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34-36 Castle St

Telegraph Hill, SF 94133 0114048 2 units · 2 fl · 1907

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 34-36 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 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.

Building characteristics
Units2
Floors2
Year built1907
Total area1,860 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0114048
Ownership

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

Owner name
Scanlon Joseph P Iii & Elle
Mailing address
34 - 36 Castle St San Francisco CA 94133
Last sale
061316

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.

34 Castle St, San Francisco, CA 94133
36 Castle St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The two-unit residential building at 34-36 Castle Street in Telegraph Hill, owned by Joseph P. Scanlon III & Elle, is a two-story flats and duplex structure built in 1907. The property has undergone significant maintenance and improvements over the past several years, with the most recent work in April 2024 focusing on repairs to the rear stairs and replacement of dry rotted wood siding and trim, costing a combined $35,000. The building underwent substantial garage and utility improvements in late 2021, including replacement of water heaters, furnace relocation, concrete slab replacement, drainage installation, and electrical upgrades, totaling $30,000. Additional renovations during this period included a bathroom remodel at 34 Castle Street, installation of a bathroom fan at 36 Castle Street, and the addition of a handrail at rear stairs.

The property's maintenance history shows consistent attention to structural integrity and modern updates, with earlier projects including the replacement of three back stairs in 2007 and various electrical improvements such as bathroom lighting and water heater circuits in 2022. The building has seen particular focus on addressing dry rot issues, as evidenced by multiple repairs to affected areas. Recent improvements suggest ongoing commitment to maintaining and upgrading the property, with a combination of general maintenance and modernization efforts. The building's permit history indicates proper oversight and completion of necessary repairs and improvements, with all major recent projects marked as complete.

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

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Risk rating

How 34-36 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
94th percentile

Out of 684 buildings in this neighborhood, 41 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
95%
No DBI
violation
5%
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 age

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

Neighborhood location

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

12-Month severity forecast
No violation 90.8%
Moderate concern 6.9%
Severe concern 2.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

34-36 Castle St event timeline

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

2024
Building Permit Apr 25
Repair dryrotted stairs at rear of building. - less than 50%.
$15,000 · Complete
Building PermitApr 03
Replace dry rotted wood siding and trim at rear of building and in lightwell with new composition hardi plank siding.approx 250 ft2

See all 11 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 34-36 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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