Free SF apartment background check

42-50 Allen St

Russian Hill, SF 94109 0096012 4 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 Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 42-50 Allen 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 1910
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1910
Total area3,560 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0096012
Ownership

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

Owner name
Flora Darling 1988 Trust
Mailing address
Gloria Tornay 44 Allen St San Francisco CA 94109
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.

48 Allen St, San Francisco, CA 94109
44 Allen St, San Francisco, CA 94109
42 Allen St, San Francisco, CA 94109
50 Allen St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The property at 42-50 Allen Street is a two-story, 4-unit multi-family residential building located in Russian Hill, owned by the Flora Darling 1988 Trust and constructed in 1910. The building is currently undergoing significant interior improvements, most notably a comprehensive kitchen remodeling project in 2024 valued at $25,000, including cabinet replacement, new outlets, and plumbing upgrades, with associated electrical work for lighting and receptacles. Historically, the building has received several important infrastructure upgrades, including a 1997 concrete retaining wall replacement at the rear of the property, vinyl siding installation in 1990, and window replacements in 1984. A notable proposed development is currently under review for the conversion of unconditioned garage and storage spaces into two ADU units and a utility room, along with a voluntary seismic upgrade, which could enhance the building's safety and living options.

The building's maintenance and incident history shows regular upkeep and response to various urban challenges typical of the neighborhood, including several street cleaning issues in 2022-2024 and parking enforcement matters. A recent tenant buyout occurred in July 2023 for unit 48, with compensation of $37,000 to one tenant, though no dating or amount is recorded for unit 42. The property's only significant tenant-related communication on record was a Rent Board callback in November 2023 regarding fee housing inventory and exemption status. The building's age and history of permits generally indicate proper maintenance and periodic upgrades, though prospective tenants should monitor the progress and impact of the proposed ADU conversion.

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

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Risk rating

How 42-50 Allen 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
41th percentile

Out of 1133 buildings in this neighborhood, 668 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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 44.9%
Moderate concern 25.8%
Severe concern 29.3%
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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The story over time

42-50 Allen St event timeline

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

2026
311 Request Apr 25
Sidewalk defect
collapsed sidewalk
311 RequestApr 25
Pavement defect

See all 14 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 42-50 Allen 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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