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1459 20Th Ave

Central Sunset, SF 94122 1833009 2 units · 2 fl · 1945

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 Sunset
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Central Sunset average of 0.7.

Rent & eviction protection

Is 1459 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 1945
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 built1945
Total area3,752 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1833009
Ownership

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

Owner name
Cecilia Kwan Trust
Mailing address
Kwan Cecilia Trustee 1894 31St Ave San Francisco CA 94122
Last sale
080103

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 1459 20th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Sunset neighborhood, built in 1945 and currently owned by the Cecilia Kwan Trust. The most significant recent modification to the building occurred in 2015 when unauthorized modifications were rectified, including the removal of an illegal kitchen and its conversion into a laundry facility. This project, costing $48,000, involved the legalization of two existing bedrooms, a multipurpose room, and the conversion of a full bathroom into a half bathroom on the ground floor, along with corresponding electrical and plumbing upgrades that were properly permitted and completed. Prior to this, in 2014, the building underwent necessary infrastructure maintenance with the repair and replacement of the sewer house trap.

The building's earlier history shows several permitted improvements from the late 1990s, including a horizontal addition, bathroom layout revision, fire escape stair replacement, and stair modifications, all of which were successfully completed. Two permits from 2001 and 1999 related to garage stucco work and reroofing respectively are listed as expired, though it's unclear if this work was ever completed. Between 2014 and 2021, there have been multiple 311 calls related to street and sidewalk conditions near the property, including reports of waste and general cleaning needs, but these were primarily external to the building itself and were all resolved by city services. A notable incident occurred in 2014 when city officials conducted a site visit regarding plumbing permit verification, which appears to have been resolved satisfactorily.

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

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Risk rating

How 1459 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
84th percentile

Out of 814 buildings in this neighborhood, 130 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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.

Neighborhood location

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

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 80.2%
Moderate concern 14.4%
Severe concern 5.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1459 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 1459 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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