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1670-1672 Bay St

Marina, SF 94123 0460A012 2 units · 2 fl · 1939

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Marina — not a forecast
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Marina average of 1.1.

Rent & eviction protection

Is 1670-1672 Bay 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 1939
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM3
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 1939
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
Units2
Floors2
Year built1939
Total area2,916 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0460A012
Ownership

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

Owner name
Mailing address
Wong Leona Ttee 150 El Bonito Way Millbrae CA 94030
Last sale
—

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.

1672 Bay St, San Francisco, CA 94123
1670 Bay St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1670-1672 Bay Street is a well-maintained two-unit, two-story multi-family residential building located in San Francisco's Marina neighborhood. Built in 1939 and currently owned by Wong Fmly Tr, this flats/duplex structure has undergone significant interior improvements over the past decade. Most notably, in 2020-2021, the building received substantial renovations to both units, including complete kitchen and bathroom remodels featuring new fixtures, appliances, and lighting systems at a cost of $35,000, with corresponding plumbing and electrical work properly permitted and completed. Earlier improvements were completed in 2015, including similar updates to the second floor kitchen and bathroom, focusing on modernizing fixtures, tiles, and windows at a cost of $28,000. The building has also received consistent maintenance attention to its roof, with documented re-roofing work in 1989, 1995, and most recently in 2015, indicating regular upkeep of this critical building component.

Recent activity around the building has primarily involved parking-related issues, with eight documented cases of driveway blocking or illegal parking between June 2024 and January 2025. These cases were consistently addressed by parking enforcement officers, with at least two resulting in citations being issued. Other neighborhood concerns have included occasional reports of garbage and debris (now resolved) and a park rules violation in the vicinity, though these are not directly related to the building's condition or management. The extensive renovation work completed in recent years, along with proper permitting and inspections, suggests active maintenance and upgrading of the property's living spaces and systems.

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

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Risk rating

How 1670-1672 Bay 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
77thpercentile

Out of 988 buildings in this neighborhood, 227 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
90%
No DBI
violation
10%
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 complaints, owner's portfolio

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

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Owner's portfolio size

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

12-Month risk forecast
Low failure risk 10%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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On the map

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8 found
The story over time

1670-1672 Bay St event timeline

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

2020
Plumbing Permit Oct 29
Kitchen remodel - reroute gas pipe for stove and kitchen sink water line. bathroom remodel - install new fixtures w/ new pre-fab shower pan, bath tub, new sink, and new toilet.
Complete
Electrical PermitOct 29
Install new afc/gfc outlets for kitchen, new recess lighting, garbage disposal, dish washer, microwave unit for remodel kitchen. isntall new gfc outlet, recess ligths, exhaust fan for remodel bathroom.

See all 3 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1670-1672 Bay St apartments

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

Side by side

How 1670-1672 Bay St compares to the neighborhood

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