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2717 21St St

Inner Mission, SF 94110 4144038 2 units · 2 fl · 1900

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 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 2717 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
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
Units2
Floors2
Year built1900
Total area3,360 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4144038
Ownership

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

Owner name
Chinn Living Trust
Mailing address
Wing C & Alberta G Chinn, T 1462 19Th Ave San Francisco CA 94122
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 2717 21st Street is a two-unit, two-story multi-family residential building constructed in 1900, currently owned by the Chinn Living Trust and located in San Francisco's Inner Mission neighborhood. The building's documented history over the past decade shows a range of maintenance and public service interactions, with the most recent incident occurring in June 2024 involving sidewalk parking enforcement that resulted in an officer responding and issuing a citation. The property has experienced recurring parking enforcement issues, with similar complaints in 2021, though one was marked as "Unable to Locate". Between 2018 and 2019, the area around the building faced challenges with encampments, with two confirmed encampment removal cases, and there was also a notable tree maintenance issue in 2018 when a dying plum tree was identified for removal due to being past failure with significant dead canopy. The building's surroundings have required various municipal services, including sign repair in 2021, waste management services in 2019, and street cleaning for human or animal waste in 2016, along with a pavement defect resolution by PUC Sewer Operations in 2014. The property has maintained regular interactions with city services over the years, primarily related to parking and street maintenance issues, with most cases being officially resolved through appropriate channels.

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

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Risk rating

How 2717 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
31th percentile

Out of 2380 buildings in this neighborhood, 1642 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
53%
No DBI
violation
47%
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.

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 50.6%
Moderate concern 40.4%
Severe concern 9.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2717 21St St apartment reviews

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The story over time

2717 21St St event timeline

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

2026
311 Request Apr 22
Abandoned vehicle
Parking Enforcement

See all 2 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 2717 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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