Free SF apartment background check

64 Castle St

Telegraph Hill, SF 94133 0114052 5 units · 3 fl · 1906

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 Telegraph Hill
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Telegraph Hill average of 1.2.

Rent & eviction protection

Is 64 Castle 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 1906
2 or more units
5 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.

Building characteristics
Units5
Floors3
Year built1906
Total area4,499 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0114052
Ownership

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

Owner name
Servatius Ryan A & Ferguson
Mailing address
345 Union St San Francisco CA 94133
Last sale
031417

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.

347 Union St, San Francisco, CA 94133
345 Union St, San Francisco, CA 94133
64 Castle St, San Francisco, CA 94133
343 Union St, San Francisco, CA 94133
341 Union St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-story multi-family residential building at 64 Castle Street, located in Telegraph Hill, was constructed in 1906 and contains 5 units, including a public laundry facility. The property has undergone several significant improvements over the past two decades, with the most recent work completed in 2020 involving the replacement of 13 aluminum windows with wood-clad windows at a cost of $25,000. Previous renovations include kitchen upgrades (2015-2013), exterior siding replacement (2011), and repair of dry rot in the bay window soffit (2007). The building faced several building violations in 2005 related to fire safety equipment and smoke detection systems, though these were all abated by June 2005. A lead paint-related violation was issued in 2012 regarding weatherproofing on wood trim, and a 2013 complaint noted issues with a leaking laundry facility affecting the foundation.

The property has maintained regular updates and repairs to address various maintenance needs, though there have been recurring issues noted through 311 calls, primarily concerning parking violations and street maintenance matters in the surrounding area. The building's history includes routine inspections dating back to 1996, with all violations being resolved promptly. The most recent significant external work involved window replacements, and the property has generally adhered to maintenance requirements though occasional violations regarding fire safety equipment and weatherproofing have been noted and resolved.

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

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Risk rating

How 64 Castle 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

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
36th percentile

Out of 684 buildings in this neighborhood, 438 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

Building age

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

Owner's portfolio size

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

12-Month severity forecast
No violation 62.6%
Moderate concern 11.3%
Severe concern 26.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

64 Castle St apartment reviews

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The story over time

64 Castle St event timeline

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

2026
Plumbing Permit Jan 25
Work category: 1p; new water heater
Complete
Plumbing PermitJan 25
Work category: 1p; new water heater

See all 8 events

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

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Every record we have

Full data for 64 Castle St 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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