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381-383 21St Ave

Central Richmond, SF 94121 1453017 6 units · 2 fl · 1912

This building has significantly more problems than most nearby buildings. 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 Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 381-383 21St Ave 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 1912
2 or more units
6 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
Units6
Floors2
Year built1912
Total area6,050 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1453017
Ownership

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

Owner name
Quock Fmly Lvg Tr 1999
Mailing address
David Quock Trustee 300 Granada Dr South San Francisco CA 94080
Last sale
032499

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.

381 21st Ave, San Francisco, CA 94121
383 21st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

This property at 381-383 21st Avenue is a two-story, six-unit multi-family residential building located in the Central Richmond neighborhood, under the ownership of Quock Family Living Trust 1999. Built in 1912, the building has undergone several significant updates in recent years, notably in 2021-2022 when comprehensive renovations were completed including kitchen and bathroom upgrades, electrical rewiring, and plumbing improvements with the installation of a tankless water heater. The building had some notable maintenance issues in the early 2000s that resulted in multiple violations related to fire safety, lead paint concerns, and building maintenance, all of which were resolved by 2005. A string of "Shared Spaces" complaints regarding fire safety emerged between 2018 and 2024, though most were deferred or found to have no merit.

The most recent building improvements include interior renovations and utility upgrades completed between 2020 and 2021, with additional exterior work such as siding installation. Historical permits from the 1990s show previous maintenance activities including termite repairs, reroofing, and stucco application. Recent activity (2024) has generated multiple 311 calls primarily related to public health, graffiti, pavement defects, and a shared spaces structure issue, with some cases still open. The property has experienced minimal fire-related incidents, with most being related to system malfunctions or false alarms, and historical violations regarding fire escape maintenance and sprinkler systems from 2005 were subsequently corrected. While the building has maintained active compliance with major codes since 2005, recent fire complaints suggest ongoing attention to fire safety systems in shared spaces is required.

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

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Risk rating

How 381-383 21St Ave'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
11th percentile

Out of 2250 buildings in this neighborhood, 2002 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
59%
No DBI
violation
41%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 71.6%
Moderate concern 18.0%
Severe concern 10.4%
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

381-383 21St Ave event timeline

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

2023
311 Request Aug 12
General cleaning
Other Loose Garbage
311 RequestJun 26
Blocking driveway cite only

See all 12 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 381-383 21St Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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