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750-752 20Th Ave

Central Richmond, SF 94121 1662030A 2 units · 2 fl · 1924

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 750-752 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 1924
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
Floors2
Year built1924
Total area3,352 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1662030A
Ownership

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

Owner name
Lum Millicent
Mailing address
153 Collins St San Francisco CA 94118
Last sale
121919

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.

752 20th Ave, San Francisco, CA 94121
750 20th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 750-752 20th Avenue is a two-unit, two-story multi-family residential building located in the Central Richmond neighborhood, owned by Millicent Lum and constructed in 1924. The building's maintenance history shows a completed reroofing project in 2004 costing $10,000. Of particular note are several interior surface violations that were documented in May 2004, primarily concerning lead paint hazards and the condition of ceilings, all of which were abated by June 15, 2004. Earlier issues included a heating system failure reported and resolved in January 1999, and a current active complaint from June 1998 regarding unauthorized use of the top unit (752) for a jewelry business with noise complaints, which remains unresolved as of this report.

Recent history indicates ongoing parking-related issues in the vicinity, with multiple 311 calls between 2018 and 2024 regarding vehicles blocking sidewalks and driveways, though these are external to the building itself. The most recent complaint, filed in November 2024, concerns another heating issue, though this appears to be in the early stages of resolution. The building's maintenance record shows attention to significant repairs and compliance with safety regulations, though the pattern of heating system problems, both historical and recent, may warrant attention.

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

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Risk rating

How 750-752 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
45th percentile

Out of 2250 buildings in this neighborhood, 1238 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 81.5%
Moderate concern 12.5%
Severe concern 6.0%
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

750-752 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 750-752 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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