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4337-4339 Balboa St

Outer Richmond, SF 94121 1600041B 2 units · 2 fl · 1924

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
Above average
avg 0.7
1
FewerMore

This building has 1 novs (7y), above the Outer Richmond average of 0.7.

Rent & eviction protection

Is 4337-4339 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
2 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.

Building characteristics
Units2
Floors2
Year built1924
Total area1,400 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1600041B
Ownership

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

Owner name
Yip/Tang Family Trust
Mailing address
Sze Hoi Yip & Ziling Tang, 438A 21St Ave San Francisco CA 94121
Last sale
051705

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.

4337 Balboa St, San Francisco, CA 94121
4339 Balboa St, San Francisco, CA 94121
Augrented Insights
AI summary

The two-unit, two-story multi-family residential building at 4337-4339 Balboa Street in San Francisco's Outer Richmond neighborhood, owned by the Yip/tang Family Trust, has undergone several significant improvements since its construction in 1924. The property features a mixed-use configuration with commercial space, originally containing four units or less, and has seen various upgrades including a comprehensive sprinkler system installation in 2000 (valued at $14,000), a vertical and horizontal addition completed in 1999 ($80,000), and dental office conversions in 2009 involving substantial improvements including plumbing and electrical modifications for specialized equipment ($25,000). A notable concerning incident occurred in early 2023 when approximately 5 feet of foundation at the south property line was reported as undermined, with inspection revealing a 2-foot depth beneath the foundation; this violation was abated by May 2023.

The building's maintenance record shows regular upkeep, with the most recent repair work in 2015 addressing issues with wall corners and window casing wood in the backyard ($1,300). Historical improvements include storefront glass replacement in 1988, various ground floor remodels, and office modifications in the early 2000s. While there have been several building complaints over the years, most were minor or quickly resolved, including unauthorized window installation in 2002 and construction material deliveries in 2006. The property has experienced multiple parking-related issues in the vicinity, as evidenced by multiple 311 calls between 2019-2024, primarily regarding sidewalk parking violations, though these are external to the building itself. The general condition and maintenance history of the property suggests regular upkeep, with the most significant structural concern being the recent foundation issue that has since been addressed.

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Risk rating

How 4337-4339 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
24th percentile

Out of 1040 buildings in this neighborhood, 790 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 63.8%
Moderate concern 28.6%
Severe concern 7.7%
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

4337-4339 Balboa St event timeline

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

2026
311 Request Jun 01
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Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 4337-4339 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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