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1251-1253 21St Ave

Central Sunset, SF 94122 1729010 2 units · 2 fl · 1910

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 1251-1253 21St 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 1910
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 built1910
Total area2,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1729010
Ownership

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

Owner name
Young Family Revoc Tr 2009
Mailing address
Young Dexter Wayne & Ellen 718 17Th Ave San Francisco CA 94121
Last sale
000000

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.

1253 21st Ave, San Francisco, CA 94122
1251 21st Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The Young Family Revocable Trust 2009 owns this two-unit multi-family residential building located at 1251-1253 21st Avenue in San Francisco's Central Sunset neighborhood. Built in 1910, this two-story flats and duplex structure has undergone several significant maintenance and repair projects over the past decades. The most substantial work occurred in 2011 when the rear deck was replaced due to dry rot issues, and in 2007 when a complete reroofing project was carried out at a cost of $10,250. The building experienced a notable safety incident in January 2003 when combustible storage and flammable containers were found in the garage area, though these violations were promptly addressed and abated by March 2003. Additional maintenance work includes termite repairs from 1990, and more recent infrastructure attention such as a missing side sewer vent cover reported in 2019 that remains open as of the latest information.

The property has seen minimal recent issues impacting resident safety or comfort, though there were two instances of driveway blockage reported in 2019, both of which were resolved when authorities were unable to locate the offending vehicles. A recent 2024 complaint regarding graffiti on the building was closed without action taken due to lack of response from the Department of Public Works. While the building has a history of maintenance issues from the early 2000s and prior, including deck-related problems and some fire safety concerns, these have been addressed through appropriate repairs and corrections. The most recent building permits and violations indicate that while regular maintenance continues to be required, there have been no significant safety violations or habitability concerns in recent years.

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

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Risk rating

How 1251-1253 21St 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
41th percentile

Out of 814 buildings in this neighborhood, 480 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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 74.8%
Moderate concern 20.0%
Severe concern 5.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1251-1253 21St Ave apartment reviews

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The story over time

1251-1253 21St Ave event timeline

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

2024
311 Request May 23
Graffiti on building residential
Building residential - Not Offensive

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1251-1253 21St Ave apartments

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

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