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2479-2481 San Bruno Ave

Portola, SF 94134 5437038 3 units · 2 fl · 1907

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Portola
Above average
avg 1.8
23
FewerMore

This building has 23 novs (7y), above the Portola average of 1.8.

Rent & eviction protection

Is 2479-2481 San Bruno 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 1907
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
NC2
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
Units3
Floors2
Year built1907
Total area3,565 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5437038
Ownership

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

Owner name
Guido & Pierina Giosso Fmly
Mailing address
227 Concord St San Francisco CA 94112
Last sale
021411

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.

2481 San Bruno Ave, San Francisco, CA 94134
2479 San Bruno Ave, San Francisco, CA 94134
Augrented Insights
Initial analysis

The two-story multi-family residential building at 2479-2481 San Bruno Avenue, built in 1907, is a three-unit property owned by Guido & Pierina Giosso Family. The building has undergone several significant maintenance and safety-related upgrades over the past two decades. Most recently, in 2023-2024, the property received updates including a new wall heater installation (2023), replacement of a 50-gallon water heater (2022), and a pending awning legalization project for "Jo-Ann's Cleaners, Expert Alteration" (2024). The building has faced multiple safety and maintenance challenges, particularly in 2021-2023, including issues with rodent infestation, plumbing compliance, security systems, and a heat outage, though these violations have since been abated. Historical records show recurring maintenance needs, such as a roof replacement in 2004, electrical service upgrade in 2007, and various repairs to stairways and decks in 2009-2013. The property experienced significant issues in 2009, with multiple complaints regarding electrical problems in Apartment #3, plumbing leaks, and mold concerns, which required several repairs and inspections. A fire safety complaint regarding blocked exits was addressed promptly in 2013. Recent 311 calls from late 2024 have primarily concerned external issues such as sidewalk defects and graffiti, which are being addressed by city agencies.

The building's history reflects a pattern of responsive maintenance and repair work, with most violations being addressed through appropriate permits and inspections. The property has demonstrated an ongoing commitment to maintaining its infrastructure, as evidenced by regular updates to essential systems such as heating and water supply. The recent awning legalization project (2024) appears to be the latest effort to bring the property into full compliance with municipal requirements, following earlier incidents of unauthorized modifications.

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

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Risk rating

How 2479-2481 San Bruno 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
11th percentile

Out of 255 buildings in this neighborhood, 227 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
35%
No DBI
violation
65%
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.

NOV rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 19.2%
Moderate concern 47.4%
Severe concern 33.4%
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

2479-2481 San Bruno Ave event timeline

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

2026
DBI Complaint Jan 20
Construction work everyday including sundays and holidays for over a year. recently got a permit to do work however didn't have one for all of 2025 despite work done. presently ontinues loud work on sundays and/or holidays. please inform and request compliance of hours and days not work is not permited. (311 sr 101003336180)
Code Enforcement Section

See all 16 events

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

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Every record we have

Full data for 2479-2481 San Bruno 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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