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109 Buchanan St

Hayes Valley, SF 94102 0869009 6 units · 2 fl · 1925

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 109 Buchanan 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 1925
2 or more units
6 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
Units6
Floors2
Year built1925
Total area3,360 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0869009
Ownership

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

Owner name
Segal Lvg Tr
Mailing address
Segal Andrew T & Jennifer P 125 Dogwood Rd #1098 Bolinas CA 94924
Last sale
040213

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-story multi-family residential building at 109 Buchanan Street in Hayes Valley, owned by Segal Living Trust, was constructed in 1925 and contains 6 units. The property has undergone significant safety and modernization improvements over the past two decades, including a completed soft-story retrofit in 2017 (cost: $74,000), and most recently, a 2024 fire alarm system upgrade (cost: $20,300) to comply with current fire safety standards. The building experienced multiple infrastructure improvements between 2009-2010, including the addition of a new unit at the rear of the garage with associated fire sprinkler installation, a 200-amp service upgrade, and the installation of modern water heating systems throughout the building.

The building's maintenance history shows attention to both unit improvements and common area safety, though there have been some recurring issues noted in inspection records. A 2005 routine inspection identified several maintenance items requiring attention, including broken glass in entrance doors, stair repairs, and ventilation issues, all of which were abated by April 2005. The property has maintained its rent-controlled status and experienced one tenant buyout in June 2018 for $65,000 involving two tenants. Recent 311 calls (2021-2024) have primarily related to street-level issues such as sidewalk maintenance, parking enforcement, and waste management, with some ongoing concerns about sidewalk defects and waste removal as of 2024. The building's parking situation has been subject to variances, with records showing changes to off-street parking provisions during unit modifications, and there have been three documented fire alarm system complaints since 2009, with the most recent violation in 2019 being abated through corrective action.

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

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Risk rating

How 109 Buchanan 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
43th percentile

Out of 1027 buildings in this neighborhood, 585 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
63%
No DBI
violation
37%
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 52.1%
Moderate concern 20.9%
Severe concern 27.0%
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

109 Buchanan St event timeline

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

2025
311 Request Sep 03
311 service request
Encampment

See all 3 events

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

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Every record we have

Full data for 109 Buchanan 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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