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667-669 4Th Ave

Inner Richmond, SF 94118 1640017 2 units · 2 fl · 1907

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 667-669 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 1907
2 or more units
2 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
Units2
Floors2
Year built1907
Total area2,700 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1640017
Ownership

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

Owner name
Michael & Rose Chiu Hong Re
Mailing address
Bypass Trust 2290 41St Ave San Francisco CA 94116
Last sale
110294

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.

667 04th Ave, San Francisco, CA 94118
669 04th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 667-669 4th Avenue in San Francisco's Inner Richmond district is a two-unit, two-story multi-family residential building constructed in 1907, currently owned by Michael & Rose Chiu Hong Re. The building has undergone several significant improvements over the past few decades, with the most substantial renovation occurring in March 2019, when the entire house received new wiring, a new subpanel, bathroom and kitchen upgrades including new tiles, fixtures, and cabinets, as well as comprehensive painting throughout the property. Earlier major works include a reroofing project completed in 2004 at a cost of $11,500, and stair and garage repairs carried out in December 1989.

The building experienced a sewage backup issue in February 2018, which was promptly resolved by PUC Sewer Operations. The property has faced some external challenges in recent years, including incidents of graffiti in May 2020 and Vandalism of a damaged tree in January 2021, both of which were resolved through proper channels. Between late 2019 and 2020, there were multiple parking enforcement actions required for various vehicles blocking driveways and engaging in double parking near the property, with at least one citation issued during this period. While these parking issues and the graffiti incident were notable, they primarily relate to street-level activities rather than the building itself. The most recent documented work on the property, completed in 2019, suggests that the major systems of the building have been properly maintained and upgraded to modern standards.

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

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Risk rating

How 667-669 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
68th percentile

Out of 1723 buildings in this neighborhood, 551 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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 age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 79.5%
Moderate concern 13.9%
Severe concern 6.6%
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

667-669 4Th Ave event timeline

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

2026
311 Request Feb 17
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Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 667-669 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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