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680-682 4Th Ave

Inner Richmond, SF 94118 1641030 3 units · 3 fl · 1905

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 Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 680-682 4Th 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 1905
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
Floors3
Year built1905
Total area2,902 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1641030
Ownership

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

Owner name
Matsunaga Hirokichi & Junko
Mailing address
682 4th Ave San Francisco CA 94118
Last sale
090313

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.

682 04th Ave, San Francisco, CA 94118
680 04th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 680-682 4th Avenue in the Inner Richmond, owned by Matsunaga Hirokichi & Junko, has undergone several significant maintenance and safety improvements since its construction in 1905. Most recently, in 2019, the building received a high-efficiency heating system upgrade and foundation stabilization work costing $11,200 was completed in 2018. The property has a documented history of addressing structural concerns, including multiple instances of stair repairs due to dry rot, with the most recent occurring in 2016 following a routine safety inspection. This 2015 inspection also identified several fire safety issues that were subsequently resolved by April 2016, including the installation of carbon monoxide alarms, fire extinguishers, and repairs to smoke enclosure door closers.

The building's maintenance record includes historical improvements such as a garage addition completed in 1990 and roof work in 1993. More recent infrastructure concerns have been addressed, including a sewer line issue in 2019 and various tree-related matters, with the most recent tree maintenance response occurring in 2024. The property has been subject to regular housing inspections, with all identified violations being addressed and abated. Recent external incidents primarily involve parking enforcement matters, with a notable sewage backup issue in 2019 being effectively resolved through municipal intervention. The building appears to be actively maintained, with prompt responses to safety violations and infrastructure needs, particularly in terms of fire safety and structural integrity.

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

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Risk rating

How 680-682 4Th 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
40th percentile

Out of 1723 buildings in this neighborhood, 1034 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 76.8%
Moderate concern 14.6%
Severe concern 8.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

680-682 4Th Ave event timeline

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

2019
Plumbing Permit Jul 09
Work category: 1m; replacing existing heating system with a high efficiency system.
Expired

See all 1 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 680-682 4Th Ave apartments

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

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