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1685 48Th Ave

Outer Sunset, SF 94122 1895021 2 units · 1 fl · 1938

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 1685 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 1938
2 or more units
2 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
Units2
Floors1
Year built1938
Total area1,956 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1895021
Ownership

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

Owner name
Kam Fung Lum 2006 Lvg Tr
Mailing address
Lum Kam Fung Trustee 1586 33Rd 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 two-unit residential building at 1685 48th Avenue in San Francisco's Outer Sunset neighborhood is a single-story flats and duplex structure built in 1938, currently owned by the Kam Fung Lum 2006 Living Trust. The building's maintenance records show one significant improvement, with a complete re-roofing project undertaken in November 2016 at a cost of $14,000.

The property has experienced recurring issues with street and sidewalk cleanliness, particularly regarding loose garbage, with multiple reports filed between April 2020 and July 2023, all of which were resolved by the Department of Public Works. Parking-related incidents have been notably frequent, with four documented cases of driveway blocking between 2020-2024, including one confirmed citation in April 2020 for a Honda Fit. Two parking enforcement calls in 2023 and 2024 for vehicles either parking on the sidewalk or blocking driveways resulted in officers being unable to locate the offending vehicles. There was also one report of an abandoned vehicle in December 2021, which was resolved when the vehicle was no longer at the location upon inspection. The building's most recent complaints have been primarily related to street cleaning issues, though no serious safety concerns or building code violations are apparent in the available records.

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

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Risk rating

How 1685 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
38th percentile

Out of 632 buildings in this neighborhood, 392 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
71%
No DBI
violation
29%
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 65.1%
Moderate concern 27.2%
Severe concern 7.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1685 48Th Ave apartment reviews

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The story over time

1685 48Th Ave event timeline

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

2024
311 Request Oct 07
Blocking driveway cite only
Parking Enforcement

See all 4 events

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

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Every record we have

Full data for 1685 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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