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40-46 John St

Nob Hill, SF 94133 0180037 4 units · 2 fl · 1908

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Nob Hill — not a forecast
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 40-46 John 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 1908
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RH3
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 1908
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
Units4
Floors2
Year built1908
Total area3,290 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0180037
Ownership

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

Mailing address
42 John St San Francisco CA 94133
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.

44 John St, San Francisco, CA 94133
40 John St, San Francisco, CA 94133
42 John St, San Francisco, CA 94133
46 John St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 40-46 John St in Nob Hill, owned by Robert K & Frances Wong, was constructed in 1908 and has undergone several routine safety inspections over the years. The most significant cluster of violations occurred in July 2007, when multiple safety issues were identified, including egress obstructions, missing door closers at smoke and fire doors, and inadequate water heater safety features. These violations were all resolved by September 2007. A 1999 routine safety inspection and another in 2015 (specifically for common areas) also took place, though no violations from these inspections are recorded in the available data. The building's maintenance record shows a reroofing project was initiated in 1992, though this permit is now expired.

The property has generated several 311 calls in recent years, primarily related to street and sidewalk issues rather than building-specific problems. These external incidents include parking enforcement in 2019, general street cleaning in 2018, and reports of abandoned vehicles in 2015 and 2016, all of which were resolved by city authorities or resulted in citations. A color curb complaint from 2013 was transferred to the Color Curb Program for survey and processing. The available records indicate no active violations or complaints as of the latest data, suggesting that all previously recorded issues have been addressed.

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

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Risk rating

How 40-46 John 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
66thpercentile

Out of 1125 buildings in this neighborhood, 382 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
73%
No DBI
violation
27%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 27%
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

40-46 John St event timeline

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

2025
Planning Record Apr 30
Approved – replace lower front window with wood clad window, same size, operation, and appearance. Interior renovation to convert ground floor storage space to habitable space for unit 40 John (2nd floor left), including 1 bedroom. Proposed office and playroom may not be used as sleeping rooms per plans, new space less than 800 square feet so does not require planning impact fees. If ground floor habitable space is further expanded, must come back to Planning for review and potential impact fee assessment.
Closed
Building PermitApr 09
Construct 1 bedroom, 2 bathroom, 2 media room, home office at g/f. replace (e) brick foundation w/ concrete footing.

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 40-46 John St apartments

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

Side by side

How 40-46 John St compares to the neighborhood

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