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419-421 Collingwood St

Eureka Valley/Dolores Heights, SF 94114 2770024 2 units · 2 fl · 1963

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 Eureka Valley/Dolores Heights — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.4.

Rent & eviction protection

Is 419-421 Collingwood 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 1963
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 1963
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 built1963
Total area3,171 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2770024
Ownership

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

Mailing address
419 Collingwood St San Francisco CA 94114
Last sale
August 06, 2002

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.

421 Collingwood St, San Francisco, CA 94114
419 Collingwood St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 419-421 Collingwood Street in Eureka Valley/Dolores Heights, owned by Edward A. and Jane F. Tanner, is a 2-story flats and duplex structure built in 1963. The property has undergone several significant improvements over the past two decades, with the most recent major renovation occurring in 2019, which included a comprehensive interior remodel of a tenancy-in-common unit featuring a new kitchen, support beam installation, master bathroom and closet updates, with associated electrical and plumbing work totaling approximately $137,500. Earlier improvements include substantial structural work in 2008 involving beam reinforcement and column removal at the basement level, construction of a new wood deck, and various upgrades in 2004 including window replacement and rear facade renovation.

The building has experienced one notable compliance issue, with a complaint filed in September 2000 regarding an allegedly unauthorized ground floor unit that was reportedly connected to the basement, changing the occupancy classification from R3 to R1. This violation was abated by May 2001. More recent building maintenance concerns include sidewalk defects reported in October 2021 (still open as of the latest data) and various infrastructure maintenance calls, though these are primarily related to public infrastructure rather than the building itself. The property has maintained regular upkeep through various permits, including bathroom and kitchen remodels, electrical upgrades replacing damaged knob & tube wiring, and structural enhancements, suggesting ongoing maintenance and improvement by the current owners. Recent 311 calls have primarily related to street-level issues such as sidewalk cleanliness and repairs, rather than building-specific concerns.

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

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Risk rating

How 419-421 Collingwood 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

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
93rdpercentile

Out of 1278 buildings in this neighborhood, 89 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
92%
No DBI
violation
8%
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.

Neighborhood location

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Building age

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

12-Month risk forecast
Low failure risk 8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

419-421 Collingwood St event timeline

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

2025
Building Permit Dec 17
Reclad exterior front facade to include new windows and doors. no changes to interior use or layouts change under this permit. new garage door.
$125,000 · Issued
Planning RecordDec 17
Approved fpr the proposed scope of work - Reclad exterior front facade to include new windows and doors. No changes to interior use or layouts change under this permit. New garage door.

See all 5 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 419-421 Collingwood St apartments

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

Side by side

How 419-421 Collingwood St compares to the neighborhood

This building against comparable properties in Eureka Valley/Dolores Heights. Toggle filters to narrow the peer group.

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