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747-749 20Th Ave

Central Richmond, SF 94121 1663009 2 units · 2 fl · 1923

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Central Richmond — not a forecast
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 747-749 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 1923
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1923
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1923
Total area3,610 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1663009
Ownership

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

Mailing address
749 20th Ave San Francisco CA 94121
Last sale
—

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

747 20th Ave, San Francisco, CA 94121
749 20th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 747-749 20th Avenue in the Central Richmond neighborhood is a two-story flats and duplex structure built in 1923, currently owned by the Wong Calvin Y & Mai T Trust. The building has undergone some significant improvements over the years, most notably a substantial renovation in October 2017 that included the installation of a replacement window facing the backyard garden and conversion of wooden sidings to more durable Hardie cement plank sidings, along with CDX wood sheathing, with a documented cost of $30,000. Additionally, there is a historical record of reroofing work completed in March 1997, though this permit has since expired.

The property has experienced numerous parking-related incidents in the surrounding area, particularly during 2019-2024, though these incidents have not directly involved the building itself. There were eight reports of abandoned vehicles or illegal parking situations, including multiple cases of vehicles that were gone by the time authorities arrived, one instance of an unverified parking issue, and one case where a citation was issued. The most recent incident reported was an abandoned vehicle case from August 2024, with all external incidents resolving without direct impact on the property. While these parking issues appear to be a recurring theme in the neighborhood, they seem to be managed through appropriate channels as demonstrated by the various agency responses recorded in the 311 call data.

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

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Risk rating

How 747-749 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
50thpercentile

Out of 2250 buildings in this neighborhood, 1125 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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.

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 risk forecast
Low failure risk 15%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

747-749 20Th Ave apartment reviews

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On the map

Compare nearby alternatives

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Buildings nearby
8 found
The story over time

747-749 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 747-749 20Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 747-749 20Th Ave compares to the neighborhood

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