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653-655 20Th Ave

Central Richmond, SF 94121 1624005E 2 units · 1922

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 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 653-655 20Th 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
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.

Building characteristics
Units2
Floors
Year built1922
Total area2,559 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1624005E
Ownership

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

Owner name
Lui Family 2017 Trust
Mailing address
Lui Yao Teng & Chau Wo Loui 655 20Th Ave San Francisco CA 94121
Last sale
032505

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.

655 20th Ave, San Francisco, CA 94121
653 20th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 2-unit, multi-family residential building at 653-655 20th Avenue in the Central Richmond neighborhood, owned by the Lui Family 2017 Trust, was constructed in 1922 and has undergone several significant modifications over its lifetime. The most substantial work occurred in 2001-2002, when a horizontal addition was constructed with an estimated cost of $80,000, along with revisions including the installation of a new rear staircase from the second floor to grade. The building also received a new roof in 1994, though that permit has since expired. More recently, there have been notable quality of life issues impacting residents. In March 2017, there was a complaint about excessively bright, possibly unpermitted, exterior lighting that reportedly illuminated neighboring bedrooms from a significant distance. The property has also experienced some maintenance challenges, including a sewage backup incident reported and resolved in January 2024. Parking-related issues near the property appear to be a recurring concern, with multiple citations issued between 2022-2024 for vehicles blocking driveways or parking on sidewalks, suggesting limited parking availability in the area. Additionally, there was a noise complaint reported in November 2023, though the specific nature of the noise was not detailed in the records.

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

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Risk rating

How 653-655 20Th 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
94th percentile

Out of 2250 buildings in this neighborhood, 135 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 85.8%
Moderate concern 9.6%
Severe concern 4.6%
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

653-655 20Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 653-655 20Th 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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