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1453 48Th Ave

Outer Sunset, SF 94122 1805012 4 units · 2 fl · 1960

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
At or below average
avg 1.8
0
FewerMore

This building has 0 novs (7y), at or below the Outer Sunset average of 1.8.

Rent & eviction protection

Is 1453 48Th 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 1960
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units4
Floors2
Year built1960
Total area4,174 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1805012
Ownership

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

Owner name
Quashnofsky Jason
Mailing address
350 Bay St Ste 100 San Francisco CA 94133
Last sale
110915

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 1453 48th Avenue in the Outer Sunset, owned by Jason Quashnofsky and constructed in 1960, has undergone several significant maintenance and improvement projects over the past two decades. Most recently, in 2021, the building received a $27,000 reroofing project, while in 2015, substantial interior updates were made including kitchen and bathroom remodels, electrical upgrades (including installation of arc fault breakers and tamper-proof grounded outlets), and window replacements. The property has a notable history of addressing maintenance issues, with records showing past concerns about gas heaters in 1998-1999, electrical problems in 1999, and various building violations in 2001 related to fire safety, security, and maintenance that were all abated by October 2001. The building's maintenance history shows ongoing attention to structural elements, including the replacement of four vinyl windows in 2003, garage door installation in 2014, and deck reconstruction in 2001. Recent activity at the property primarily consists of parking enforcement issues, with multiple citations issued in 2023-2024 for driveway blocking, though these are external to the building's condition itself.

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

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Risk rating

How 1453 48Th 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
6th percentile

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

RiskiestSafest
Predicted 12-month outcome
33%
No DBI
violation
67%
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.

Number of units

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 36.2%
Moderate concern 29.5%
Severe concern 34.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1453 48Th Ave apartment reviews

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The story over time

1453 48Th Ave event timeline

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

2025
Electrical Permit Dec 17
1453 48th avenue apt. #1, san francisco - replace federal pacific panel with siemens type
Complete
311 RequestSep 26
Garbage and debris

See all 8 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1453 48Th 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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