Free SF apartment background check

301 Clipper St

Noe Valley, SF 94114 6554001 9 units · 3 fl · 1926

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 Noe Valley
Above average
avg 1.2
9
FewerMore

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

Rent & eviction protection

Is 301 Clipper 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 1926
2 or more units
9 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
Units9
Floors3
Year built1926
Total area7,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6554001
Ownership

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

Owner name
Clara Martorana Exempt Fmly
Mailing address
Martorana Ronald Trustee 39 Humboldt Ct Pacifica CA 94044
Last sale
110615

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 9-unit, 3-story apartment building at 301 Clipper Street in Noe Valley, owned by Clara Martorana Exempt Family, was constructed in 1926 and has undergone several significant safety improvements over the years. Most notably, in 2023, the building received a comprehensive fire alarm system upgrade, including the installation of 5 new pull stations, 5 smoke detectors, and low-frequency sounders in sleeping rooms, followed by additional work in September 2023 adding horns/strobes on the ground floor. The building's safety systems have been consistently maintained, with recent fire safety concerns being addressed promptly, including a violation for emergency lighting repair in 2024 that was abated. The building completed its mandatory soft-story retrofit work (classified as Tier 3) in 2015, which included the installation of new hold downs and shear walls at the ground floor, demonstrating compliance with San Francisco's seismic safety requirements.

The property has a history of addressing maintenance and safety issues, with several building violations from 2001 that were resolved by September of that year, including concerns about fire escape ladders, fire proofing, and staircase repairs. More recent building complaints include damaged basement ceiling surfaces (2023) and previous issues with water leaks and wall cracks (2010), though these have been resolved. The building's infrastructure has been modernized over the years, including the installation of 66 replacement windows in 2003, upgrade of electrical systems with 50A subpanels in 2020, and the addition of a new steam heating boiler in 2010. Recent 311 calls from 2024-2025 primarily relate to parking enforcement issues, which while not directly related to building conditions, indicate ongoing neighborhood activity around the property. The building's maintenance record shows regular attention to both fire safety systems and general building upkeep, with most issues being addressed promptly as they arise.

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

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Risk rating

How 301 Clipper 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 1879 buildings in this neighborhood, 1766 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
40%
No DBI
violation
60%
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.

Building size

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 40.5%
Moderate concern 42.8%
Severe concern 16.7%
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

301 Clipper St event timeline

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

2026
311 Request Jun 04
Blocking driveway cite tow
Parking Enforcement
Fire ComplaintJun 04
Alarm Systems

See all 21 events

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

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Every record we have

Full data for 301 Clipper 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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