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1409 48Th Ave

Outer Sunset, SF 94122 1805050 2 units · 2 fl · 1955

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 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 1409 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 1955
2 or more units
2 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
Units2
Floors2
Year built1955
Total area2,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1805050
Ownership

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

Owner name
Mary J Zamboukos Living Tru
Mailing address
Mary J Zamboukos, Trustee 2651 17Th Ave San Francisco CA 94116
Last sale
042198

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 1409 48th Avenue in the Outer Sunset neighborhood is a two-story flats and duplex structure built in 1955, currently owned by the Mary J Zamboukos Living Trust. The building's maintenance records show a recent reroofing project permitted in August 2024 with an estimated cost of $19,600, following an earlier reroofing permit from 1999 (now expired) and historical repair work for dry rot on the front wall completed in 1989. The property underwent an electrical service upgrade in 2005, receiving a comprehensive 200-amp, two-meter service installation.

The most significant recent activity concerning this property has been a series of parking-related incidents in late 2024, with multiple reports of driveway blocking between August and November 2024. There have been ten reported cases of parking violations, with some resulting in citations, while others were either resolved without finding the offending vehicle or could not be validated by responding officers. Several cases were closed as invalid due to incomplete reporting information. A single report of sidewalk parking on March 2, 2024, was also investigated but could not be validated. While these parking issues may indicate ongoing challenges in the immediate vicinity, they primarily relate to public street use rather than the building's condition or management.

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

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Risk rating

How 1409 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
67th percentile

Out of 632 buildings in this neighborhood, 209 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

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.

12-Month severity forecast
No violation 57.2%
Moderate concern 18.6%
Severe concern 24.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1409 48Th Ave apartment reviews

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The story over time

1409 48Th Ave event timeline

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

2025
311 Request Dec 15
Parking on sidewalk
Parking Enforcement
311 RequestAug 21
Parking on sidewalk

See all 6 events

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

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Every record we have

Full data for 1409 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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