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674-678 Oak St

Hayes Valley, SF 94117 0828015 3 units · 3 fl · 1890

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
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 674-678 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 1890
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 built1890
Total area3,524 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0828015
Ownership

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

Owner name
Brown Jennifer L
Mailing address
1025 Natoma St San Francisco CA 94103
Last sale
041416

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.

674 Oak St, San Francisco, CA 94117
676 Oak St, San Francisco, CA 94117
678 Oak St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit, three-story multi-family residential building at 674-678 Oak Street in Hayes Valley, owned by Jennifer L Brown, was constructed in 1890 and has undergone several significant renovations and repairs over the years. Most notably, in 2020, water leakage damage required repairs to the rear exterior wall of apartment 676, involving the replacement of insulation and sheetrock at a cost of $2,000. The building underwent major safety improvements in 2011-2012, including the installation of a fire sprinkler system for the garage floor and first-floor walkway ($15,000), significant electrical upgrades including a 300-amp service with four meters, and the installation of new electrical components throughout the building. During this period, multiple plumbing and electrical permits were issued and completed, suggesting a comprehensive modernization of the building's systems.

The property has experienced several concerning incidents, including a fire in 2006 (contained to one area, with no civilian injuries reported), multiple building code violations in 2008-2010 related to unsafe conditions and excavation work, and a period of blight in late 2008 with security concerns. Recent maintenance issues have included problems with the side sewer vent cover (reported September 2024) and ongoing noise complaints (July 2024). The building's history shows active management and response to maintenance issues, with most building violations being addressed and resolved, though some recent 311 calls remain open. The property has undergone significant improvements since its construction, with recent repairs focusing on modernizing systems and addressing maintenance issues, though periodic problems with security and maintenance have occurred throughout its history.

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

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Risk rating

How 674-678 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
59th percentile

Out of 1027 buildings in this neighborhood, 421 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
71%
No DBI
violation
29%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Estimated permit spend (past 7 years)

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 54.1%
Moderate concern 39.8%
Severe concern 6.1%
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

674-678 Oak St event timeline

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

2026
Building Permit May 07
Conversion of unconditioned space & a portion of unit # 2 @ 1st floor level to a new adu. reconfiguration of 2nd floor stair area within unit# 2 and reconfiguration of openings @ east wall of 1st floor. adu will be added under the state adu program.
$75,000 · Filed

See all 10 events

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

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Every record we have

Full data for 674-678 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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