Free SF apartment background check

1383 21St Ave

Central Sunset, SF 94122 1776009Q 2 units · 2 fl · 1940

This building has a substantial enforcement record over the last seven years, but recent activity points to a low risk of further maintenance problems in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Central Sunset — not a forecast
Above average
avg 0.7
11
FewerMore

This building has 11 novs (7y), above the Central Sunset average of 0.7.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 1383 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 1940
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1940
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1940
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1776009Q
Ownership

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

Owner name
Mailing address
Dr & Mrs Donald T Jung 20387 Clifden Way Cupertino CA 95014
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 1383 21st Avenue in the Central Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1940, currently owned by the Jung Family Trust. The building has experienced significant maintenance issues, particularly evident in early 2024 when multiple violations were issued, including problems with mold/mildew on walls, damaged walls, weatherproofing issues with siding, and various other maintenance concerns. These violations, filed on February 26, 2024, were all officially abated by July 12, 2024, suggesting remediation efforts were undertaken. During this period, the owners filed multiple building permits to address structural and safety concerns, including repairs to dry rot on decks and stairs, roofing work, and other maintenance tasks totaling approximately $19,000 in permitted work. A significant complaint was logged by tenants in February 2024 regarding water intrusion, window issues, peeling paint, and balcony deterioration, though records indicate that about 20-25 contractors had previously inspected the unit. An electrical upgrade was completed in 2013 for the ground level breezeway, and three complaints regarding an alleged illegal unit downstairs were filed in June 2013, though these were subsequently closed without resolution. The front windows, mentioned in multiple complaints, were reportedly experiencing issues with water damage and swelling. The building has a history of various maintenance and compliance issues that require monitoring, although recent permits and completed work suggest active management of some of these concerns.

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

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Risk rating

How 1383 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
63rdpercentile

Out of 814 buildings in this neighborhood, 301 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month risk forecast
Low failure risk 13%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1383 21St Ave apartment reviews

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On the map

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The story over time

1383 21St Ave event timeline

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

2024
311 Request Nov 17
Blocking driveway cite only
Parking Enforcement
Building PermitMay 06
Repair minor dryrot at sheathing and joist on deck etc to comply with points 2,3,+4 of nov 202419962, less than 50%

See all 10 events

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

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Every record we have

Full data for 1383 21St Ave apartments

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

Side by side

How 1383 21St Ave compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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