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46-48 Henry St

Duboce Triangle, SF 94114 3541052 2 units · 2 fl · 1907

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 Duboce Triangle — not a forecast
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Duboce Triangle average of 2.3.

Rent & eviction protection

Is 46-48 Henry 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 1907
2 or more units
2 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 1907
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 built1907
Total area1,912 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3541052
Ownership

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

Owner name
Mailing address
46 - 48 Henry St San Francisco CA 94114
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.

46 Henry St, San Francisco, CA 94114
48 Henry St, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 46-48 Henry Street in Duboce Triangle, owned by Mario M. Castillo, is a two-story flats and duplex structure built in 1907. The property has undergone several significant maintenance and improvement projects over the years, most notably the replacement of an 80% AFUE furnace in 2018 and two gas meter relocations in 2008. A major cluster of building violations was recorded in July 2015, including issues with floor coverings, weatherproofing of the garage door, stairs guardrail repairs, and concerns about lead-based paint, though all these violations were abated by September 2015. That same year, there was a complaint regarding non-functioning stove and unsafe stairs, which was also resolved. A more recent concern was filed in January 2017 regarding asbestos-wrapped heating ducts, though this complaint was marked as not active.

The building's maintenance history shows attention to roof care, with a reroofing project completed in 2003 at a cost of $8,860. While there have been multiple 311 calls related to the property's immediate vicinity from 2019 onwards, these primarily concerned street parking and tree maintenance issues rather than building-specific problems. Recent external matters included several reports of vehicles blocking driveways or parking on sidewalks in 2021-2022, and tree-related complaints in 2019 regarding street trees. The property's documented history suggests that while there have been periodic maintenance issues requiring attention, these have generally been addressed within reasonable timeframes once brought to attention.

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

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Risk rating

How 46-48 Henry 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
70thpercentile

Out of 287 buildings in this neighborhood, 86 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
82%
No DBI
violation
18%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building permits, owner's portfolio

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

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month risk forecast
Low failure risk 18%
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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The story over time

46-48 Henry St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 46-48 Henry St apartments

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

Side by side

How 46-48 Henry St compares to the neighborhood

This building against comparable properties in Duboce Triangle. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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