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4027 Noriega St

Outer Sunset, SF 94122 2084024 3 units · 2 fl · 1919

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Outer Sunset
Above average
avg 1.8
14
FewerMore

This building has 14 novs (7y), above the Outer Sunset average of 1.8.

Rent & eviction protection

Is 4027 Noriega 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 1919
2 or more units
3 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
Units3
Floors2
Year built1919
Total area4,890 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2084024
Ownership

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

Owner name
Bozionelos Jim
Mailing address
1559 46th Ave San Francisco CA 94122
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 property at 4027 Noriega Street in San Francisco's Outer Sunset neighborhood is a 2-story, multi-family residential building constructed in 1919, containing three units plus a storefront. Currently owned by Bozionelos Jim, the building has undergone significant recent changes, particularly concerning the commercial portion. Most notably, the ground-floor space transitioned from a paint store to "Muscle Beach" fitness gym, with unauthorized modifications including four skylights, new signage, and electrical work, which led to an active building violation filed in February 2024. Despite these violations, a permit was issued in August 2024 for the gym conversion and associated alterations, suggesting attempts to legalize the changes. The building has experienced persistent issues with noise, particularly regarding early-morning disturbances from gym operations, with multiple 311 calls about excessive noise recorded between August 2024 and January 2025. Infrastructure improvements are evident, including completed sewer lateral replacement in July 2023 and gas houseline extension work in May 2023. The property has a history of tenant buyouts, with one recorded in November 2021 for $37,600.

The recent commercial modifications and their impact on the residential portion of the building are of particular note, with complaints about lack of soundproofing between the gym and adjacent residences. The property has seen multiple enforcement actions and resident complaints regarding unauthorized work, though there appears to be an ongoing effort to bring the gym's operations into compliance through proper permitting processes. The building's dual-use as a multi-family residential and commercial space continues to generate regulatory and resident concern, particularly around noise and construction compliance issues.

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

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Risk rating

How 4027 Noriega 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
6th percentile

Out of 632 buildings in this neighborhood, 594 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
31%
No DBI
violation
69%
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.

Neighborhood location

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

DBI complaint rate, owner's portfolio

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

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 15.9%
Moderate concern 9.9%
Severe concern 74.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

4027 Noriega St event timeline

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

2026
Plumbing Permit Jan 29
Commerical: install new supply air system.
Complete
Electrical PermitJan 15
Installation of electrical provisions for air exhaust fan in rear area of fitness gym.

See all 27 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4027 Noriega 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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