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1640 Bay St

Marina, SF 94123 0460A009 17 units · 3 fl · 1956

This building has a substantial enforcement record over the last seven years, and our model sees a moderate chance of more in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

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

This building has 7 novs (7y), above the Marina average of 1.1.

Rent & eviction protection

Is 1640 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 1956
2 or more units
17 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 1956
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
Units17
Floors3
Year built1956
Total area13,980 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0460A009
Ownership

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

Mailing address
145 Poplar Dr Kentfield CA 94904
Last sale
July 15, 2011

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Augrented Insights
Initial analysis

1640 Bay Street is a 17-unit, 3-story multi-family residential building constructed in 1956, currently owned by Mehan Properties LLC. The building has undergone several significant safety improvements, including a completed soft-story retrofit in 2016 at a cost of $178,000, which required to comply with seismic safety regulations. Most recently, in 2024, the building upgraded its fire alarm system to meet current fire code requirements, with the work now complete at a cost of $41,800. The building has experienced multiple fire safety-related issues over the years, with violations recorded for sleeping area requirements (December 2023), alarm system maintenance (March 2019), and several fire alarm system and fire escape concerns between 2015 and 2023 - though most of these were corrected promptly.

The property has faced compliance challenges regarding its boiler systems, with multiple violations recorded between 2005 and 2024 for operating permits - though these were ultimately abated. In terms of emergency responses, there have been several false alarms and non-fire related incidents recorded between 2015 and 2023, including one intentional building fire (date unspecified) with no civilian injuries reported. The building's maintenance history shows attention to major infrastructure elements, including reroofing work completed in both 1996 and 2003. Recent activity around the property (2024) has included multiple parking enforcement calls, primarily for blocked driveways, and some minor sanitation issues, though these do not appear to directly affect building safety. The building's documented history shows a reasonable pattern of addressing safety and compliance issues, though the recurring nature of some violations suggests ongoing monitoring of building systems and code compliance requirements.

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

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Risk rating

How 1640 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
21stpercentile

Out of 988 buildings in this neighborhood, 781 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
52%
No DBI
violation
48%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

NOV rate, owner's portfolio

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

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month risk forecast
Moderate failure risk 48%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1640 Bay St apartment reviews

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On the map

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The story over time

1640 Bay St event timeline

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

2025
DBI Complaint Jun 05
Date last observed: 04-jun-25; exact location: main bldg; building type: residence/dwelling ; additional information: no address visible from the street in violation of building code;
Building Inspection Division
Building Violation (NOV)May 27
Building violation

See all 13 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1640 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 1640 Bay St compares to the neighborhood

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