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1239-1241 Jackson St

Nob Hill, SF 94109 0188024 2 units · 2 fl · 1907

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 Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1239-1241 Jackson 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 1907
2 or more units
2 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
Units2
Floors2
Year built1907
Total area3,120 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0188024
Ownership

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

Owner name
Wong Lucky Johnny H D Wong
Mailing address
1239 Jackson St San Francisco CA 94109
Last sale
091410

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.

1239 Jackson St, San Francisco, CA 94109
1241 Jackson St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The property at 1239-1241 Jackson Street is a two-unit multi-family residential building located in San Francisco's Nob Hill neighborhood. Built in 1907, this two-story flats and duplex structure is currently owned by Wong Lucky Johnny H D Wong. The building's record shows minimal major modifications, with only one building permit of note - a street space permit issued in 2013 at a nominal cost of $1. The building's history includes one building complaint from March 2001 regarding unauthorized window replacements, though this issue was promptly abated within four days and is no longer active.

The property's recent maintenance and safety record is dominated by street-level environmental issues rather than building-specific concerns. In the past four years, there have been several incidents requiring municipal intervention, including a mattress removal in July 2024, human or animal waste cleanup in September 2023, and various instances of street cleaning needs between 2019-2021 involving loose garbage and hazardous materials like glass. There were two reports of abandoned vehicles near the property in May and June 2021, with one vehicle being towed. While these street-level issues have required attention, they appear to be typical urban maintenance matters rather than issues directly affecting the building's structure or resident safety.

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

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Risk rating

How 1239-1241 Jackson 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
79th percentile

Out of 1125 buildings in this neighborhood, 236 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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 (ZIP code)

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

Building permits, owner's portfolio

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

Building age

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

12-Month severity forecast
No violation 75.3%
Moderate concern 13.4%
Severe concern 11.3%
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

1239-1241 Jackson St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 1239-1241 Jackson 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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