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683-689 21St Ave

Central Richmond, SF 94121 1623014D 4 units · 2 fl · 1923

This building has more problems than most buildings in this neighborhood. 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 683-689 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 1923
2 or more units
4 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
Units4
Floors2
Year built1923
Total area4,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1623014D
Ownership

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

Owner name
Kleinen Rae E &Catherine E
Mailing address
685 21st 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.

683 21st Ave, San Francisco, CA 94121
689 21st Ave, San Francisco, CA 94121
685 21st Ave, San Francisco, CA 94121
687 21st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

This two-story, four-unit multi-family residential building located at 683-689 21st Avenue in the Central Richmond neighborhood was built in 1923 and is currently owned by Rae E & Catherine E Kleinen. The property has undergone several notable maintenance and improvement projects over the years, including the installation of vinyl siding on two walls in 2003 ($7,500), multiple furnace replacements in the garage between 2008-2009, and routine safety inspections by Housing Inspection Services in 2011 and 2002, with no active violations noted. Historical records show earlier improvements such as reroofing in 1993 and kitchen renovations in 1987, though these permits have since expired.

Recent concerns primarily revolve around plumbing and parking issues. The building has experienced two sewage backup incidents through a 4-inch vent in late 2023 (December and January). There have been multiple parking-related enforcement actions in 2024, with at least seven citations issued for illegal parking between May and September 2024, including instances of parking on sidewalks and blocking driveways. Street space permits were issued in 2004, 2007, and 2018, though the specific nature of these permits is not detailed in the records. While the building has a history of regular maintenance and inspections, the recent concentration of sewage issues and parking violations suggests these areas require ongoing attention.

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

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Risk rating

How 683-689 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
29th percentile

Out of 2250 buildings in this neighborhood, 1598 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Neighborhood location

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

12-Month severity forecast
No violation 59.0%
Moderate concern 18.6%
Severe concern 22.3%
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

683-689 21St Ave event timeline

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

2026
311 Request Jan 19
Parking on sidewalk
Parking Enforcement

See all 5 events

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

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Every record we have

Full data for 683-689 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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