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4021-4025 Balboa St

Outer Richmond, SF 94121 1603049 3 units · 3 fl · 1924

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Richmond — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 4021-4025 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 1924
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
NC1
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1924
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units3
Floors3
Year built1924
Total area2,575 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1603049
Ownership

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

Owner name
Mailing address
4025 Balboa St San Francisco CA 94121
Last sale
June 14, 2006

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

4021 A Balboa St, San Francisco, CA 94121
4021 Balboa St, San Francisco, CA 94121
4025 Balboa St, San Francisco, CA 94121
4023 Balboa St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 4021-4025 Balboa Street is a three-story multi-family residential building with mixed-use classification, constructed in 1924 and currently owned by Johnny Ho. The building has undergone significant modifications over the past several years, most notably involving the conversion and legalization of dwelling units. In 2018, a first-floor unit was legalized at substantial cost, followed by various permits in 2023-2024 related to the addition of an accessory dwelling unit (ADU) including multiple bedrooms, bathrooms, and living spaces. Recent work has included the installation of a fire sprinkler system (2024) and modifications to skylights and fire parapets (2024), suggesting ongoing improvements to safety systems.

The property has a documented history of compliance issues and unauthorized modifications, most notably during 2006-2007 when there were violations related to the unauthorized conversion of commercial space to residential use, which was subsequently abated. More recent concerns have emerged regarding unauthorized construction work, with complaints filed in late 2023 about work being performed without proper permits and beyond scope, including the conversion of storage space to ADUs. The building's recent renovation history includes multiple permit filings for corrections and modifications, indicating active ongoing development. There have also been several building complaints regarding unauthorized work, illegal change of use, and plumbing installation issues, with some complaints remaining active as of 2023. The property has experienced recurring issues with parking violations and debris, as evidenced by multiple 311 calls for service between 2022 and 2024, primarily related to sidewalk parking violations.

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

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Risk rating

How 4021-4025 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
28thpercentile

Out of 1040 buildings in this neighborhood, 749 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month risk forecast
Low failure risk 22%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

4021-4025 Balboa St apartment reviews

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On the map

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The story over time

4021-4025 Balboa St event timeline

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

2026
Plumbing Permit Jul 31
Work category: 4pa; fire sprinkler system
Issued
Electrical PermitJul 17
Upgrade service to a (3) meter single phase 320 amp (using 400 amp equipement, 3 feeders), 240 volt service at common area (commercial 150 amp, adu 100 amp, e) residential 125 amp)

See all 15 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4021-4025 Balboa St apartments

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

Side by side

How 4021-4025 Balboa St compares to the neighborhood

This building against comparable properties in Outer Richmond. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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