Free SF apartment background check

2936 21St St

Inner Mission, SF 94110 3612016 2 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 Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 2936 21St 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
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 built1900
Total area2,331 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3612016
Ownership

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

Owner name
Pon Jimmy C & Jia Hao
Mailing address
1175 Nimitz Dr Daly City CA 94015
Last sale
092398

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit multi-family residential building at 2936 21st Street in the Inner Mission, owned by Pon Jimmy C & Jia Hao, is a two-story flats and duplex structure built in 1900. The building's most notable structural modification occurred in 1988 with a completed horizontal extension project. Of significant concern is a housing-related complaint filed in December 2022 regarding a 60-year-old resident allegedly living in hazardous hoarding conditions, though this case is currently listed as not active with Housing Inspection Services.

The most recent inspection of the property's environmental conditions reveals a substantial pattern of debris management issues over the past year, with multiple reports (eight in total) between September 2024 and December 2024 documenting various types of garbage and abandoned items, including loose debris, yard waste, furniture, and a mattress. While most of these cases were resolved through appropriate channels, their frequency suggests ongoing maintenance challenges in the vicinity. Additionally, there have been three documented incidents of illegal parking in the surrounding area between April and September 2024, all of which were resolved by parking enforcement. The building's records show no documented tenant buyouts or eviction proceedings, and no recent significant structural modifications or safety violations beyond the 2022 hoarding complaint.

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

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Risk rating

How 2936 21St 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
28th percentile

Out of 2380 buildings in this neighborhood, 1714 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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building age

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast
No violation 42.1%
Moderate concern 42.2%
Severe concern 15.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2936 21St St apartment reviews

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The story over time

2936 21St St event timeline

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

2022
DBI Complaint Dec 23
The caller is a concerned neighbor. caller's 60's year old neighbor is living in a dangerous hoarding situation, he often brings things home that he finds on the street, and doesn't change his clothes for weeks at a time.
Housing Inspection Services

See all 1 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2936 21St 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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