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255 9Th Ave

Inner Richmond, SF 94118 1424011 12 units · 3 fl · 1925

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 255 9Th Ave 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
12 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units12
Floors3
Year built1925
Total area7,674 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1424011
Ownership

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

Owner name
Bettie Lum Declaration Of T
Mailing address
Bettie Lum, Trustee 3050 26Th Ave San Francisco CA 94132
Last sale
110916

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit, 3-story multi-family residential building at 255 9th Ave in the Inner Richmond, owned by Bettie Lum Declaration Of T, has undergone several significant improvements since its construction in 1925. Most notably, the building completed a mandatory soft-story retrofit in 2020 at a cost of $65,000, demonstrating compliance with seismic safety requirements. The property has seen various unit-specific improvements, including window replacements in Unit #8 (2011), a kitchen remodel in Unit #6 (2010), and foundation raising work completed in 1990. A water main replacement project initiated in July 2021 remains in expired status.

The building's history includes a cluster of fire safety violations in September 2001, all of which were abated by October 18, 2001, involving issues with fire escape maintenance, egress obstruction, combustible storage, fire proofing, and smoke enclosure hardware. A more recent violation occurred in May 2010 regarding unauthorized interior remodeling that created hazardous conditions during construction, though this was eventually resolved by 2011. The property has undergone routine housing inspections, and while there was a dampness and potential leakage issue reported in 1999, there have been no significant housing code violations recorded since.

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

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Risk rating

How 255 9Th Ave'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
4th percentile

Out of 1723 buildings in this neighborhood, 1654 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
36%
No DBI
violation
64%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 28.2%
Moderate concern 45.1%
Severe concern 26.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

255 9Th Ave apartment reviews

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The story over time

255 9Th Ave event timeline

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

2025
Fire Complaint Feb 21
Sprinkler/Standpipe Systems
No Merit

See all 4 events

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

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Every record we have

Full data for 255 9Th Ave 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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