Free SF apartment background check

1487 48Th Ave

Outer Sunset, SF 94122 1805019 3 units · 2 fl · 1904

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 1487 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 1904
2 or more units
3 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
Units3
Floors2
Year built1904
Total area1,910 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1805019
Ownership

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

Owner name
Mak Danny & You Elaine
Mailing address
2429 Chestnut St San Francisco CA 94123
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

This two-story multi-family residential building, located at 1487 48th Avenue in the Outer Sunset neighborhood, was built in 1904 and contains three units. The property has undergone several significant renovations and maintenance work over the past three decades, with the most recent major improvements including a complete reroofing project in 2022 costing $19,850 and a sewer replacement completed the same year. In 2020, comprehensive updates were made to the front building, including bathroom fixture replacement, re-tiling, kitchen renovation, and wood siding repairs (approximately 200 square feet) at an estimated cost of $38,000. An important incident occurred in 2008 when unauthorized construction work at the rear structure led to a violation notice, resulting in fines for replacement of exterior siding, windows, doors, and interior renovations, which were resolved by April 2009.

The building has a documented history of maintenance and improvements, including kitchen remodels, window replacements, and drywall repairs completed in 1991-1992, and work on the rear building in 2008-2009. Earlier building complaints from the 1990s involved issues with stairs, fences, and sidewalks, all of which were promptly addressed and abated. Recent environmental concerns have been documented through 311 calls, primarily relating to street cleaning and abandoned vehicles, though these issues are external to the building itself. All recent maintenance records indicate proper following of permit procedures, with no active violations on file, suggesting current compliance with building codes and regulations.

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

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Risk rating

How 1487 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
14th percentile

Out of 632 buildings in this neighborhood, 544 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
44%
No DBI
violation
56%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 40.7%
Moderate concern 45.0%
Severe concern 14.3%
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

1487 48Th Ave event timeline

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

2022
Plumbing Permit Jun 30
Work category: 1p; sewer replacement
Complete
Building PermitFeb 09
Reroofing

See all 3 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1487 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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