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4248-4250 Balboa St

Outer Richmond, SF 94121 1586020F 3 units · 2 fl · 1946

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 4248-4250 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 1946
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
Floors2
Year built1946
Total area2,662 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1586020F
Ownership

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

Owner name
Semyon & Ella Portnoy Revoc
Mailing address
Portnoy Semyon & Ella Trust 674 42Nd Ave San Francisco CA 94121
Last sale
072808

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.

4248 Balboa St, San Francisco, CA 94121
4250 Balboa St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 4248-4250 Balboa Street is a two-story, three-unit multi-family residential building located in San Francisco's Outer Richmond neighborhood. Built in 1946 and currently owned by the Semyon & Ella Portnoy Revocable Trust, this flats-style building has undergone several significant maintenance and improvement projects over the years. In 2005-2006, the building underwent substantial renovations including kitchen remodeling and bathroom additions, accompanied by comprehensive electrical system upgrades including the installation of new lights, switches, receptacles, and a panel.

The building has a documented history of safety-related issues that were addressed over time. In September 2000, multiple violations were recorded concerning plumbing, electrical systems, and fire safety, including deteriorated exterior drainage pipes, fire proofing materials, combustible storage, and other infrastructure concerns. These violations were subsequently abated by November 2000. A routine apartment housing inspection in January 2008 led to additional fire safety and security citations regarding fire escape maintenance, alarm systems, and self-closing devices, though these were also resolved by March 2008. More recently, there has been some ongoing maintenance work in the vicinity of the building, with multiple 311 calls in 2024 primarily related to graffiti removal, tree maintenance, and street cleaning, though these are typical urban maintenance issues and not directly related to the building's condition. A commercial vehicle service business operating from the property (Med Van Seniors) was documented in planning records, though it's unclear if this operation is still current.

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

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Risk rating

How 4248-4250 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
20th percentile

Out of 1040 buildings in this neighborhood, 832 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 62.0%
Moderate concern 23.2%
Severe concern 14.8%
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

4248-4250 Balboa St event timeline

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

2023
311 Request Aug 05
General cleaning
Other Loose Garbage

See all 1 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4248-4250 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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