building's fire alarm system has malfunctioned several times, though no civilian injuries were reported in these incidents. Recent 311 calls (2024) have noted issues with sidewalk condition and waste, while planning records indicate installation of Verizon wireless equipment on an existing pole near the property. The most pressing current concern appears to be the unresolved boiler permit violation as of December 2023, which represents the building's latest compliance challenge.

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

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Risk rating

How 100 5Th Ave'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 660 buildings in this neighborhood, 653 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
24%
No DBI
violation
76%
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 19.6%
Moderate concern 51.6%
Severe concern 28.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

100 5Th Ave apartment reviews

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The story over time

100 5Th Ave event timeline

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

2025
Building Violation (NOV) Dec 05 Serious
Building violation
Peeling paint found at back wall of property. remove and properly dispose severely peeling and flaking paint. following proper removal and…
Building Violation (NOV)Dec 05
Building violation

See all 20 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 100 5Th Ave 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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