Free SF apartment background check

566 21St Ave

Central Richmond, SF 94121 1563026 4 units · 2 fl · 1923

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 566 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 1923
2 or more units
4 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.

Building characteristics
Units4
Floors2
Year built1923
Total area3,550 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1563026
Ownership

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

Owner name
Lew Phillip
Mailing address
675 22nd Ave San Francisco CA 94121
Last sale
051297

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 566 21st Avenue property is a two-story, four-unit multi-family residential building located in San Francisco's Central Richmond neighborhood, built in 1923 and currently owned by Phillip Lew. The building has undergone several significant renovations and repairs over the past decade, with the most recent work being a comprehensive kitchen and bathroom remodel in Apartment #1 in August 2024, including electrical upgrades and plumbing relocations with an investment of $36,000. Prior improvements include the renovation of Apartment #2's kitchen and bathroom in 2016 ($25,000), foundation work in 2016 ($15,000), and a complete reroofing project in 2015 ($17,300). The building has faced several maintenance and safety issues in the past, including a notable 2017 incident involving mold and water intrusion, and multiple violations in 2000 and 2010 related to fire safety, heating, and building maintenance requirements. The 2024 remodeling work suggests current investment in improving the building's condition, though there have been recurring concerns about parking violations on the adjacent sidewalk, with five such incidents reported between May 2018 and January 2025, typically resulting in warnings or officers being unable to locate the vehicle.

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

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Risk rating

How 566 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
26th percentile

Out of 2250 buildings in this neighborhood, 1665 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No DBI
violation
23%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 59.7%
Moderate concern 20.5%
Severe concern 19.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

566 21St Ave apartment reviews

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The story over time

566 21St Ave event timeline

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

2024
Building Permit Aug 07
Apt #1: (one)kitchen remodel, install cabinets, countertop, tile, hood, (one)bathroom remodel, install tub, vanity, tile, toilet, install 50 amp panel. upgrade electrical.
$36,000 · Complete
Plumbing PermitAug 07
Apt#1 relocate the plumbing to kitchen and bathroom

See all 3 events

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

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Every record we have

Full data for 566 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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