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4125-4127 Balboa St

Outer Richmond, SF 94121 1602037 3 units · 1 fl · 1940

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 4125-4127 Balboa 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 1940
2 or more units
3 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
Units3
Floors1
Year built1940
Total area1,940 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1602037
Ownership

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

Owner name
Lui May Y
Mailing address
687 23rd Ave San Francisco CA 94121
Last sale
041306

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.

4125 Balboa St, San Francisco, CA 94121
4127 Balboa St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 4125-4127 Balboa Street in San Francisco's Outer Richmond neighborhood is a one-story multi-family residential building with three units, constructed in 1940. The building's history has been marked by several significant events, most notably in 2003 when there were multiple building violations and complaints regarding unauthorized construction work and a possible illegal third unit in the ground level. This led to the suspension of several building permits, which were finally addressed in 2007 through comprehensive renovations costing $60,000 that included window replacements, roof work, bathroom updates, and kitchen improvements in the upper unit, along with electrical rewiring and plumbing upgrades.

In addition to the major 2007 improvements, the building underwent several changes and faced multiple regulatory challenges between 2001-2004, including attempts to return the building to residential use only and remove an unauthorized storefront construction at the ground floor. The property also experienced some maintenance issues in recent years, with two streetlight outages reported in 2016 and 2022, and recurring graffiti incidents on nearby poles documented through 2019. A furnace replacement was recorded in 2017, indicating ongoing maintenance efforts. While the building had several historical violations and compliance issues between 2001-2007, recent records show no active violations or complaints, suggesting improved regulatory compliance in recent years. The most recent tenant-related issues appear to be limited to typical urban neighborhood concerns such as parking violations and street maintenance, rather than building-specific problems.

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

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Risk rating

How 4125-4127 Balboa 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
21th percentile

Out of 1040 buildings in this neighborhood, 822 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 60.4%
Moderate concern 27.0%
Severe concern 12.6%
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

4125-4127 Balboa St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 4125-4127 Balboa 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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