Free SF apartment background check

290-296 21St Ave

Central Richmond, SF 94121 1413024 4 units · 2 fl · 1922

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 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 290-296 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 1922
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
OTCLEM
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 built1922
Total area5,578 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1413024
Ownership

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

Owner name
Lum Karen
Mailing address
3201 Balboa St San Francisco CA 94121
Last sale
010621

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.

294 21st Ave, San Francisco, CA 94121
290 21st Ave, San Francisco, CA 94121
296 21st Ave, San Francisco, CA 94121
292 21st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 290-296 21st Avenue is a 2-story, 4-unit multi-family residential building located in San Francisco's Central Richmond neighborhood, constructed in 1922 and currently owned by Karen Lum. The building has undergone significant renovation work in recent years, particularly between 2016-2021, including substantial unit remodels to increase bedroom and bathroom capacity, with completed projects in units 290 (3 bedrooms, 2 full baths, and a powder room) and 292 (kitchen and bathroom renovations), along with building improvements such as reroofing in 2016. A major 2021 permit filed proposed converting a first-floor garage space into commercial space and restoring the second floor from dental office back to dwelling use. The building's history also shows a dental office conversion from an apartment in 1983 and a bathroom renovation for office use in 1984.

The property has experienced several building inspection-related incidents, including three routine inspections in 2003, 2009, and 2014, with one active routine inspection currently ongoing as of 2024. There were documented complaints about unauthorized work in 2016 and 2017, though these cases are no longer active. A fire safety violation was recorded and resolved in 2003 regarding combustible storage. Recent attention to the property's surroundings has been notable, with multiple 311 calls in late 2024 regarding street cleaning issues, including reports of garbage, debris, and abandoned items near the property, though these external matters don't directly affect the building's internal conditions. The extensive recent renovations and proper permitting processes for major improvements suggest ongoing maintenance and upgrading of the building's facilities, though the active inspection status and historical complaints indicate some past regulatory compliance issues that have since been addressed.

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

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Risk rating

How 290-296 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
21th percentile

Out of 2250 buildings in this neighborhood, 1778 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Final warnings, owner's portfolio

Final warnings issued across all buildings this owner is registered on.

12-Month severity forecast
No violation 70.4%
Moderate concern 14.5%
Severe concern 15.1%
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

290-296 21St Ave event timeline

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

2025
311 Request Dec 26
Garbage and debris
christmas tree
311 RequestOct 09
Garbage and debris

See all 6 events

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

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Every record we have

Full data for 290-296 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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