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232-234 Mullen Ave

Bernal Heights, SF 94110 5537020 2 units · 2 fl · 1900

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 Bernal Heights
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Bernal Heights average of 1.2.

Rent & eviction protection

Is 232-234 Mullen 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 1900
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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
Units2
Floors2
Year built1900
Total area1,750 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5537020
Ownership

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

Owner name
Borge Joanne
Mailing address
3979 Sacramento St San Francisco CA 94118
Last sale
000000

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.

234 Mullen Ave, San Francisco, CA 94110
232 Mullen Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 232-234 Mullen Avenue in Bernal Heights is a two-unit, two-story multi-family residential building constructed in 1900, currently owned by Joanne Borge. The building has undergone several significant maintenance and improvement projects over its history, most recently in 2020-2021 when multiple systems were upgraded, including the installation of a new water heater, replacement of a wall/floor furnace, and ventilation improvements with new ducting. The building received substantial interior work in the late 1980s, including repairs to walls and ceilings across multiple permit applications, with some related to sound proofing. A roof replacement was completed in 2005, though the permit has since expired.

In recent years, there has been one notable building complaint filed in 2019 regarding prolonged construction work at a neighboring property, though this complaint is now listed as not active. The most recent building-related concern occurred in November 2024 involving a sewage back-up discharge, which was promptly resolved by the sewer operations team. The property has experienced multiple parking-related issues in 2024, with several reports of abandoned vehicles and illegal parking in the vicinity, though these are not directly related to the building's condition or safety. Additionally, there are two open urban forestry cases from 2024 regarding tree-related issues near the property, and there was a smoke detector activation incident recorded, though it was determined to be due to a malfunction with no injuries reported.

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

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Risk rating

How 232-234 Mullen 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
57th percentile

Out of 1276 buildings in this neighborhood, 549 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

Neighborhood location

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

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 79.8%
Moderate concern 15.3%
Severe concern 4.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

232-234 Mullen Ave event timeline

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

2026
311 Request Jun 09
Other
Street Defect

See all 8 events

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

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Every record we have

Full data for 232-234 Mullen Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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