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878-880 39Th Ave

Outer Richmond, SF 94121 1681006I 2 units · 2 fl · 1925

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 Outer Richmond — not a forecast
At or below average
avg 0.7
0
FewerMore

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

Rent & eviction protection

Is 878-880 39Th 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 1925
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 1925
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 built1925
Total area3,394 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1681006I
Ownership

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

Mailing address
Hall-zazueta Trust 1826 47Th Ave San Francisco CA 94122
Last sale
March 31, 2020

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.

880 39th Ave, San Francisco, CA 94121
878 39th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The Reffell Family Trust owns this two-unit multi-family residential building located at 878-880 39th Avenue in San Francisco's Outer Richmond neighborhood. Built in 1925, this two-story flats and duplex building has undergone significant recent improvements, most notably a comprehensive window replacement project in 2023, which involved installing 18 new vinyl and aluminum windows at the rear and side of the building ($22,533), following an earlier window replacement project in January 2023 costing $35,000 for 11 street-visible windows. The building successfully completed a condo conversion in 2021 (CC-8454) and underwent several important updates in 2020-2021, including backflow assembly installations, various plumbing corrections, and the installation of new appliances. A substantial electrical upgrade was completed in October 2023, replacing the fuse panel with a new sub-panel and adding new circuits and outlets throughout the unit. Other notable improvements include a 400-amp service upgrade in 2021, reroofing in 2010, and a staircase replacement in 1994.

The building has maintained a good safety record, with no reported fire incidents or civilian injuries. The property underwent required compliance work following physical inspection report #CC8454 in July 2021, which was completed successfully. Recent electrical work in 2023 included modernizing the electrical system with new circuits and outlets, demonstrating ongoing maintenance and upgrading of essential building systems. While there have been several 311 calls regarding the property between 2022 and 2025, most of these were related to street-related issues such as lighting, parking enforcement, and general cleaning, rather than building-specific concerns. The management has shown proactive maintenance through regular updates to windows, electrical systems, and compliance with safety requirements, indicating responsible stewardship of the property.

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

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Risk rating

How 878-880 39Th 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

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
96thpercentile

Out of 1040 buildings in this neighborhood, 42 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
94%
No DBI
violation
6%
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 age

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

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month risk forecast
Low failure risk 6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

878-880 39Th Ave apartment reviews

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The story over time

878-880 39Th Ave event timeline

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

2025
Plumbing Permit Feb 17
Work category: 1m; mitsubishi 4-zone mini-splits installation
Expired
Electrical PermitFeb 17
Mitsubishi 4-zone mini-splits installation

See all 12 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 878-880 39Th Ave apartments

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

Side by side

How 878-880 39Th Ave compares to the neighborhood

This building against comparable properties in Outer Richmond. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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