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1949-1951 48Th Ave

Outer Parkside, SF 94116 2086003A

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 Parkside
At or below average
avg 1.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Parkside average of 1.7.

Rent & eviction protection

Is 1949-1951 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 1947
2 or more units
? units
Property type
Multi-Family Residential
Zoning
RH1
Possibly exempt. Built before 1979 but single-unit — single-family homes and condos may be exempt from the SF Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units
Floors2
Year built1947
Total area2,200 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2086003A
Ownership

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

Owner name
Kwan, Patrick W S & Yik Lin
Mailing address
Patrick W S&yik Lin Kwan 2646 40Th Ave San Francisco CA 94116
Last sale
000000

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.

1949 48th Ave, San Francisco, CA 94116
1951 48th Ave, San Francisco, CA 94116
Augrented Insights
Initial analysis

The property at 1949-1951 48th Avenue in the Outer Parkside neighborhood is a two-story multi-family residential building constructed in 1947, currently owned by Patrick W S Kwan and Yik Lin, containing no recorded units. The building's maintenance history shows several significant events, most notably a substantial reroofing project in 2021 costing $12,500, and window replacements in 2003. The property experienced multiple health and safety issues in early 2003, including water damage, mold/mildew problems, lead paint concerns, and deficiencies in safety systems such as smoke detectors and door buzzers, though all these violations were officially abated by July 2003. A subsequent lead hazard complaint was filed in 2008 regarding exterior paint scraping without proper containment.

More recent information from 2024 indicates ongoing issues with waste management at the property, with multiple complaints about garbage and debris, including violations of proper toter placement. Seven separate complaints about toters being left out continuously were recorded between April and October 2024, with some cases resulting in outreach and enforcement actions. There are also recent complaints about garbage debris (October 2024) and an encampment issue (October 2024) near the property, though these are not directly related to the building's maintenance or habitability. The building's documented permit history includes two reroofing projects (1994 and 2021) and window replacements, suggesting regular maintenance attention to major building systems.

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

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Risk rating

How 1949-1951 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
89th percentile

Out of 207 buildings in this neighborhood, 23 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.

Neighborhood location

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 73.2%
Moderate concern 23.1%
Severe concern 3.7%
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

1949-1951 48Th Ave event timeline

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

2024
311 Request Apr 15
Toters left out 24x7
N/A
311 RequestApr 05
Toters left out 24x7

See all 4 events

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

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Every record we have

Full data for 1949-1951 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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