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2123-2125 Bay St

Marina, SF 94123 0928031 2 units · 2 fl · 1927

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 Marina
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Marina average of 1.1.

Rent & eviction protection

Is 2123-2125 Bay 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 1927
2 or more units
2 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
Units2
Floors2
Year built1927
Total area3,300 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0928031
Ownership

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

Owner name
Castellucci Marco
Mailing address
1757 Union St San Francisco CA 94123
Last sale
051311

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.

2125 Bay St, San Francisco, CA 94123
2123 Bay St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The 2123-2125 Bay Street property is a two-unit multi-family residential building located in San Francisco's Marina neighborhood. This two-story flats and duplex structure, built in 1927 and currently owned by Marco Castellucci, has undergone several significant improvements and faced some recurring issues over the years. Most notably, in 2010, the building required compliance work following a physical inspection report (CC-5741), which involved plumbing and electrical updates, and had roof work completed in 2007. A significant modern upgrade to the property was the installation of solar panels in 2019, demonstrating a commitment to sustainable energy.

The property has faced persistent parking-related challenges, with multiple documented incidents of driveway blocking between 2019 and 2024, including two citations issued in December 2024 alone. Other notable historical improvements include brick veneer replacement in 1992 and structural enhancements in 1989, which included bolting the mudsill to the foundation. The building underwent a condo conversion in the past, with approvals documented in Planning Records. While there have been various service requests and enforcement actions related to parking issues outside the property, the building's maintenance history shows regular upkeep, with no major safety or habitability concerns currently noted in the available records.

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

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Risk rating

How 2123-2125 Bay 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
60th percentile

Out of 988 buildings in this neighborhood, 395 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.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

DBI complaint rate, owner's portfolio

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

12-Month severity forecast
No violation 79.1%
Moderate concern 14.4%
Severe concern 6.5%
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

2123-2125 Bay St event timeline

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

2026
311 Request Mar 22
Blocking driveway cite only
Parking Enforcement
311 RequestMar 20
Blocking driveway cite only

See all 3 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2123-2125 Bay 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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