Free SF apartment background check

1401 48Th Ave

Outer Sunset, SF 94122 1805048 4 units · 2 fl · 1956

This building has significantly more problems than most nearby buildings. 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 1401 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 1956
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1956
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units4
Floors2
Year built1956
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1805048
Ownership

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

Mailing address
1401 48th Ave San Francisco CA 94122
Last sale
061703

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 residential building at 1401 48th Avenue in San Francisco's Outer Sunset neighborhood has been owned by Raymond Y X and X Huang since its construction in 1956. Over the past seven years, the property has generated 96 service requests through the 311 system, with the most recent cluster of activity occurring in 2025-2026. During this period, there have been multiple infrastructure-related concerns including a currently open pavement defect reported in June 2026, and at least three instances of illegal parking or driveway blocking (in April and November 2025), though these were resolved through officer intervention in two cases. The building has also experienced some maintenance-related issues, including a furniture debris report in July 2026 that couldn't be located, and several public infrastructure concerns such as transit shelter and signal box issues, both of which were resolved.

The fire safety record for the property shows minimal incidents, with only two recorded fire events in the past seven years—one being a false alarm in July 2024 that resulted in no injuries or fatalities. While the volume of 311 service requests is relatively high compared to some properties, it's worth noting that many of these are linked to external infrastructure rather than internal building issues. The most recent service requests have primarily concerned public space matters rather than building-specific problems, though the open pavement defect from June 2026 may warrant attention.

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

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Risk rating

How 1401 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
19th percentile

Out of 632 buildings in this neighborhood, 512 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
51%
No DBI
violation
49%
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.

Number of units

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

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.

12-Month severity forecast
No violation 32.9%
Moderate concern 25.6%
Severe concern 41.5%
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

1401 48Th Ave event timeline

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

2026
311 Request Jul 29
Garbage and debris
furniture
311 RequestJun 13
Pavement defect

See all 6 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1401 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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