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331 Octavia St

Hayes Valley, SF 94102 0831001A 24 units · 3 fl · 1906

This building has significantly more problems than most nearby buildings. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Hayes Valley
At or below average
avg 2.3
1
FewerMore

This building has 1 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 331 Octavia 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 1906
2 or more units
24 units
Property type
Multi-Family Residential
Zoning
RM2
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
Units24
Floors3
Year built1906
Total area13,950 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0831001A
Ownership

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

Owner name
Donald Defraga Tr
Mailing address
Defraga Donald Ttee 690 Chestnut St Apt 409 San Francisco CA 94133
Last sale
051221

Landlord portfolio

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

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Augrented Insights
Initial analysis

331 Octavia Street is a three-story, 24-unit multi-family residential building constructed in 1906 in the Hayes Valley neighborhood. The property has undergone numerous renovations and improvements over the past decade, with significant work completed between 2014-2021 including multiple unit remodels (Units 1, 6, 8, 12, 14, and 23) featuring kitchen and bathroom upgrades, electrical improvements, and plumbing renovations totaling approximately $210,000. The building faced several serious issues in 2014-2015, including water intrusion problems, foundation concerns, and multiple violations related to dry rot and structural issues, which were subsequently addressed through repairs. There have been recurring fire safety concerns, with multiple violations regarding alarm systems, sprinkler/standpipe systems, and other fire code issues between 2018 and 2025, though most have been marked as corrected. A cluster of recent building complaints from 2023-2024 suggests ongoing concerns about building maintenance, including an active complaint from December 2023 regarding common areas and a 2015 complaint about lack of resident management and interior conditions. The property has maintained an active pattern of unit improvements, with significant investments in modernizing individual apartments, though some recent fire safety violations and the active complaint about common areas in 2023 indicate that not all building systems may be maintaining equivalent standards to the individual unit improvements.

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

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Risk rating

How 331 Octavia 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
11th percentile

Out of 1027 buildings in this neighborhood, 914 are predicted to be safer.

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 25.6%
Moderate concern 35.5%
Severe concern 39.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

331 Octavia St apartment reviews

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The story over time

331 Octavia St event timeline

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

2025
311 Request Aug 04
Abandoned vehicle
Parking Enforcement

See all 11 events

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

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Every record we have

Full data for 331 Octavia 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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