Free SF apartment background check

327 20Th Ave

Central Richmond, SF 94121 1452004 4 units · 2 fl · 1970

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 327 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 1970
2 or more units
4 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
Units4
Floors2
Year built1970
Total area4,228 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1452004
Ownership

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

Owner name
Lau/Fong Fmly Tr A
Mailing address
327 20th Ave Apt 3 San Francisco CA 94121
Last sale
061103

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 327 20th Avenue property is a two-story, multi-family residential building located in the Central Richmond neighborhood, containing four legal apartments and constructed in 1970. The building has experienced several significant issues over its history, particularly relating to unauthorized modifications and safety concerns. Notably, there are several active violations from 2004-2005 connected to fire safety, plumbing, and electrical systems that were documented during a routine inspection in April 2005, and an unauthorized ground floor apartment was discovered that same year, lacking proper egress and fire safety features. Despite some improvements, including a window replacement project in 2018, the building's safety concerns persist with an active violation regarding the central alarm system filed in May 2004. The property has undergone various modifications over the years, including a window replacement project in 2018, illegal kitchen removal work in 2005 (both electrical and plumbing), and various maintenance and repair activities. Recent history shows typical urban issues such as street cleaning and parking enforcement matters outside the building, with the most recent complaint being a Christmas tree removal request in January 2023 and parking violation incidents in September 2022.

The building's permit history reveals both improvement projects and remedial work, including the installation of a new hot water heater in 2008 and various structural modifications. While some permits indicate completed work, others were issued in connection with addressing violations, such as the removal of unauthorized kitchen facilities in 2005. The property has maintained its intended use as a four-unit apartment building, though historical records indicate past attempts to expand its capacity through unauthorized modifications. The building's recent maintenance record appears to focus on routine upkeep rather than major renovations, with no significant improvements or building modifications reported in the past five years. The property has undergone regular housing inspections, with the most recent routine inspection being conducted in 2007, though some historical violations remain unresolved.

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

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Risk rating

How 327 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
64th percentile

Out of 2250 buildings in this neighborhood, 810 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 76.0%
Moderate concern 14.2%
Severe concern 9.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

327 20Th Ave apartment reviews

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The story over time

327 20Th Ave event timeline

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

2026
311 Request Feb 17
Garbage and debris
christmas tree

See all 2 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 327 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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