Free SF apartment background check

1803 Judah St

Central Sunset, SF 94122 1830001 5 units · 2 fl · 1925

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Sunset
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1803 Judah St 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 1925
2 or more units
5 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units5
Floors2
Year built1925
Total area5,304 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1830001
Ownership

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

Owner name
Wong/Liang Family Trust
Mailing address
James Kwong Leung Wong & Xi 2006 34Th Ave San Francisco CA 94116
Last sale
101204

Landlord portfolio

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

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Augrented Insights
Initial analysis

The Wong/Liang Family Trust owns this 2-story, 5-unit multi-family residential building located at 1803 Judah Street in the Central Sunset neighborhood. Built in 1925, the property has undergone several significant improvements over the years, with the most substantial recent work occurring between 2021-2022 when a garage was converted into a studio ADU (Accessory Dwelling Unit) at a cost of $40,000. This renovation included comprehensive updates to the building's systems, featuring new plumbing installations, complete electrical rewiring, and an upgraded 400-amp electrical service with multiple meter sockets. The ADU project also involved important safety enhancements, including the installation of a fire sprinkler system with additional sprinklers in the new unit.

The building's maintenance history shows regular attention to basic infrastructure, including two complete roof replacements (1990 and 2013) and the installation of a voluntary partial sprinkler system in the garage and storage area in 1989. A routine housing inspection in 2001 was completed without any noted issues. More recently, the property has experienced some urban maintenance challenges typical of the area, with multiple 311 reports in 2024 primarily related to street cleaning and parking enforcement matters. These included several instances of vehicles blocking driveways, which resulted in citations being issued. While there was one recorded fire incident involving a malfunctioning smoke detector, there were no civilian injuries associated with this event. The building's records indicate substantial investment in safety and modern amenities, particularly during the recent ADU conversion project, while also showing ongoing responsiveness to both routine maintenance needs and regulatory requirements over the years.

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

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Risk rating

How 1803 Judah St'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
27th percentile

Out of 814 buildings in this neighborhood, 594 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No DBI
violation
23%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 65.9%
Moderate concern 21.5%
Severe concern 12.7%
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

1803 Judah St event timeline

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

2026
311 Request Jun 02
Blocking driveway cite only
Parking Enforcement
Electrical PermitMay 26
Change all electrical wire in the unit 1 and install one electrical panel in the unit.

See all 15 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1803 Judah St 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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