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1281-1283 48Th Ave

Outer Sunset, SF 94122 1702027 2 units · 2 fl · 1959

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 1281-1283 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 1959
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
Floors2
Year built1959
Total area2,225 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1702027
Ownership

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

Owner name
Nguyen Viet J
Mailing address
914 Diamond St San Francisco CA 94114
Last sale
032516

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.

1283 48th Ave, San Francisco, CA 94122
1281 48th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The 1281-1283 48th Avenue property is a two-unit, two-story multi-family residential building located in San Francisco's Outer Sunset neighborhood. Built in 1959 and currently owned by Nguyen Viet J, this flats and duplex structure has undergone several significant renovations and faced various challenges over its history. Most recently, in January 2023, the building received a complete reroofing project costing $12,000. In 2016, substantial bathroom renovations were completed on the second floor, including shower pan replacement and the installation of new ceramic tiles, along with electrical work for a new exhaust fan with light.

The building's permit history reveals several expired permits from 1999-2000, including proposals for constructing fire-rated walls and modifications to social rooms, along with stair rebuilding work. A notable violation related to proposed social rooms and rear stairs was filed in 2000 but was abated by October of the same year. The property experienced a tenant buyout of $40,000 involving two tenants in August 2015, and there was a brief complaint in 2001 regarding an illegal garage unit that was resolved within 11 days. The building's maintenance record shows various municipal service calls primarily related to street and parking issues around the property, including multiple reports of blocked driveways and abandoned vehicles between 2019-2022. While there was one electrical incident reported in the fire records, it resulted in no civilian injuries. Additionally, there was a sewage backup incident reported in 2011 that was resolved through the Public Utilities Commission.

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

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Risk rating

How 1281-1283 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
52th percentile

Out of 632 buildings in this neighborhood, 303 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 69.5%
Moderate concern 25.6%
Severe concern 4.9%
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

1281-1283 48Th Ave event timeline

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

2023
Building Permit Jan 18
Reroofing
$12,000 · Complete

See all 1 events

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

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Every record we have

Full data for 1281-1283 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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