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855-859 Oak St

Hayes Valley, SF 94117 0844027 3 units · 3 fl · 1908

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 Hayes Valley
Above average
avg 2.3
14
FewerMore

This building has 14 novs (7y), above the Hayes Valley average of 2.3.

Rent & eviction protection

Is 855-859 Oak 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 1908
2 or more units
3 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.

Building characteristics
Units3
Floors3
Year built1908
Total area4,680 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0844027
Ownership

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

Owner name
Handler Leslie
Mailing address
2029 Carolyn Way Novato CA 94945
Last sale
011107

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.

857 Oak St, San Francisco, CA 94117
855 Oak St, San Francisco, CA 94117
859 Oak St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit residential building at 855-859 Oak Street in Hayes Valley, owned by Leslie Handler, is a three-story flats and duplex structure built in 1908. The property has a significant history of permit violations and building code concerns, most notably an active violation filed in 2016 regarding an unauthorized additional dwelling unit in the basement (Unit A), which allegedly lacks proper safety features like smoke detectors, carbon monoxide detectors, and adequate ventilation, along with various other safety concerns. Major structural and safety issues emerged in 2007-2008, including problems with the foundation and drainage leading to dry rot, unauthorized excavation work potentially compromising structural stability, and unpermitted kitchen and bathroom renovations. While some repairs were completed in 2018 addressing sheetrock and window dry rot, multiple active violations remain on record from 2007-2016 that were not fully resolved, including foundation issues and unauthorized construction. Recent maintenance records show the building has had recurring issues with garbage and debris management in the vicinity, as evidenced by multiple 311 calls throughout 2024, though these are external to the building itself. The most recent significant internal issue was a sewer backup discharge reported in October 2024, which was subsequently resolved. The building's permit history shows regular attempts to address various maintenance and safety issues, including stair repairs in 2016 and various remodeling work, though many of these projects were initiated in response to complaints and violations rather than as routine maintenance.

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

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Risk rating

How 855-859 Oak 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
55th percentile

Out of 1027 buildings in this neighborhood, 462 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.

Neighborhood location

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 55.0%
Moderate concern 19.6%
Severe concern 25.4%
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

855-859 Oak St event timeline

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

2025
311 Request Sep 05
Not offensive
building other
311 RequestAug 02
Other reallocate

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Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 855-859 Oak 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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