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3560 21St St

Eureka Valley/Dolores Heights, SF 94114 3606023 10 units · 3 fl · 1930

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3560 21St St 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 1930
2 or more units
10 units
Property type
Multi-Family Residential
Zoning
RM1
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 1930
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
Units10
Floors3
Year built1930
Total area7,056 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3606023
Ownership

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

Mailing address
John Conomos / David Esler Po Box 156402 San Francisco CA 94115
Last sale
072011

Landlord portfolio

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

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Augrented Insights
Initial analysis

This three-story, 10-unit multi-family residential building at 3560 21st Street, located in the Eureka Valley/Dolores Heights neighborhood, was built in 1930 and is currently owned by 3560 21st Street Invstrs Llc. The property has undergone several significant improvements over the years, including completion of a soft-story retrofit in 2016 (with $80,000 in work) to meet seismic safety requirements, reroofing in 2021 (though this permit expired), and installation of a new steam boiler in 2017. The building's maintenance history shows attention to basic infrastructure needs, including window replacements in 1998, plumbing repairs in 2009, and electrical system upgrades in 2003-2004.

The property has experienced multiple maintenance and safety compliance issues over the years, with the most recent concerns emerging from a December 2022 active complaint regarding fire safety/fire escape/structural problems on the roof. Recent fire safety violations issued in September 2024 included issues with the alarm system and fire extinguishers, though these were subsequently abated by October 2024. The building has a documented history of water-related issues, including plumbing leaks, mold problems in 2013, and a water leak incident in August 2024. Additional historical violations from 2001 involved multiple safety concerns including fire proofing, handrails, stairs, and self-closing devices, though these were resolved by April 2001.

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

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Risk rating

How 3560 21St St'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
8th percentile

Out of 1278 buildings in this neighborhood, 1176 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
38%
No DBI
violation
62%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 22.8%
Moderate concern 39.6%
Severe concern 37.5%
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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On the map

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The story over time

3560 21St St event timeline

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

2025
311 Request Dec 31
Not offensive
street

See all 8 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3560 21St St 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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