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33 Congo St

Sunnyside, SF 94131 3143001 4 units · 2 fl · 1900

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 Sunnyside
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Sunnyside average of 1.9.

Rent & eviction protection

Is 33 Congo 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 1900
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH1
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
Units4
Floors2
Year built1900
Total area3,088 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3143001
Ownership

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

Owner name
Nip Cho Wah & Lei Corinna
Mailing address
2415 43rd Ave San Francisco CA 94116
Last sale
091417

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.

101 Flood Ave, San Francisco, CA 94131
33 Congo St, San Francisco, CA 94131
Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 33 Congo Street in Sunnyside, owned by Nip Cho Wah & Lei Corinna, has undergone several significant improvements and faced various challenges since its construction in 1900. Most recently, in 2023, the property received extensive upgrades including bathroom relocations, new laundry facilities, and heating improvements in units 101, 103, and 105, with associated plumbing and electrical work completed in 2024 for new water heaters and bathroom features. In 2021, unit renovations included kitchen and bathroom updates, and between 1999-2000, major maintenance work was performed including reroofing and deck repairs. The building's history includes a notable cluster of violations in 2002 related to safety and maintenance issues, including egress obstruction, stair repairs, and various fire safety concerns, all of which were abated by October 2002. While there have been regular routine inspections in 2007 and 2009, and a violation in 2009 regarding fire extinguisher maintenance, these issues were addressed and resolved. The property has recently experienced some external challenges with multiple reports of sidewalk debris and garbage issues in late 2024, though most of these cases have been promptly resolved. A flooding incident was reported and resolved in December 2024, representing one of the more recent infrastructure concerns.

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

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Risk rating

How 33 Congo 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
24th percentile

Out of 129 buildings in this neighborhood, 98 are predicted to be safer.

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

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 54.7%
Moderate concern 19.3%
Severe concern 26.0%
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

33 Congo St event timeline

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

2025
311 Request Feb 24
Abandoned vehicle
Parking Enforcement

See all 10 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 33 Congo 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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